* [PATCH 01/52] sfc: Replace net_dev->priv with netdev_priv(net_dev)
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
@ 2008-09-01 11:43 ` Ben Hutchings
2008-09-01 11:43 ` [PATCH 02/52] sfc: Change first parameter type of {set,clear}_bit_le() to unsigned Ben Hutchings
` (50 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:43 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers, Wang Chen
Use of the net_device::priv field is deprecated.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/efx.c | 24 ++++++++++++------------
drivers/net/sfc/ethtool.c | 34 +++++++++++++++++-----------------
drivers/net/sfc/falcon.c | 4 ++--
drivers/net/sfc/tx.c | 2 +-
4 files changed, 32 insertions(+), 32 deletions(-)
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c
index 45c72ee..4253980 100644
--- a/drivers/net/sfc/efx.c
+++ b/drivers/net/sfc/efx.c
@@ -1249,7 +1249,7 @@ static void efx_monitor(struct work_struct *data)
*/
static int efx_ioctl(struct net_device *net_dev, struct ifreq *ifr, int cmd)
{
- struct efx_nic *efx = net_dev->priv;
+ struct efx_nic *efx = netdev_priv(net_dev);
EFX_ASSERT_RESET_SERIALISED(efx);
@@ -1303,7 +1303,7 @@ static void efx_fini_napi(struct efx_nic *efx)
*/
static void efx_netpoll(struct net_device *net_dev)
{
- struct efx_nic *efx = net_dev->priv;
+ struct efx_nic *efx = netdev_priv(net_dev);
struct efx_channel *channel;
efx_for_each_channel_with_interrupt(channel, efx)
@@ -1321,7 +1321,7 @@ static void efx_netpoll(struct net_device *net_dev)
/* Context: process, rtnl_lock() held. */
static int efx_net_open(struct net_device *net_dev)
{
- struct efx_nic *efx = net_dev->priv;
+ struct efx_nic *efx = netdev_priv(net_dev);
EFX_ASSERT_RESET_SERIALISED(efx);
EFX_LOG(efx, "opening device %s on CPU %d\n", net_dev->name,
@@ -1337,7 +1337,7 @@ static int efx_net_open(struct net_device *net_dev)
*/
static int efx_net_stop(struct net_device *net_dev)
{
- struct efx_nic *efx = net_dev->priv;
+ struct efx_nic *efx = netdev_priv(net_dev);
int rc;
EFX_LOG(efx, "closing %s on CPU %d\n", net_dev->name,
@@ -1356,7 +1356,7 @@ static int efx_net_stop(struct net_device *net_dev)
/* Context: process, dev_base_lock or RTNL held, non-blocking. */
static struct net_device_stats *efx_net_stats(struct net_device *net_dev)
{
- struct efx_nic *efx = net_dev->priv;
+ struct efx_nic *efx = netdev_priv(net_dev);
struct efx_mac_stats *mac_stats = &efx->mac_stats;
struct net_device_stats *stats = &net_dev->stats;
@@ -1403,7 +1403,7 @@ static struct net_device_stats *efx_net_stats(struct net_device *net_dev)
/* Context: netif_tx_lock held, BHs disabled. */
static void efx_watchdog(struct net_device *net_dev)
{
- struct efx_nic *efx = net_dev->priv;
+ struct efx_nic *efx = netdev_priv(net_dev);
EFX_ERR(efx, "TX stuck with stop_count=%d port_enabled=%d: %s\n",
atomic_read(&efx->netif_stop_count), efx->port_enabled,
@@ -1417,7 +1417,7 @@ static void efx_watchdog(struct net_device *net_dev)
/* Context: process, rtnl_lock() held. */
static int efx_change_mtu(struct net_device *net_dev, int new_mtu)
{
- struct efx_nic *efx = net_dev->priv;
+ struct efx_nic *efx = netdev_priv(net_dev);
int rc = 0;
EFX_ASSERT_RESET_SERIALISED(efx);
@@ -1445,7 +1445,7 @@ static int efx_change_mtu(struct net_device *net_dev, int new_mtu)
static int efx_set_mac_address(struct net_device *net_dev, void *data)
{
- struct efx_nic *efx = net_dev->priv;
+ struct efx_nic *efx = netdev_priv(net_dev);
struct sockaddr *addr = data;
char *new_addr = addr->sa_data;
@@ -1469,7 +1469,7 @@ static int efx_set_mac_address(struct net_device *net_dev, void *data)
/* Context: netif_tx_lock held, BHs disabled. */
static void efx_set_multicast_list(struct net_device *net_dev)
{
- struct efx_nic *efx = net_dev->priv;
+ struct efx_nic *efx = netdev_priv(net_dev);
struct dev_mc_list *mc_list = net_dev->mc_list;
union efx_multicast_hash *mc_hash = &efx->multicast_hash;
int promiscuous;
@@ -1510,7 +1510,7 @@ static int efx_netdev_event(struct notifier_block *this,
struct net_device *net_dev = ptr;
if (net_dev->open == efx_net_open && event == NETDEV_CHANGENAME) {
- struct efx_nic *efx = net_dev->priv;
+ struct efx_nic *efx = netdev_priv(net_dev);
strcpy(efx->name, net_dev->name);
}
@@ -1568,7 +1568,7 @@ static void efx_unregister_netdev(struct efx_nic *efx)
if (!efx->net_dev)
return;
- BUG_ON(efx->net_dev->priv != efx);
+ BUG_ON(netdev_priv(efx->net_dev) != efx);
/* Free up any skbs still remaining. This has to happen before
* we try to unregister the netdev as running their destructors
@@ -2105,7 +2105,7 @@ static int __devinit efx_pci_probe(struct pci_dev *pci_dev,
NETIF_F_HIGHDMA | NETIF_F_TSO);
if (lro)
net_dev->features |= NETIF_F_LRO;
- efx = net_dev->priv;
+ efx = netdev_priv(net_dev);
pci_set_drvdata(pci_dev, efx);
rc = efx_init_struct(efx, type, pci_dev, net_dev);
if (rc)
diff --git a/drivers/net/sfc/ethtool.c b/drivers/net/sfc/ethtool.c
index e2c75d1..8a15be6 100644
--- a/drivers/net/sfc/ethtool.c
+++ b/drivers/net/sfc/ethtool.c
@@ -183,7 +183,7 @@ static struct efx_ethtool_stat efx_ethtool_stats[] = {
/* Identify device by flashing LEDs */
static int efx_ethtool_phys_id(struct net_device *net_dev, u32 seconds)
{
- struct efx_nic *efx = net_dev->priv;
+ struct efx_nic *efx = netdev_priv(net_dev);
efx->board_info.blink(efx, 1);
schedule_timeout_interruptible(seconds * HZ);
@@ -195,7 +195,7 @@ static int efx_ethtool_phys_id(struct net_device *net_dev, u32 seconds)
int efx_ethtool_get_settings(struct net_device *net_dev,
struct ethtool_cmd *ecmd)
{
- struct efx_nic *efx = net_dev->priv;
+ struct efx_nic *efx = netdev_priv(net_dev);
int rc;
mutex_lock(&efx->mac_lock);
@@ -209,7 +209,7 @@ int efx_ethtool_get_settings(struct net_device *net_dev,
int efx_ethtool_set_settings(struct net_device *net_dev,
struct ethtool_cmd *ecmd)
{
- struct efx_nic *efx = net_dev->priv;
+ struct efx_nic *efx = netdev_priv(net_dev);
int rc;
mutex_lock(&efx->mac_lock);
@@ -224,7 +224,7 @@ int efx_ethtool_set_settings(struct net_device *net_dev,
static void efx_ethtool_get_drvinfo(struct net_device *net_dev,
struct ethtool_drvinfo *info)
{
- struct efx_nic *efx = net_dev->priv;
+ struct efx_nic *efx = netdev_priv(net_dev);
strlcpy(info->driver, EFX_DRIVER_NAME, sizeof(info->driver));
strlcpy(info->version, EFX_DRIVER_VERSION, sizeof(info->version));
@@ -376,7 +376,7 @@ static int efx_ethtool_get_stats_count(struct net_device *net_dev)
static int efx_ethtool_self_test_count(struct net_device *net_dev)
{
- struct efx_nic *efx = net_dev->priv;
+ struct efx_nic *efx = netdev_priv(net_dev);
return efx_ethtool_fill_self_tests(efx, NULL, NULL, NULL);
}
@@ -384,7 +384,7 @@ static int efx_ethtool_self_test_count(struct net_device *net_dev)
static void efx_ethtool_get_strings(struct net_device *net_dev,
u32 string_set, u8 *strings)
{
- struct efx_nic *efx = net_dev->priv;
+ struct efx_nic *efx = netdev_priv(net_dev);
struct ethtool_string *ethtool_strings =
(struct ethtool_string *)strings;
int i;
@@ -410,7 +410,7 @@ static void efx_ethtool_get_stats(struct net_device *net_dev,
struct ethtool_stats *stats,
u64 *data)
{
- struct efx_nic *efx = net_dev->priv;
+ struct efx_nic *efx = netdev_priv(net_dev);
struct efx_mac_stats *mac_stats = &efx->mac_stats;
struct efx_ethtool_stat *stat;
struct efx_channel *channel;
@@ -460,7 +460,7 @@ static int efx_ethtool_set_tso(struct net_device *net_dev, u32 enable)
static int efx_ethtool_set_tx_csum(struct net_device *net_dev, u32 enable)
{
- struct efx_nic *efx = net_dev->priv;
+ struct efx_nic *efx = netdev_priv(net_dev);
int rc;
rc = ethtool_op_set_tx_csum(net_dev, enable);
@@ -483,7 +483,7 @@ static int efx_ethtool_set_tx_csum(struct net_device *net_dev, u32 enable)
static int efx_ethtool_set_rx_csum(struct net_device *net_dev, u32 enable)
{
- struct efx_nic *efx = net_dev->priv;
+ struct efx_nic *efx = netdev_priv(net_dev);
/* No way to stop the hardware doing the checks; we just
* ignore the result.
@@ -495,7 +495,7 @@ static int efx_ethtool_set_rx_csum(struct net_device *net_dev, u32 enable)
static u32 efx_ethtool_get_rx_csum(struct net_device *net_dev)
{
- struct efx_nic *efx = net_dev->priv;
+ struct efx_nic *efx = netdev_priv(net_dev);
return efx->rx_checksum_enabled;
}
@@ -503,7 +503,7 @@ static u32 efx_ethtool_get_rx_csum(struct net_device *net_dev)
static void efx_ethtool_self_test(struct net_device *net_dev,
struct ethtool_test *test, u64 *data)
{
- struct efx_nic *efx = net_dev->priv;
+ struct efx_nic *efx = netdev_priv(net_dev);
struct efx_self_tests efx_tests;
int offline, already_up;
int rc;
@@ -561,14 +561,14 @@ static void efx_ethtool_self_test(struct net_device *net_dev,
/* Restart autonegotiation */
static int efx_ethtool_nway_reset(struct net_device *net_dev)
{
- struct efx_nic *efx = net_dev->priv;
+ struct efx_nic *efx = netdev_priv(net_dev);
return mii_nway_restart(&efx->mii);
}
static u32 efx_ethtool_get_link(struct net_device *net_dev)
{
- struct efx_nic *efx = net_dev->priv;
+ struct efx_nic *efx = netdev_priv(net_dev);
return efx->link_up;
}
@@ -576,7 +576,7 @@ static u32 efx_ethtool_get_link(struct net_device *net_dev)
static int efx_ethtool_get_coalesce(struct net_device *net_dev,
struct ethtool_coalesce *coalesce)
{
- struct efx_nic *efx = net_dev->priv;
+ struct efx_nic *efx = netdev_priv(net_dev);
struct efx_tx_queue *tx_queue;
struct efx_rx_queue *rx_queue;
struct efx_channel *channel;
@@ -614,7 +614,7 @@ static int efx_ethtool_get_coalesce(struct net_device *net_dev,
static int efx_ethtool_set_coalesce(struct net_device *net_dev,
struct ethtool_coalesce *coalesce)
{
- struct efx_nic *efx = net_dev->priv;
+ struct efx_nic *efx = netdev_priv(net_dev);
struct efx_channel *channel;
struct efx_tx_queue *tx_queue;
unsigned tx_usecs, rx_usecs;
@@ -657,7 +657,7 @@ static int efx_ethtool_set_coalesce(struct net_device *net_dev,
static int efx_ethtool_set_pauseparam(struct net_device *net_dev,
struct ethtool_pauseparam *pause)
{
- struct efx_nic *efx = net_dev->priv;
+ struct efx_nic *efx = netdev_priv(net_dev);
enum efx_fc_type flow_control = efx->flow_control;
int rc;
@@ -680,7 +680,7 @@ static int efx_ethtool_set_pauseparam(struct net_device *net_dev,
static void efx_ethtool_get_pauseparam(struct net_device *net_dev,
struct ethtool_pauseparam *pause)
{
- struct efx_nic *efx = net_dev->priv;
+ struct efx_nic *efx = netdev_priv(net_dev);
pause->rx_pause = (efx->flow_control & EFX_FC_RX) ? 1 : 0;
pause->tx_pause = (efx->flow_control & EFX_FC_TX) ? 1 : 0;
diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c
index 9138ee5..c7aa2f6 100644
--- a/drivers/net/sfc/falcon.c
+++ b/drivers/net/sfc/falcon.c
@@ -1951,7 +1951,7 @@ static int falcon_gmii_wait(struct efx_nic *efx)
static void falcon_mdio_write(struct net_device *net_dev, int phy_id,
int addr, int value)
{
- struct efx_nic *efx = net_dev->priv;
+ struct efx_nic *efx = netdev_priv(net_dev);
unsigned int phy_id2 = phy_id & FALCON_PHY_ID_ID_MASK;
efx_oword_t reg;
@@ -2019,7 +2019,7 @@ static void falcon_mdio_write(struct net_device *net_dev, int phy_id,
* could be read, -1 will be returned. */
static int falcon_mdio_read(struct net_device *net_dev, int phy_id, int addr)
{
- struct efx_nic *efx = net_dev->priv;
+ struct efx_nic *efx = netdev_priv(net_dev);
unsigned int phy_addr = phy_id & FALCON_PHY_ID_ID_MASK;
efx_oword_t reg;
int value = -1;
diff --git a/drivers/net/sfc/tx.c b/drivers/net/sfc/tx.c
index 5e8374a..2a09101 100644
--- a/drivers/net/sfc/tx.c
+++ b/drivers/net/sfc/tx.c
@@ -367,7 +367,7 @@ inline int efx_xmit(struct efx_nic *efx,
*/
int efx_hard_start_xmit(struct sk_buff *skb, struct net_device *net_dev)
{
- struct efx_nic *efx = net_dev->priv;
+ struct efx_nic *efx = netdev_priv(net_dev);
return efx_xmit(efx, &efx->tx_queue[0], skb);
}
--
1.5.5
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 02/52] sfc: Change first parameter type of {set,clear}_bit_le() to unsigned
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
2008-09-01 11:43 ` [PATCH 01/52] sfc: Replace net_dev->priv with netdev_priv(net_dev) Ben Hutchings
@ 2008-09-01 11:43 ` Ben Hutchings
2008-09-01 11:44 ` [PATCH 03/52] sfc: Remove unused field efx_channel::reset_work Ben Hutchings
` (49 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:43 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
This means the compiler doesn't need to use real division instructions.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/net_driver.h | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/sfc/net_driver.h b/drivers/net/sfc/net_driver.h
index 219c74a..ab318f7 100644
--- a/drivers/net/sfc/net_driver.h
+++ b/drivers/net/sfc/net_driver.h
@@ -886,13 +886,13 @@ static inline struct efx_rx_buffer *efx_rx_buffer(struct efx_rx_queue *rx_queue,
}
/* Set bit in a little-endian bitfield */
-static inline void set_bit_le(int nr, unsigned char *addr)
+static inline void set_bit_le(unsigned nr, unsigned char *addr)
{
addr[nr / 8] |= (1 << (nr % 8));
}
/* Clear bit in a little-endian bitfield */
-static inline void clear_bit_le(int nr, unsigned char *addr)
+static inline void clear_bit_le(unsigned nr, unsigned char *addr)
{
addr[nr / 8] &= ~(1 << (nr % 8));
}
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 03/52] sfc: Remove unused field efx_channel::reset_work
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
2008-09-01 11:43 ` [PATCH 01/52] sfc: Replace net_dev->priv with netdev_priv(net_dev) Ben Hutchings
2008-09-01 11:43 ` [PATCH 02/52] sfc: Change first parameter type of {set,clear}_bit_le() to unsigned Ben Hutchings
@ 2008-09-01 11:44 ` Ben Hutchings
2008-09-01 11:44 ` [PATCH 04/52] sfc: Use separate hardware TX queues to select checksum generation Ben Hutchings
` (48 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:44 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
From: Steve Hodgson <shodgson@solarflare.com>
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/net_driver.h | 1 -
1 files changed, 0 insertions(+), 1 deletions(-)
diff --git a/drivers/net/sfc/net_driver.h b/drivers/net/sfc/net_driver.h
index ab318f7..628f25e 100644
--- a/drivers/net/sfc/net_driver.h
+++ b/drivers/net/sfc/net_driver.h
@@ -366,7 +366,6 @@ struct efx_channel {
unsigned int irq_moderation;
struct net_device *napi_dev;
struct napi_struct napi_str;
- struct work_struct reset_work;
int work_pending;
struct efx_special_buffer eventq;
unsigned int eventq_read_ptr;
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 04/52] sfc: Use separate hardware TX queues to select checksum generation
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (2 preceding siblings ...)
2008-09-01 11:44 ` [PATCH 03/52] sfc: Remove unused field efx_channel::reset_work Ben Hutchings
@ 2008-09-01 11:44 ` Ben Hutchings
2008-09-01 11:45 ` [PATCH 05/52] sfc: Avoid mangling error codes in efx_test_loopback() Ben Hutchings
` (47 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:44 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
Checksum generation is an attribute of our hardware TX queues, not TX
descriptors. We previously used a single queue and turned checksum
generation on or off as requested through ethtool. However, this can
result in regenerating checksums in raw packets that should not be
modified. We now create 2 hardware TX queues with checksum generation
on or off. They are presented to the net core as one queue since it
does not know how to select between them.
The self-test verifies that a bad checksum is unaltered on the queue
with checksum generation off.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/efx.c | 25 +++++++---------------
drivers/net/sfc/ethtool.c | 45 +----------------------------------------
drivers/net/sfc/falcon.c | 11 +++++----
drivers/net/sfc/net_driver.h | 21 ++++++++-----------
drivers/net/sfc/selftest.c | 11 ++++++++-
drivers/net/sfc/selftest.h | 4 +-
drivers/net/sfc/tx.c | 23 +++++++++++----------
7 files changed, 48 insertions(+), 92 deletions(-)
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c
index 4253980..2a23005 100644
--- a/drivers/net/sfc/efx.c
+++ b/drivers/net/sfc/efx.c
@@ -923,22 +923,13 @@ static void efx_select_used(struct efx_nic *efx)
struct efx_rx_queue *rx_queue;
int i;
- /* TX queues. One per port per channel with TX capability
- * (more than one per port won't work on Linux, due to out
- * of order issues... but will be fine on Solaris)
- */
- tx_queue = &efx->tx_queue[0];
-
- /* Perform this for each channel with TX capabilities.
- * At the moment, we only support a single TX queue
- */
- tx_queue->used = 1;
- if ((!EFX_INT_MODE_USE_MSI(efx)) && separate_tx_and_rx_channels)
- tx_queue->channel = &efx->channel[1];
- else
- tx_queue->channel = &efx->channel[0];
- tx_queue->channel->used_flags |= EFX_USED_BY_TX;
- tx_queue++;
+ efx_for_each_tx_queue(tx_queue, efx) {
+ if (!EFX_INT_MODE_USE_MSI(efx) && separate_tx_and_rx_channels)
+ tx_queue->channel = &efx->channel[1];
+ else
+ tx_queue->channel = &efx->channel[0];
+ tx_queue->channel->used_flags |= EFX_USED_BY_TX;
+ }
/* RX queues. Each has a dedicated channel. */
for (i = 0; i < EFX_MAX_RX_QUEUES; i++) {
@@ -1881,7 +1872,7 @@ static int efx_init_struct(struct efx_nic *efx, struct efx_nic_type *type,
channel->evqnum = i;
channel->work_pending = 0;
}
- for (i = 0; i < EFX_MAX_TX_QUEUES; i++) {
+ for (i = 0; i < EFX_TX_QUEUE_COUNT; i++) {
tx_queue = &efx->tx_queue[i];
tx_queue->efx = efx;
tx_queue->queue = i;
diff --git a/drivers/net/sfc/ethtool.c b/drivers/net/sfc/ethtool.c
index 8a15be6..ccd82f1 100644
--- a/drivers/net/sfc/ethtool.c
+++ b/drivers/net/sfc/ethtool.c
@@ -32,8 +32,6 @@ const char *efx_loopback_mode_names[] = {
[LOOPBACK_NETWORK] = "NETWORK",
};
-static int efx_ethtool_set_tx_csum(struct net_device *net_dev, u32 enable);
-
struct ethtool_string {
char name[ETH_GSTRING_LEN];
};
@@ -442,45 +440,6 @@ static void efx_ethtool_get_stats(struct net_device *net_dev,
}
}
-static int efx_ethtool_set_tso(struct net_device *net_dev, u32 enable)
-{
- int rc;
-
- /* Our TSO requires TX checksumming, so force TX checksumming
- * on when TSO is enabled.
- */
- if (enable) {
- rc = efx_ethtool_set_tx_csum(net_dev, 1);
- if (rc)
- return rc;
- }
-
- return ethtool_op_set_tso(net_dev, enable);
-}
-
-static int efx_ethtool_set_tx_csum(struct net_device *net_dev, u32 enable)
-{
- struct efx_nic *efx = netdev_priv(net_dev);
- int rc;
-
- rc = ethtool_op_set_tx_csum(net_dev, enable);
- if (rc)
- return rc;
-
- efx_flush_queues(efx);
-
- /* Our TSO requires TX checksumming, so disable TSO when
- * checksumming is disabled
- */
- if (!enable) {
- rc = efx_ethtool_set_tso(net_dev, 0);
- if (rc)
- return rc;
- }
-
- return 0;
-}
-
static int efx_ethtool_set_rx_csum(struct net_device *net_dev, u32 enable)
{
struct efx_nic *efx = netdev_priv(net_dev);
@@ -701,11 +660,11 @@ struct ethtool_ops efx_ethtool_ops = {
.get_rx_csum = efx_ethtool_get_rx_csum,
.set_rx_csum = efx_ethtool_set_rx_csum,
.get_tx_csum = ethtool_op_get_tx_csum,
- .set_tx_csum = efx_ethtool_set_tx_csum,
+ .set_tx_csum = ethtool_op_set_tx_csum,
.get_sg = ethtool_op_get_sg,
.set_sg = ethtool_op_set_sg,
.get_tso = ethtool_op_get_tso,
- .set_tso = efx_ethtool_set_tso,
+ .set_tso = ethtool_op_set_tso,
.get_flags = ethtool_op_get_flags,
.set_flags = ethtool_op_set_flags,
.self_test_count = efx_ethtool_self_test_count,
diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c
index c7aa2f6..b73f1ea 100644
--- a/drivers/net/sfc/falcon.c
+++ b/drivers/net/sfc/falcon.c
@@ -474,9 +474,9 @@ int falcon_init_tx(struct efx_tx_queue *tx_queue)
TX_NON_IP_DROP_DIS_B0, 1);
if (falcon_rev(efx) >= FALCON_REV_B0) {
- int csum = !(efx->net_dev->features & NETIF_F_IP_CSUM);
- EFX_SET_OWORD_FIELD(tx_desc_ptr, TX_IP_CHKSM_DIS_B0, csum);
- EFX_SET_OWORD_FIELD(tx_desc_ptr, TX_TCP_CHKSM_DIS_B0, csum);
+ int csum = tx_queue->queue == EFX_TX_QUEUE_OFFLOAD_CSUM;
+ EFX_SET_OWORD_FIELD(tx_desc_ptr, TX_IP_CHKSM_DIS_B0, !csum);
+ EFX_SET_OWORD_FIELD(tx_desc_ptr, TX_TCP_CHKSM_DIS_B0, !csum);
}
falcon_write_table(efx, &tx_desc_ptr, efx->type->txd_ptr_tbl_base,
@@ -485,10 +485,11 @@ int falcon_init_tx(struct efx_tx_queue *tx_queue)
if (falcon_rev(efx) < FALCON_REV_B0) {
efx_oword_t reg;
- BUG_ON(tx_queue->queue >= 128); /* HW limit */
+ /* Only 128 bits in this register */
+ BUILD_BUG_ON(EFX_TX_QUEUE_COUNT >= 128);
falcon_read(efx, ®, TX_CHKSM_CFG_REG_KER_A1);
- if (efx->net_dev->features & NETIF_F_IP_CSUM)
+ if (tx_queue->queue == EFX_TX_QUEUE_OFFLOAD_CSUM)
clear_bit_le(tx_queue->queue, (void *)®);
else
set_bit_le(tx_queue->queue, (void *)®);
diff --git a/drivers/net/sfc/net_driver.h b/drivers/net/sfc/net_driver.h
index 628f25e..f539e2e 100644
--- a/drivers/net/sfc/net_driver.h
+++ b/drivers/net/sfc/net_driver.h
@@ -88,9 +88,12 @@ do {if (net_ratelimit()) EFX_LOG(efx, fmt, ##args); } while (0)
**************************************************************************/
#define EFX_MAX_CHANNELS 32
-#define EFX_MAX_TX_QUEUES 1
#define EFX_MAX_RX_QUEUES EFX_MAX_CHANNELS
+#define EFX_TX_QUEUE_OFFLOAD_CSUM 0
+#define EFX_TX_QUEUE_NO_CSUM 1
+#define EFX_TX_QUEUE_COUNT 2
+
/**
* struct efx_special_buffer - An Efx special buffer
* @addr: CPU base address of the buffer
@@ -156,7 +159,6 @@ struct efx_tx_buffer {
*
* @efx: The associated Efx NIC
* @queue: DMA queue number
- * @used: Queue is used by net driver
* @channel: The associated channel
* @buffer: The software buffer ring
* @txd: The hardware descriptor ring
@@ -188,7 +190,6 @@ struct efx_tx_queue {
/* Members which don't change on the fast path */
struct efx_nic *efx ____cacheline_aligned_in_smp;
int queue;
- int used;
struct efx_channel *channel;
struct efx_nic *nic;
struct efx_tx_buffer *buffer;
@@ -699,7 +700,7 @@ struct efx_nic {
enum nic_state state;
enum reset_type reset_pending;
- struct efx_tx_queue tx_queue[EFX_MAX_TX_QUEUES];
+ struct efx_tx_queue tx_queue[EFX_TX_QUEUE_COUNT];
struct efx_rx_queue rx_queue[EFX_MAX_RX_QUEUES];
struct efx_channel channel[EFX_MAX_CHANNELS];
@@ -840,19 +841,15 @@ struct efx_nic_type {
/* Iterate over all used TX queues */
#define efx_for_each_tx_queue(_tx_queue, _efx) \
for (_tx_queue = &_efx->tx_queue[0]; \
- _tx_queue < &_efx->tx_queue[EFX_MAX_TX_QUEUES]; \
- _tx_queue++) \
- if (!_tx_queue->used) \
- continue; \
- else
+ _tx_queue < &_efx->tx_queue[EFX_TX_QUEUE_COUNT]; \
+ _tx_queue++)
/* Iterate over all TX queues belonging to a channel */
#define efx_for_each_channel_tx_queue(_tx_queue, _channel) \
for (_tx_queue = &_channel->efx->tx_queue[0]; \
- _tx_queue < &_channel->efx->tx_queue[EFX_MAX_TX_QUEUES]; \
+ _tx_queue < &_channel->efx->tx_queue[EFX_TX_QUEUE_COUNT]; \
_tx_queue++) \
- if ((!_tx_queue->used) || \
- (_tx_queue->channel != _channel)) \
+ if (_tx_queue->channel != _channel) \
continue; \
else
diff --git a/drivers/net/sfc/selftest.c b/drivers/net/sfc/selftest.c
index 3b2de9f..0a47786 100644
--- a/drivers/net/sfc/selftest.c
+++ b/drivers/net/sfc/selftest.c
@@ -63,6 +63,10 @@ struct efx_selftest_state {
int flush;
int packet_count;
struct sk_buff **skbs;
+
+ /* Checksums are being offloaded */
+ int offload_csum;
+
atomic_t rx_good;
atomic_t rx_bad;
struct efx_loopback_payload payload;
@@ -292,8 +296,9 @@ void efx_loopback_rx_packet(struct efx_nic *efx,
received = (struct efx_loopback_payload *) buf_ptr;
received->ip.saddr = payload->ip.saddr;
- received->ip.check = payload->ip.check;
-
+ if (state->offload_csum)
+ received->ip.check = payload->ip.check;
+
/* Check that header exists */
if (pkt_len < sizeof(received->header)) {
EFX_ERR(efx, "saw runt RX packet (length %d) in %s loopback "
@@ -634,6 +639,8 @@ static int efx_test_loopbacks(struct efx_nic *efx,
/* Test every TX queue */
efx_for_each_tx_queue(tx_queue, efx) {
+ state->offload_csum = (tx_queue->queue ==
+ EFX_TX_QUEUE_OFFLOAD_CSUM);
rc |= efx_test_loopback(tx_queue,
&tests->loopback[mode]);
if (rc)
diff --git a/drivers/net/sfc/selftest.h b/drivers/net/sfc/selftest.h
index f6999c2..cd59f00 100644
--- a/drivers/net/sfc/selftest.h
+++ b/drivers/net/sfc/selftest.h
@@ -18,8 +18,8 @@
*/
struct efx_loopback_self_tests {
- int tx_sent[EFX_MAX_TX_QUEUES];
- int tx_done[EFX_MAX_TX_QUEUES];
+ int tx_sent[EFX_TX_QUEUE_COUNT];
+ int tx_done[EFX_TX_QUEUE_COUNT];
int rx_good;
int rx_bad;
};
diff --git a/drivers/net/sfc/tx.c b/drivers/net/sfc/tx.c
index 2a09101..e5e0bab 100644
--- a/drivers/net/sfc/tx.c
+++ b/drivers/net/sfc/tx.c
@@ -368,7 +368,14 @@ inline int efx_xmit(struct efx_nic *efx,
int efx_hard_start_xmit(struct sk_buff *skb, struct net_device *net_dev)
{
struct efx_nic *efx = netdev_priv(net_dev);
- return efx_xmit(efx, &efx->tx_queue[0], skb);
+ struct efx_tx_queue *tx_queue;
+
+ if (likely(skb->ip_summed == CHECKSUM_PARTIAL))
+ tx_queue = &efx->tx_queue[EFX_TX_QUEUE_OFFLOAD_CSUM];
+ else
+ tx_queue = &efx->tx_queue[EFX_TX_QUEUE_NO_CSUM];
+
+ return efx_xmit(efx, tx_queue, skb);
}
void efx_xmit_done(struct efx_tx_queue *tx_queue, unsigned int index)
@@ -412,26 +419,21 @@ int efx_probe_tx_queue(struct efx_tx_queue *tx_queue)
/* Allocate software ring */
txq_size = (efx->type->txd_ring_mask + 1) * sizeof(*tx_queue->buffer);
tx_queue->buffer = kzalloc(txq_size, GFP_KERNEL);
- if (!tx_queue->buffer) {
- rc = -ENOMEM;
- goto fail1;
- }
+ if (!tx_queue->buffer)
+ return -ENOMEM;
for (i = 0; i <= efx->type->txd_ring_mask; ++i)
tx_queue->buffer[i].continuation = 1;
/* Allocate hardware ring */
rc = falcon_probe_tx(tx_queue);
if (rc)
- goto fail2;
+ goto fail;
return 0;
- fail2:
+ fail:
kfree(tx_queue->buffer);
tx_queue->buffer = NULL;
- fail1:
- tx_queue->used = 0;
-
return rc;
}
@@ -494,7 +496,6 @@ void efx_remove_tx_queue(struct efx_tx_queue *tx_queue)
kfree(tx_queue->buffer);
tx_queue->buffer = NULL;
- tx_queue->used = 0;
}
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 05/52] sfc: Avoid mangling error codes in efx_test_loopback()
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (3 preceding siblings ...)
2008-09-01 11:44 ` [PATCH 04/52] sfc: Use separate hardware TX queues to select checksum generation Ben Hutchings
@ 2008-09-01 11:45 ` Ben Hutchings
2008-09-01 11:45 ` [PATCH 06/52] sfc: Reduce delays in SFE4001 initialisation Ben Hutchings
` (46 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:45 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
efx_test_loopback() used "|" to combine the results of the RX and TX
phases. If both phases fail with different error codes, this results
in a bogus error code.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/selftest.c | 12 ++++++------
1 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/net/sfc/selftest.c b/drivers/net/sfc/selftest.c
index 0a47786..c79ddce 100644
--- a/drivers/net/sfc/selftest.c
+++ b/drivers/net/sfc/selftest.c
@@ -514,7 +514,7 @@ efx_test_loopback(struct efx_tx_queue *tx_queue,
struct efx_nic *efx = tx_queue->efx;
struct efx_selftest_state *state = efx->loopback_selftest;
struct efx_channel *channel;
- int i, rc = 0;
+ int i, tx_rc, rx_rc;
for (i = 0; i < loopback_test_level; i++) {
/* Determine how many packets to send */
@@ -531,7 +531,7 @@ efx_test_loopback(struct efx_tx_queue *tx_queue,
state->packet_count);
efx_iterate_state(efx);
- rc = efx_tx_loopback(tx_queue);
+ tx_rc = efx_tx_loopback(tx_queue);
/* NAPI polling is not enabled, so process channels synchronously */
schedule_timeout_uninterruptible(HZ / 50);
@@ -540,14 +540,14 @@ efx_test_loopback(struct efx_tx_queue *tx_queue,
efx_process_channel_now(channel);
}
- rc |= efx_rx_loopback(tx_queue, lb_tests);
+ rx_rc = efx_rx_loopback(tx_queue, lb_tests);
kfree(state->skbs);
- if (rc) {
+ if (tx_rc || rx_rc) {
/* Wait a while to ensure there are no packets
* floating around after a failure. */
schedule_timeout_uninterruptible(HZ / 10);
- return rc;
+ return tx_rc ? tx_rc : rx_rc;
}
}
@@ -555,7 +555,7 @@ efx_test_loopback(struct efx_tx_queue *tx_queue,
"of %d packets\n", tx_queue->queue, LOOPBACK_MODE(efx),
state->packet_count);
- return rc;
+ return 0;
}
static int efx_test_loopbacks(struct efx_nic *efx,
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 06/52] sfc: Reduce delays in SFE4001 initialisation
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (4 preceding siblings ...)
2008-09-01 11:45 ` [PATCH 05/52] sfc: Avoid mangling error codes in efx_test_loopback() Ben Hutchings
@ 2008-09-01 11:45 ` Ben Hutchings
2008-09-01 11:46 ` [PATCH 07/52] sfc: Remove mistaken hardware workaround Ben Hutchings
` (45 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:45 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
Currently the board initialisation includes 2 delays of 1 second each.
Usually it is unnecessary to wait that long, so check before doing so.
Correct some of the comments and log messages while we're here.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/sfe4001.c | 57 +++++++++++++++++++++++++++-----------------
1 files changed, 35 insertions(+), 22 deletions(-)
diff --git a/drivers/net/sfc/sfe4001.c b/drivers/net/sfc/sfe4001.c
index b278495..f927281 100644
--- a/drivers/net/sfc/sfe4001.c
+++ b/drivers/net/sfc/sfe4001.c
@@ -145,7 +145,7 @@ MODULE_PARM_DESC(phy_flash_cfg,
int sfe4001_init(struct efx_nic *efx)
{
struct i2c_client *hwmon_client, *ioexp_client;
- unsigned int count;
+ unsigned int i, j;
int rc;
u8 out;
efx_dword_t reg;
@@ -209,17 +209,24 @@ int sfe4001_init(struct efx_nic *efx)
if (rc)
goto fail_on;
- /* Turn all power off then wait 1 sec. This ensures PHY is reset */
+ /* If PHY power is on, turn it all off and wait 1 second to
+ * ensure a full reset.
+ */
+ rc = i2c_smbus_read_byte_data(ioexp_client, P0_OUT);
+ if (rc < 0)
+ goto fail_on;
out = 0xff & ~((0 << P0_EN_1V2_LBN) | (0 << P0_EN_2V5_LBN) |
(0 << P0_EN_3V3X_LBN) | (0 << P0_EN_5V_LBN) |
(0 << P0_EN_1V0X_LBN));
- rc = i2c_smbus_write_byte_data(ioexp_client, P0_OUT, out);
- if (rc)
- goto fail_on;
+ if (rc != out) {
+ EFX_INFO(efx, "power-cycling PHY\n");
+ rc = i2c_smbus_write_byte_data(ioexp_client, P0_OUT, out);
+ if (rc)
+ goto fail_on;
+ schedule_timeout_uninterruptible(HZ);
+ }
- schedule_timeout_uninterruptible(HZ);
- count = 0;
- do {
+ for (i = 0; i < 20; ++i) {
/* Turn on 1.2V, 2.5V, 3.3V and 5V power rails */
out = 0xff & ~((1 << P0_EN_1V2_LBN) | (1 << P0_EN_2V5_LBN) |
(1 << P0_EN_3V3X_LBN) | (1 << P0_EN_5V_LBN) |
@@ -238,23 +245,29 @@ int sfe4001_init(struct efx_nic *efx)
if (rc)
goto fail_on;
- EFX_INFO(efx, "waiting for power (attempt %d)...\n", count);
-
- schedule_timeout_uninterruptible(HZ);
-
- /* Check DSP is powered */
- rc = i2c_smbus_read_byte_data(ioexp_client, P1_IN);
- if (rc < 0)
- goto fail_on;
- if (rc & (1 << P1_AFE_PWD_LBN))
- goto done;
+ EFX_INFO(efx, "waiting for DSP boot (attempt %d)...\n", i);
- /* DSP doesn't look powered in flash config mode */
- if (sfe4001_phy_flash_cfg)
+ /* In flash config mode, DSP does not turn on AFE, so
+ * just wait 1 second.
+ */
+ if (sfe4001_phy_flash_cfg) {
+ schedule_timeout_uninterruptible(HZ);
goto done;
- } while (++count < 20);
+ }
+
+ for (j = 0; j < 10; ++j) {
+ msleep(100);
+
+ /* Check DSP has asserted AFE power line */
+ rc = i2c_smbus_read_byte_data(ioexp_client, P1_IN);
+ if (rc < 0)
+ goto fail_on;
+ if (rc & (1 << P1_AFE_PWD_LBN))
+ goto done;
+ }
+ }
- EFX_INFO(efx, "timed out waiting for power\n");
+ EFX_INFO(efx, "timed out waiting for DSP boot\n");
rc = -ETIMEDOUT;
goto fail_on;
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 07/52] sfc: Remove mistaken hardware workaround
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (5 preceding siblings ...)
2008-09-01 11:45 ` [PATCH 06/52] sfc: Reduce delays in SFE4001 initialisation Ben Hutchings
@ 2008-09-01 11:46 ` Ben Hutchings
2008-09-01 11:46 ` [PATCH 08/52] sfc: XMAC statistics fix-ups Ben Hutchings
` (44 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:46 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
We believed that some valid SNAP frames were being marked as invalid.
In fact this is not the case and no workaround is needed.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/falcon.c | 65 ++--------------------------------------
drivers/net/sfc/workarounds.h | 2 -
2 files changed, 4 insertions(+), 63 deletions(-)
diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c
index b73f1ea..f575322 100644
--- a/drivers/net/sfc/falcon.c
+++ b/drivers/net/sfc/falcon.c
@@ -848,31 +848,11 @@ static inline void falcon_handle_tx_event(struct efx_channel *channel,
}
}
-/* Check received packet's destination MAC address. */
-static int check_dest_mac(struct efx_rx_queue *rx_queue,
- const efx_qword_t *event)
-{
- struct efx_rx_buffer *rx_buf;
- struct efx_nic *efx = rx_queue->efx;
- int rx_ev_desc_ptr;
- struct ethhdr *eh;
-
- if (efx->promiscuous)
- return 1;
-
- rx_ev_desc_ptr = EFX_QWORD_FIELD(*event, RX_EV_DESC_PTR);
- rx_buf = efx_rx_buffer(rx_queue, rx_ev_desc_ptr);
- eh = (struct ethhdr *)rx_buf->data;
- if (memcmp(eh->h_dest, efx->net_dev->dev_addr, ETH_ALEN))
- return 0;
- return 1;
-}
-
/* Detect errors included in the rx_evt_pkt_ok bit. */
static void falcon_handle_rx_not_ok(struct efx_rx_queue *rx_queue,
const efx_qword_t *event,
unsigned *rx_ev_pkt_ok,
- int *discard, int byte_count)
+ int *discard)
{
struct efx_nic *efx = rx_queue->efx;
unsigned rx_ev_buf_owner_id_err, rx_ev_ip_hdr_chksum_err;
@@ -880,7 +860,6 @@ static void falcon_handle_rx_not_ok(struct efx_rx_queue *rx_queue,
unsigned rx_ev_frm_trunc, rx_ev_drib_nib, rx_ev_tobe_disc;
unsigned rx_ev_pkt_type, rx_ev_other_err, rx_ev_pause_frm;
unsigned rx_ev_ip_frag_err, rx_ev_hdr_type, rx_ev_mcast_pkt;
- int snap, non_ip;
rx_ev_hdr_type = EFX_QWORD_FIELD(*event, RX_EV_HDR_TYPE);
rx_ev_mcast_pkt = EFX_QWORD_FIELD(*event, RX_EV_MCAST_PKT);
@@ -904,41 +883,6 @@ static void falcon_handle_rx_not_ok(struct efx_rx_queue *rx_queue,
rx_ev_buf_owner_id_err | rx_ev_eth_crc_err |
rx_ev_frm_trunc | rx_ev_ip_hdr_chksum_err);
- snap = (rx_ev_pkt_type == RX_EV_PKT_TYPE_LLC_DECODE) ||
- (rx_ev_pkt_type == RX_EV_PKT_TYPE_VLAN_LLC_DECODE);
- non_ip = (rx_ev_hdr_type == RX_EV_HDR_TYPE_NON_IP_DECODE);
-
- /* SFC bug 5475/8970: The Falcon XMAC incorrectly calculates the
- * length field of an LLC frame, which sets TOBE_DISC. We could set
- * PASS_LEN_ERR, but we want the MAC to filter out short frames (to
- * protect the RX block).
- *
- * bug5475 - LLC/SNAP: Falcon identifies SNAP packets.
- * bug8970 - LLC/noSNAP: Falcon does not provide an LLC flag.
- * LLC can't encapsulate IP, so by definition
- * these packets are NON_IP.
- *
- * Unicast mismatch will also cause TOBE_DISC, so the driver needs
- * to check this.
- */
- if (EFX_WORKAROUND_5475(efx) && rx_ev_tobe_disc && (snap || non_ip)) {
- /* If all the other flags are zero then we can state the
- * entire packet is ok, which will flag to the kernel not
- * to recalculate checksums.
- */
- if (!(non_ip | rx_ev_other_err | rx_ev_pause_frm))
- *rx_ev_pkt_ok = 1;
-
- rx_ev_tobe_disc = 0;
-
- /* TOBE_DISC is set for unicast mismatch. But given that
- * we can't trust TOBE_DISC here, we must validate the dest
- * MAC address ourselves.
- */
- if (!rx_ev_mcast_pkt && !check_dest_mac(rx_queue, event))
- rx_ev_tobe_disc = 1;
- }
-
/* Count errors that are not in MAC stats. */
if (rx_ev_frm_trunc)
++rx_queue->channel->n_rx_frm_trunc;
@@ -962,7 +906,7 @@ static void falcon_handle_rx_not_ok(struct efx_rx_queue *rx_queue,
#ifdef EFX_ENABLE_DEBUG
if (rx_ev_other_err) {
EFX_INFO_RL(efx, " RX queue %d unexpected RX event "
- EFX_QWORD_FMT "%s%s%s%s%s%s%s%s%s\n",
+ EFX_QWORD_FMT "%s%s%s%s%s%s%s%s\n",
rx_queue->queue, EFX_QWORD_VAL(*event),
rx_ev_buf_owner_id_err ? " [OWNER_ID_ERR]" : "",
rx_ev_ip_hdr_chksum_err ?
@@ -973,8 +917,7 @@ static void falcon_handle_rx_not_ok(struct efx_rx_queue *rx_queue,
rx_ev_frm_trunc ? " [FRM_TRUNC]" : "",
rx_ev_drib_nib ? " [DRIB_NIB]" : "",
rx_ev_tobe_disc ? " [TOBE_DISC]" : "",
- rx_ev_pause_frm ? " [PAUSE]" : "",
- snap ? " [SNAP/LLC]" : "");
+ rx_ev_pause_frm ? " [PAUSE]" : "");
}
#endif
@@ -1041,7 +984,7 @@ static inline int falcon_handle_rx_event(struct efx_channel *channel,
checksummed = RX_EV_HDR_TYPE_HAS_CHECKSUMS(rx_ev_hdr_type);
} else {
falcon_handle_rx_not_ok(rx_queue, event, &rx_ev_pkt_ok,
- &discard, rx_ev_byte_cnt);
+ &discard);
checksummed = 0;
}
diff --git a/drivers/net/sfc/workarounds.h b/drivers/net/sfc/workarounds.h
index 35ab19c..a824f59 100644
--- a/drivers/net/sfc/workarounds.h
+++ b/drivers/net/sfc/workarounds.h
@@ -20,8 +20,6 @@
/* XAUI resets if link not detected */
#define EFX_WORKAROUND_5147 EFX_WORKAROUND_ALWAYS
-/* SNAP frames have TOBE_DISC set */
-#define EFX_WORKAROUND_5475 EFX_WORKAROUND_ALWAYS
/* RX PCIe double split performance issue */
#define EFX_WORKAROUND_7575 EFX_WORKAROUND_ALWAYS
/* TX pkt parser problem with <= 16 byte TXes */
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 08/52] sfc: XMAC statistics fix-ups
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (6 preceding siblings ...)
2008-09-01 11:46 ` [PATCH 07/52] sfc: Remove mistaken hardware workaround Ben Hutchings
@ 2008-09-01 11:46 ` Ben Hutchings
2008-09-01 11:46 ` [PATCH 09/52] sfc: Remove inclusion of workarounds.h from efx.c Ben Hutchings
` (43 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:46 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
Exclude assumed size of RX control frames from rx_bad_bytes.
Exclude assumed size of TX control frames from tx_good_bytes for
consistency with rx_good_bytes.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/falcon_xmac.c | 6 ++++--
1 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/net/sfc/falcon_xmac.c b/drivers/net/sfc/falcon_xmac.c
index 55c0d97..ab114b4 100644
--- a/drivers/net/sfc/falcon_xmac.c
+++ b/drivers/net/sfc/falcon_xmac.c
@@ -554,9 +554,11 @@ void falcon_update_stats_xmac(struct efx_nic *efx)
/* Update derived statistics */
mac_stats->tx_good_bytes =
- (mac_stats->tx_bytes - mac_stats->tx_bad_bytes);
+ (mac_stats->tx_bytes - mac_stats->tx_bad_bytes -
+ mac_stats->tx_control * 64);
mac_stats->rx_bad_bytes =
- (mac_stats->rx_bytes - mac_stats->rx_good_bytes);
+ (mac_stats->rx_bytes - mac_stats->rx_good_bytes -
+ mac_stats->rx_control * 64);
}
int falcon_check_xmac(struct efx_nic *efx)
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 09/52] sfc: Remove inclusion of workarounds.h from efx.c
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (7 preceding siblings ...)
2008-09-01 11:46 ` [PATCH 08/52] sfc: XMAC statistics fix-ups Ben Hutchings
@ 2008-09-01 11:46 ` Ben Hutchings
2008-09-01 11:46 ` [PATCH 10/52] sfc: Reverse the XOFF/XON pause frame control fifo thresholds Ben Hutchings
` (42 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:46 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
efx.c does not use hardware workarounds.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/efx.c | 1 -
1 files changed, 0 insertions(+), 1 deletions(-)
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c
index 2a23005..d3b76bd 100644
--- a/drivers/net/sfc/efx.c
+++ b/drivers/net/sfc/efx.c
@@ -28,7 +28,6 @@
#include "efx.h"
#include "mdio_10g.h"
#include "falcon.h"
-#include "workarounds.h"
#include "mac.h"
#define EFX_MAX_MTU (9 * 1024)
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 10/52] sfc: Reverse the XOFF/XON pause frame control fifo thresholds
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (8 preceding siblings ...)
2008-09-01 11:46 ` [PATCH 09/52] sfc: Remove inclusion of workarounds.h from efx.c Ben Hutchings
@ 2008-09-01 11:46 ` Ben Hutchings
2008-09-01 11:46 ` [PATCH 11/52] sfc: Reduce log level for XGXS lane status Ben Hutchings
` (41 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:46 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
These were clearly bogus.
From: Steve Hodgson <shodgson@solarflare.com>
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/falcon.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c
index f575322..8ee63da 100644
--- a/drivers/net/sfc/falcon.c
+++ b/drivers/net/sfc/falcon.c
@@ -2585,8 +2585,8 @@ int falcon_init_nic(struct efx_nic *efx)
rx_xoff_thresh_bytes : efx->type->rx_xoff_thresh);
EFX_SET_OWORD_FIELD_VER(efx, temp, RX_XOFF_MAC_TH, thresh / 256);
/* RX control FIFO thresholds [32 entries] */
- EFX_SET_OWORD_FIELD_VER(efx, temp, RX_XON_TX_TH, 25);
- EFX_SET_OWORD_FIELD_VER(efx, temp, RX_XOFF_TX_TH, 20);
+ EFX_SET_OWORD_FIELD_VER(efx, temp, RX_XON_TX_TH, 20);
+ EFX_SET_OWORD_FIELD_VER(efx, temp, RX_XOFF_TX_TH, 25);
falcon_write(efx, &temp, RX_CFG_REG_KER);
/* Set destination of both TX and RX Flush events */
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 11/52] sfc: Reduce log level for XGXS lane status
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (9 preceding siblings ...)
2008-09-01 11:46 ` [PATCH 10/52] sfc: Reverse the XOFF/XON pause frame control fifo thresholds Ben Hutchings
@ 2008-09-01 11:46 ` Ben Hutchings
2008-09-01 11:46 ` [PATCH 12/52] sfc: Self-test reporting cleanup Ben Hutchings
` (40 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:46 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
This was making noise during 10Xpress self-test.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/mdio_10g.h | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/net/sfc/mdio_10g.h b/drivers/net/sfc/mdio_10g.h
index cb99f3f..3bb6b55 100644
--- a/drivers/net/sfc/mdio_10g.h
+++ b/drivers/net/sfc/mdio_10g.h
@@ -210,7 +210,7 @@ static inline int mdio_clause45_phyxgxs_lane_sync(struct efx_nic *efx)
sync = (lane_status & (1 << MDIO_PHYXS_LANE_ALIGNED_LBN)) != 0;
if (!sync)
- EFX_INFO(efx, "XGXS lane status: %x\n", lane_status);
+ EFX_LOG(efx, "XGXS lane status: %x\n", lane_status);
return sync;
}
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 12/52] sfc: Self-test reporting cleanup
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (10 preceding siblings ...)
2008-09-01 11:46 ` [PATCH 11/52] sfc: Reduce log level for XGXS lane status Ben Hutchings
@ 2008-09-01 11:46 ` Ben Hutchings
2008-09-01 11:46 ` [PATCH 13/52] sfc: Speed up loopback self-test Ben Hutchings
` (39 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:46 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
Removed log messages that are redundant with calling functions.
Fixed bitwise or-ing of return codes.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/selftest.c | 42 ++++++++++++++++--------------------------
1 files changed, 16 insertions(+), 26 deletions(-)
diff --git a/drivers/net/sfc/selftest.c b/drivers/net/sfc/selftest.c
index c79ddce..8ad517c 100644
--- a/drivers/net/sfc/selftest.c
+++ b/drivers/net/sfc/selftest.c
@@ -566,8 +566,8 @@ static int efx_test_loopbacks(struct efx_nic *efx,
struct ethtool_cmd ecmd, ecmd_loopback;
struct efx_tx_queue *tx_queue;
enum efx_loopback_mode old_mode, mode;
- int count, rc = 0, link_up;
-
+ int count, rc, link_up;
+
rc = efx_ethtool_get_settings(efx->net_dev, &ecmd);
if (rc) {
EFX_ERR(efx, "could not get GMII settings\n");
@@ -641,8 +641,8 @@ static int efx_test_loopbacks(struct efx_nic *efx,
efx_for_each_tx_queue(tx_queue, efx) {
state->offload_csum = (tx_queue->queue ==
EFX_TX_QUEUE_OFFLOAD_CSUM);
- rc |= efx_test_loopback(tx_queue,
- &tests->loopback[mode]);
+ rc = efx_test_loopback(tx_queue,
+ &tests->loopback[mode]);
if (rc)
goto out;
}
@@ -668,22 +668,20 @@ static int efx_test_loopbacks(struct efx_nic *efx,
int efx_online_test(struct efx_nic *efx, struct efx_self_tests *tests)
{
struct efx_channel *channel;
- int rc = 0;
+ int rc;
- EFX_LOG(efx, "performing online self-tests\n");
-
- rc |= efx_test_interrupts(efx, tests);
+ rc = efx_test_interrupts(efx, tests);
+ if (rc)
+ return rc;
efx_for_each_channel(channel, efx) {
if (channel->has_interrupt)
- rc |= efx_test_eventq_irq(channel, tests);
+ rc = efx_test_eventq_irq(channel, tests);
else
- rc |= efx_test_eventq(channel, tests);
+ rc = efx_test_eventq(channel, tests);
+ if (rc)
+ return rc;
}
- rc |= efx_test_phy(efx, tests);
-
- if (rc)
- EFX_ERR(efx, "failed online self-tests\n");
-
+ rc = efx_test_phy(efx, tests);
return rc;
}
@@ -693,16 +691,12 @@ int efx_offline_test(struct efx_nic *efx,
struct efx_self_tests *tests, unsigned int loopback_modes)
{
struct efx_selftest_state *state;
- int rc = 0;
-
- EFX_LOG(efx, "performing offline self-tests\n");
+ int rc;
/* Create a selftest_state structure to hold state for the test */
state = kzalloc(sizeof(*state), GFP_KERNEL);
- if (state == NULL) {
- rc = -ENOMEM;
- goto out;
- }
+ if (state == NULL)
+ return -ENOMEM;
/* Set the port loopback_selftest member. From this point on
* all received packets will be dropped. Mark the state as
@@ -717,10 +711,6 @@ int efx_offline_test(struct efx_nic *efx,
wmb();
kfree(state);
- out:
- if (rc)
- EFX_ERR(efx, "failed offline self-tests\n");
-
return rc;
}
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 13/52] sfc: Speed up loopback self-test
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (11 preceding siblings ...)
2008-09-01 11:46 ` [PATCH 12/52] sfc: Self-test reporting cleanup Ben Hutchings
@ 2008-09-01 11:46 ` Ben Hutchings
2008-09-01 11:46 ` [PATCH 14/52] sfc: Don't leak PCI DMA maps in the TSO code when the queue fills up Ben Hutchings
` (38 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:46 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
Add efx_poll_loopback() function to test for successful completion of test.
Change efx_test_loopback() to end the test after 1 ms if
efx_poll_loopback() indicates success, and otherwise to wait for 100 ms
as before.
While we're here, rename efx_{rx,tx}_loopback() to
efx_{begin,end}_loopback() which more accurately reflect their
purpose.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/selftest.c | 44 +++++++++++++++++++++++++++++---------------
1 files changed, 29 insertions(+), 15 deletions(-)
diff --git a/drivers/net/sfc/selftest.c b/drivers/net/sfc/selftest.c
index 8ad517c..53fa4ed 100644
--- a/drivers/net/sfc/selftest.c
+++ b/drivers/net/sfc/selftest.c
@@ -400,7 +400,7 @@ static void efx_iterate_state(struct efx_nic *efx)
smp_wmb();
}
-static int efx_tx_loopback(struct efx_tx_queue *tx_queue)
+static int efx_begin_loopback(struct efx_tx_queue *tx_queue)
{
struct efx_nic *efx = tx_queue->efx;
struct efx_selftest_state *state = efx->loopback_selftest;
@@ -449,8 +449,22 @@ static int efx_tx_loopback(struct efx_tx_queue *tx_queue)
return 0;
}
-static int efx_rx_loopback(struct efx_tx_queue *tx_queue,
- struct efx_loopback_self_tests *lb_tests)
+static int efx_poll_loopback(struct efx_nic *efx)
+{
+ struct efx_selftest_state *state = efx->loopback_selftest;
+ struct efx_channel *channel;
+
+ /* NAPI polling is not enabled, so process channels
+ * synchronously */
+ efx_for_each_channel_with_interrupt(channel, efx) {
+ if (channel->work_pending)
+ efx_process_channel_now(channel);
+ }
+ return atomic_read(&state->rx_good) == state->packet_count;
+}
+
+static int efx_end_loopback(struct efx_tx_queue *tx_queue,
+ struct efx_loopback_self_tests *lb_tests)
{
struct efx_nic *efx = tx_queue->efx;
struct efx_selftest_state *state = efx->loopback_selftest;
@@ -513,8 +527,7 @@ efx_test_loopback(struct efx_tx_queue *tx_queue,
{
struct efx_nic *efx = tx_queue->efx;
struct efx_selftest_state *state = efx->loopback_selftest;
- struct efx_channel *channel;
- int i, tx_rc, rx_rc;
+ int i, begin_rc, end_rc;
for (i = 0; i < loopback_test_level; i++) {
/* Determine how many packets to send */
@@ -531,23 +544,24 @@ efx_test_loopback(struct efx_tx_queue *tx_queue,
state->packet_count);
efx_iterate_state(efx);
- tx_rc = efx_tx_loopback(tx_queue);
-
- /* NAPI polling is not enabled, so process channels synchronously */
- schedule_timeout_uninterruptible(HZ / 50);
- efx_for_each_channel_with_interrupt(channel, efx) {
- if (channel->work_pending)
- efx_process_channel_now(channel);
+ begin_rc = efx_begin_loopback(tx_queue);
+
+ /* This will normally complete very quickly, but be
+ * prepared to wait up to 100 ms. */
+ msleep(1);
+ if (!efx_poll_loopback(efx)) {
+ msleep(100);
+ efx_poll_loopback(efx);
}
- rx_rc = efx_rx_loopback(tx_queue, lb_tests);
+ end_rc = efx_end_loopback(tx_queue, lb_tests);
kfree(state->skbs);
- if (tx_rc || rx_rc) {
+ if (begin_rc || end_rc) {
/* Wait a while to ensure there are no packets
* floating around after a failure. */
schedule_timeout_uninterruptible(HZ / 10);
- return tx_rc ? tx_rc : rx_rc;
+ return begin_rc ? begin_rc : end_rc;
}
}
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 14/52] sfc: Don't leak PCI DMA maps in the TSO code when the queue fills up
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (12 preceding siblings ...)
2008-09-01 11:46 ` [PATCH 13/52] sfc: Speed up loopback self-test Ben Hutchings
@ 2008-09-01 11:46 ` Ben Hutchings
2008-09-01 11:46 ` [PATCH 15/52] sfc: Use pci_map_single() to map the skb header when doing TSO Ben Hutchings
` (37 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:46 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/tx.c | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/drivers/net/sfc/tx.c b/drivers/net/sfc/tx.c
index e5e0bab..0452ea6 100644
--- a/drivers/net/sfc/tx.c
+++ b/drivers/net/sfc/tx.c
@@ -1096,6 +1096,11 @@ static int efx_enqueue_skb_tso(struct efx_tx_queue *tx_queue,
efx_stop_queue(tx_queue->efx);
unwind:
+ /* Free the DMA mapping we were in the process of writing out */
+ if (state.ifc.unmap_len)
+ pci_unmap_page(tx_queue->efx->pci_dev, state.ifc.unmap_addr,
+ state.ifc.unmap_len, PCI_DMA_TODEVICE);
+
efx_enqueue_unwind(tx_queue);
return rc2;
}
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 15/52] sfc: Use pci_map_single() to map the skb header when doing TSO
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (13 preceding siblings ...)
2008-09-01 11:46 ` [PATCH 14/52] sfc: Don't leak PCI DMA maps in the TSO code when the queue fills up Ben Hutchings
@ 2008-09-01 11:46 ` Ben Hutchings
2008-09-01 11:46 ` [PATCH 16/52] sfc: Reduce the size of struct efx_tx_buffer Ben Hutchings
` (36 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:46 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/tx.c | 152 +++++++++++++++++++++++++++-----------------------
1 files changed, 83 insertions(+), 69 deletions(-)
diff --git a/drivers/net/sfc/tx.c b/drivers/net/sfc/tx.c
index 0452ea6..1112775 100644
--- a/drivers/net/sfc/tx.c
+++ b/drivers/net/sfc/tx.c
@@ -287,9 +287,14 @@ static inline int efx_enqueue_skb(struct efx_tx_queue *tx_queue,
}
/* Free the fragment we were mid-way through pushing */
- if (unmap_len)
- pci_unmap_page(pci_dev, unmap_addr, unmap_len,
- PCI_DMA_TODEVICE);
+ if (unmap_len) {
+ if (unmap_single)
+ pci_unmap_single(pci_dev, unmap_addr, unmap_len,
+ PCI_DMA_TODEVICE);
+ else
+ pci_unmap_page(pci_dev, unmap_addr, unmap_len,
+ PCI_DMA_TODEVICE);
+ }
return rc;
}
@@ -561,8 +566,7 @@ struct tso_state {
/* DMA address and length of the whole fragment */
unsigned int unmap_len;
dma_addr_t unmap_addr;
- struct page *page;
- unsigned page_off;
+ unsigned int unmap_single;
} ifc;
struct {
@@ -686,18 +690,14 @@ efx_tsoh_heap_free(struct efx_tx_queue *tx_queue, struct efx_tso_header *tsoh)
* @tx_queue: Efx TX queue
* @dma_addr: DMA address of fragment
* @len: Length of fragment
- * @skb: Only non-null for end of last segment
- * @end_of_packet: True if last fragment in a packet
- * @unmap_addr: DMA address of fragment for unmapping
- * @unmap_len: Only set this in last segment of a fragment
+ * @final_buffer: The final buffer inserted into the queue
*
* Push descriptors onto the TX queue. Return 0 on success or 1 if
* @tx_queue full.
*/
static int efx_tx_queue_insert(struct efx_tx_queue *tx_queue,
dma_addr_t dma_addr, unsigned len,
- const struct sk_buff *skb, int end_of_packet,
- dma_addr_t unmap_addr, unsigned unmap_len)
+ struct efx_tx_buffer **final_buffer)
{
struct efx_tx_buffer *buffer;
struct efx_nic *efx = tx_queue->efx;
@@ -725,8 +725,10 @@ static int efx_tx_queue_insert(struct efx_tx_queue *tx_queue,
fill_level = (tx_queue->insert_count
- tx_queue->old_read_count);
q_space = efx->type->txd_ring_mask - 1 - fill_level;
- if (unlikely(q_space-- <= 0))
+ if (unlikely(q_space-- <= 0)) {
+ *final_buffer = NULL;
return 1;
+ }
smp_mb();
--tx_queue->stopped;
}
@@ -766,10 +768,7 @@ static int efx_tx_queue_insert(struct efx_tx_queue *tx_queue,
EFX_BUG_ON_PARANOID(!len);
buffer->len = len;
- buffer->skb = skb;
- buffer->continuation = !end_of_packet;
- buffer->unmap_addr = unmap_addr;
- buffer->unmap_len = unmap_len;
+ *final_buffer = buffer;
return 0;
}
@@ -817,9 +816,16 @@ static void efx_enqueue_unwind(struct efx_tx_queue *tx_queue)
buffer->len = 0;
buffer->continuation = 1;
if (buffer->unmap_len) {
- pci_unmap_page(tx_queue->efx->pci_dev,
- buffer->unmap_addr,
- buffer->unmap_len, PCI_DMA_TODEVICE);
+ if (buffer->unmap_single)
+ pci_unmap_single(tx_queue->efx->pci_dev,
+ buffer->unmap_addr,
+ buffer->unmap_len,
+ PCI_DMA_TODEVICE);
+ else
+ pci_unmap_page(tx_queue->efx->pci_dev,
+ buffer->unmap_addr,
+ buffer->unmap_len,
+ PCI_DMA_TODEVICE);
buffer->unmap_len = 0;
}
}
@@ -846,31 +852,40 @@ static inline void tso_start(struct tso_state *st, const struct sk_buff *skb)
st->packet_space = st->p.full_packet_size;
st->remaining_len = skb->len - st->p.header_length;
+ st->ifc.unmap_len = 0;
+ st->ifc.unmap_single = 0;
}
-
-/**
- * tso_get_fragment - record fragment details and map for DMA
- * @st: TSO state
- * @efx: Efx NIC
- * @data: Pointer to fragment data
- * @len: Length of fragment
- *
- * Record fragment details and map for DMA. Return 0 on success, or
- * -%ENOMEM if DMA mapping fails.
- */
static inline int tso_get_fragment(struct tso_state *st, struct efx_nic *efx,
- int len, struct page *page, int page_off)
+ skb_frag_t *frag)
{
+ st->ifc.unmap_addr = pci_map_page(efx->pci_dev, frag->page,
+ frag->page_offset, frag->size,
+ PCI_DMA_TODEVICE);
+ if (likely(!pci_dma_mapping_error(efx->pci_dev, st->ifc.unmap_addr))) {
+ st->ifc.unmap_single = 0;
+ st->ifc.unmap_len = frag->size;
+ st->ifc.len = frag->size;
+ st->ifc.dma_addr = st->ifc.unmap_addr;
+ return 0;
+ }
+ return -ENOMEM;
+}
+
+static inline int
+tso_get_head_fragment(struct tso_state *st, struct efx_nic *efx,
+ const struct sk_buff *skb)
+{
+ int hl = st->p.header_length;
+ int len = skb_headlen(skb) - hl;
- st->ifc.unmap_addr = pci_map_page(efx->pci_dev, page, page_off,
- len, PCI_DMA_TODEVICE);
+ st->ifc.unmap_addr = pci_map_single(efx->pci_dev, skb->data + hl,
+ len, PCI_DMA_TODEVICE);
if (likely(!pci_dma_mapping_error(efx->pci_dev, st->ifc.unmap_addr))) {
+ st->ifc.unmap_single = 1;
st->ifc.unmap_len = len;
st->ifc.len = len;
st->ifc.dma_addr = st->ifc.unmap_addr;
- st->ifc.page = page;
- st->ifc.page_off = page_off;
return 0;
}
return -ENOMEM;
@@ -891,7 +906,7 @@ static inline int tso_fill_packet_with_fragment(struct efx_tx_queue *tx_queue,
const struct sk_buff *skb,
struct tso_state *st)
{
-
+ struct efx_tx_buffer *buffer;
int n, end_of_packet, rc;
if (st->ifc.len == 0)
@@ -907,16 +922,25 @@ static inline int tso_fill_packet_with_fragment(struct efx_tx_queue *tx_queue,
st->packet_space -= n;
st->remaining_len -= n;
st->ifc.len -= n;
- st->ifc.page_off += n;
- end_of_packet = st->remaining_len == 0 || st->packet_space == 0;
- rc = efx_tx_queue_insert(tx_queue, st->ifc.dma_addr, n,
- st->remaining_len ? NULL : skb,
- end_of_packet, st->ifc.unmap_addr,
- st->ifc.len ? 0 : st->ifc.unmap_len);
+ rc = efx_tx_queue_insert(tx_queue, st->ifc.dma_addr, n, &buffer);
+ if (likely(rc == 0)) {
+ if (st->remaining_len == 0)
+ /* Transfer ownership of the skb */
+ buffer->skb = skb;
- st->ifc.dma_addr += n;
+ end_of_packet = st->remaining_len == 0 || st->packet_space == 0;
+ buffer->continuation = !end_of_packet;
+ if (st->ifc.len == 0) {
+ /* Transfer ownership of the pci mapping */
+ buffer->unmap_len = st->ifc.unmap_len;
+ buffer->unmap_single = st->ifc.unmap_single;
+ st->ifc.unmap_len = 0;
+ }
+ }
+
+ st->ifc.dma_addr += n;
return rc;
}
@@ -1008,9 +1032,9 @@ static inline int tso_start_new_packet(struct efx_tx_queue *tx_queue,
static int efx_enqueue_skb_tso(struct efx_tx_queue *tx_queue,
const struct sk_buff *skb)
{
+ struct efx_nic *efx = tx_queue->efx;
int frag_i, rc, rc2 = NETDEV_TX_OK;
struct tso_state state;
- skb_frag_t *f;
/* Verify TSO is safe - these checks should never fail. */
efx_tso_check_safe(skb);
@@ -1026,25 +1050,12 @@ static int efx_enqueue_skb_tso(struct efx_tx_queue *tx_queue,
/* Grab the first payload fragment. */
EFX_BUG_ON_PARANOID(skb_shinfo(skb)->nr_frags < 1);
frag_i = 0;
- f = &skb_shinfo(skb)->frags[frag_i];
- rc = tso_get_fragment(&state, tx_queue->efx,
- f->size, f->page, f->page_offset);
+ rc = tso_get_fragment(&state, efx,
+ skb_shinfo(skb)->frags + frag_i);
if (rc)
goto mem_err;
} else {
- /* It may look like this code fragment assumes that the
- * skb->data portion does not cross a page boundary, but
- * that is not the case. It is guaranteed to be direct
- * mapped memory, and therefore is physically contiguous,
- * and so DMA will work fine. kmap_atomic() on this region
- * will just return the direct mapping, so that will work
- * too.
- */
- int page_off = (unsigned long)skb->data & (PAGE_SIZE - 1);
- int hl = state.p.header_length;
- rc = tso_get_fragment(&state, tx_queue->efx,
- skb_headlen(skb) - hl,
- virt_to_page(skb->data), page_off + hl);
+ rc = tso_get_head_fragment(&state, efx, skb);
if (rc)
goto mem_err;
frag_i = -1;
@@ -1063,9 +1074,8 @@ static int efx_enqueue_skb_tso(struct efx_tx_queue *tx_queue,
if (++frag_i >= skb_shinfo(skb)->nr_frags)
/* End of payload reached. */
break;
- f = &skb_shinfo(skb)->frags[frag_i];
- rc = tso_get_fragment(&state, tx_queue->efx,
- f->size, f->page, f->page_offset);
+ rc = tso_get_fragment(&state, efx,
+ skb_shinfo(skb)->frags + frag_i);
if (rc)
goto mem_err;
}
@@ -1083,8 +1093,7 @@ static int efx_enqueue_skb_tso(struct efx_tx_queue *tx_queue,
return NETDEV_TX_OK;
mem_err:
- EFX_ERR(tx_queue->efx, "Out of memory for TSO headers, or PCI mapping"
- " error\n");
+ EFX_ERR(efx, "Out of memory for TSO headers, or PCI mapping error\n");
dev_kfree_skb_any((struct sk_buff *)skb);
goto unwind;
@@ -1093,13 +1102,18 @@ static int efx_enqueue_skb_tso(struct efx_tx_queue *tx_queue,
/* Stop the queue if it wasn't stopped before. */
if (tx_queue->stopped == 1)
- efx_stop_queue(tx_queue->efx);
+ efx_stop_queue(efx);
unwind:
/* Free the DMA mapping we were in the process of writing out */
- if (state.ifc.unmap_len)
- pci_unmap_page(tx_queue->efx->pci_dev, state.ifc.unmap_addr,
- state.ifc.unmap_len, PCI_DMA_TODEVICE);
+ if (state.ifc.unmap_len) {
+ if (state.ifc.unmap_single)
+ pci_unmap_single(efx->pci_dev, state.ifc.unmap_addr,
+ state.ifc.unmap_len, PCI_DMA_TODEVICE);
+ else
+ pci_unmap_page(efx->pci_dev, state.ifc.unmap_addr,
+ state.ifc.unmap_len, PCI_DMA_TODEVICE);
+ }
efx_enqueue_unwind(tx_queue);
return rc2;
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 16/52] sfc: Reduce the size of struct efx_tx_buffer
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (14 preceding siblings ...)
2008-09-01 11:46 ` [PATCH 15/52] sfc: Use pci_map_single() to map the skb header when doing TSO Ben Hutchings
@ 2008-09-01 11:46 ` Ben Hutchings
2008-09-01 11:46 ` [PATCH 17/52] sfc: Use explicit bool for boolean variables, parameters and return values Ben Hutchings
` (35 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:46 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
Remove unmap_addr since it can be calculated from dma_addr, len and
unmap_len. This saves 4-16 bytes.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/net_driver.h | 2 --
drivers/net/sfc/tx.c | 20 +++++++++++---------
2 files changed, 11 insertions(+), 11 deletions(-)
diff --git a/drivers/net/sfc/net_driver.h b/drivers/net/sfc/net_driver.h
index f539e2e..6369f92 100644
--- a/drivers/net/sfc/net_driver.h
+++ b/drivers/net/sfc/net_driver.h
@@ -130,7 +130,6 @@ struct efx_special_buffer {
* This field is zero when the queue slot is empty.
* @continuation: True if this fragment is not the end of a packet.
* @unmap_single: True if pci_unmap_single should be used.
- * @unmap_addr: DMA address to unmap
* @unmap_len: Length of this fragment to unmap
*/
struct efx_tx_buffer {
@@ -140,7 +139,6 @@ struct efx_tx_buffer {
unsigned short len;
unsigned char continuation;
unsigned char unmap_single;
- dma_addr_t unmap_addr;
unsigned short unmap_len;
};
diff --git a/drivers/net/sfc/tx.c b/drivers/net/sfc/tx.c
index 1112775..5f01371 100644
--- a/drivers/net/sfc/tx.c
+++ b/drivers/net/sfc/tx.c
@@ -64,12 +64,14 @@ static inline void efx_dequeue_buffer(struct efx_tx_queue *tx_queue,
{
if (buffer->unmap_len) {
struct pci_dev *pci_dev = tx_queue->efx->pci_dev;
+ dma_addr_t unmap_addr = (buffer->dma_addr + buffer->len -
+ buffer->unmap_len);
if (buffer->unmap_single)
- pci_unmap_single(pci_dev, buffer->unmap_addr,
- buffer->unmap_len, PCI_DMA_TODEVICE);
+ pci_unmap_single(pci_dev, unmap_addr, buffer->unmap_len,
+ PCI_DMA_TODEVICE);
else
- pci_unmap_page(pci_dev, buffer->unmap_addr,
- buffer->unmap_len, PCI_DMA_TODEVICE);
+ pci_unmap_page(pci_dev, unmap_addr, buffer->unmap_len,
+ PCI_DMA_TODEVICE);
buffer->unmap_len = 0;
buffer->unmap_single = 0;
}
@@ -233,7 +235,6 @@ static inline int efx_enqueue_skb(struct efx_tx_queue *tx_queue,
} while (len);
/* Transfer ownership of the unmapping to the final buffer */
- buffer->unmap_addr = unmap_addr;
buffer->unmap_single = unmap_single;
buffer->unmap_len = unmap_len;
unmap_len = 0;
@@ -805,6 +806,7 @@ static inline void efx_tso_put_header(struct efx_tx_queue *tx_queue,
static void efx_enqueue_unwind(struct efx_tx_queue *tx_queue)
{
struct efx_tx_buffer *buffer;
+ dma_addr_t unmap_addr;
/* Work backwards until we hit the original insert pointer value */
while (tx_queue->insert_count != tx_queue->write_count) {
@@ -816,15 +818,15 @@ static void efx_enqueue_unwind(struct efx_tx_queue *tx_queue)
buffer->len = 0;
buffer->continuation = 1;
if (buffer->unmap_len) {
+ unmap_addr = (buffer->dma_addr + buffer->len -
+ buffer->unmap_len);
if (buffer->unmap_single)
pci_unmap_single(tx_queue->efx->pci_dev,
- buffer->unmap_addr,
- buffer->unmap_len,
+ unmap_addr, buffer->unmap_len,
PCI_DMA_TODEVICE);
else
pci_unmap_page(tx_queue->efx->pci_dev,
- buffer->unmap_addr,
- buffer->unmap_len,
+ unmap_addr, buffer->unmap_len,
PCI_DMA_TODEVICE);
buffer->unmap_len = 0;
}
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 17/52] sfc: Use explicit bool for boolean variables, parameters and return values
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (15 preceding siblings ...)
2008-09-01 11:46 ` [PATCH 16/52] sfc: Reduce the size of struct efx_tx_buffer Ben Hutchings
@ 2008-09-01 11:46 ` Ben Hutchings
2008-09-01 11:46 ` [PATCH 18/52] sfc: Set net_device::vlan_features appropriately Ben Hutchings
` (34 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:46 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
Replace (cond ? 1 : 0) with cond or !!cond as appropriate, and
(cond ? 0 : 1) with !cond.
Remove some redundant boolean temporaries.
Rename one field that looks like a flag but isn't.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/boards.c | 12 ++++----
drivers/net/sfc/efx.c | 47 ++++++++++++++----------------
drivers/net/sfc/efx.h | 6 ++--
drivers/net/sfc/enum.h | 9 ++---
drivers/net/sfc/ethtool.c | 8 ++--
drivers/net/sfc/falcon.c | 50 +++++++++++++++++---------------
drivers/net/sfc/falcon.h | 2 +-
drivers/net/sfc/falcon_xmac.c | 63 ++++++++++++++++++++---------------------
drivers/net/sfc/mdio_10g.c | 12 +++----
drivers/net/sfc/mdio_10g.h | 11 ++++---
drivers/net/sfc/net_driver.h | 36 +++++++++++-----------
drivers/net/sfc/phy.h | 2 +-
drivers/net/sfc/rx.c | 14 ++++----
drivers/net/sfc/rx.h | 2 +-
drivers/net/sfc/selftest.c | 15 +++++----
drivers/net/sfc/tenxpress.c | 28 +++++++++---------
drivers/net/sfc/tx.c | 32 ++++++++++----------
drivers/net/sfc/xfp_phy.c | 4 +-
18 files changed, 175 insertions(+), 178 deletions(-)
diff --git a/drivers/net/sfc/boards.c b/drivers/net/sfc/boards.c
index d3d3dd0..99e6023 100644
--- a/drivers/net/sfc/boards.c
+++ b/drivers/net/sfc/boards.c
@@ -31,23 +31,23 @@ static void blink_led_timer(unsigned long context)
mod_timer(&bl->timer, jiffies + BLINK_INTERVAL);
}
-static void board_blink(struct efx_nic *efx, int blink)
+static void board_blink(struct efx_nic *efx, bool blink)
{
struct efx_blinker *blinker = &efx->board_info.blinker;
/* The rtnl mutex serialises all ethtool ioctls, so
* nothing special needs doing here. */
if (blink) {
- blinker->resubmit = 1;
- blinker->state = 0;
+ blinker->resubmit = true;
+ blinker->state = false;
setup_timer(&blinker->timer, blink_led_timer,
(unsigned long)efx);
mod_timer(&blinker->timer, jiffies + BLINK_INTERVAL);
} else {
- blinker->resubmit = 0;
+ blinker->resubmit = false;
if (blinker->timer.function)
del_timer_sync(&blinker->timer);
- efx->board_info.set_fault_led(efx, 0);
+ efx->board_info.set_fault_led(efx, false);
}
}
@@ -78,7 +78,7 @@ static int sfe4002_init_leds(struct efx_nic *efx)
return 0;
}
-static void sfe4002_fault_led(struct efx_nic *efx, int state)
+static void sfe4002_fault_led(struct efx_nic *efx, bool state)
{
xfp_set_led(efx, SFE4002_FAULT_LED, state ? QUAKE_LED_ON :
QUAKE_LED_OFF);
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c
index d3b76bd..7eb11d3 100644
--- a/drivers/net/sfc/efx.c
+++ b/drivers/net/sfc/efx.c
@@ -51,7 +51,7 @@ static struct workqueue_struct *refill_workqueue;
* This sets the default for new devices. It can be controlled later
* using ethtool.
*/
-static int lro = 1;
+static int lro = true;
module_param(lro, int, 0644);
MODULE_PARM_DESC(lro, "Large receive offload acceleration");
@@ -64,7 +64,7 @@ MODULE_PARM_DESC(lro, "Large receive offload acceleration");
* This is forced to 0 for MSI interrupt mode as the interrupt vector
* is not written
*/
-static unsigned int separate_tx_and_rx_channels = 1;
+static unsigned int separate_tx_and_rx_channels = true;
/* This is the weight assigned to each of the (per-channel) virtual
* NAPI devices.
@@ -80,7 +80,7 @@ unsigned int efx_monitor_interval = 1 * HZ;
/* This controls whether or not the hardware monitor will trigger a
* reset when it detects an error condition.
*/
-static unsigned int monitor_reset = 1;
+static unsigned int monitor_reset = true;
/* This controls whether or not the driver will initialise devices
* with invalid MAC addresses stored in the EEPROM or flash. If true,
@@ -202,7 +202,7 @@ static inline void efx_channel_processed(struct efx_channel *channel)
/* The interrupt handler for this channel may set work_pending
* as soon as we acknowledge the events we've seen. Make sure
* it's cleared before then. */
- channel->work_pending = 0;
+ channel->work_pending = false;
smp_wmb();
falcon_eventq_read_ack(channel);
@@ -431,8 +431,8 @@ static void efx_start_channel(struct efx_channel *channel)
/* The interrupt handler for this channel may set work_pending
* as soon as we enable it. Make sure it's cleared before
* then. Similarly, make sure it sees the enabled flag set. */
- channel->work_pending = 0;
- channel->enabled = 1;
+ channel->work_pending = false;
+ channel->enabled = true;
smp_wmb();
napi_enable(&channel->napi_str);
@@ -455,7 +455,7 @@ static void efx_stop_channel(struct efx_channel *channel)
EFX_LOG(channel->efx, "stop chan %d\n", channel->channel);
- channel->enabled = 0;
+ channel->enabled = false;
napi_disable(&channel->napi_str);
/* Ensure that any worker threads have exited or will be no-ops */
@@ -525,8 +525,6 @@ void efx_schedule_slow_fill(struct efx_rx_queue *rx_queue, int delay)
*/
static void efx_link_status_changed(struct efx_nic *efx)
{
- int carrier_ok;
-
/* SFC Bug 5356: A net_dev notifier is registered, so we must ensure
* that no events are triggered between unregister_netdev() and the
* driver unloading. A more general condition is that NETDEV_CHANGE
@@ -534,8 +532,7 @@ static void efx_link_status_changed(struct efx_nic *efx)
if (!netif_running(efx->net_dev))
return;
- carrier_ok = netif_carrier_ok(efx->net_dev) ? 1 : 0;
- if (efx->link_up != carrier_ok) {
+ if (efx->link_up != netif_carrier_ok(efx->net_dev)) {
efx->n_link_state_changes++;
if (efx->link_up)
@@ -660,7 +657,7 @@ static int efx_init_port(struct efx_nic *efx)
if (rc)
return rc;
- efx->port_initialized = 1;
+ efx->port_initialized = true;
/* Reconfigure port to program MAC registers */
falcon_reconfigure_xmac(efx);
@@ -677,7 +674,7 @@ static void efx_start_port(struct efx_nic *efx)
BUG_ON(efx->port_enabled);
mutex_lock(&efx->mac_lock);
- efx->port_enabled = 1;
+ efx->port_enabled = true;
__efx_reconfigure_port(efx);
mutex_unlock(&efx->mac_lock);
}
@@ -691,7 +688,7 @@ static void efx_stop_port(struct efx_nic *efx)
EFX_LOG(efx, "stop port\n");
mutex_lock(&efx->mac_lock);
- efx->port_enabled = 0;
+ efx->port_enabled = false;
mutex_unlock(&efx->mac_lock);
/* Serialise against efx_set_multicast_list() */
@@ -709,9 +706,9 @@ static void efx_fini_port(struct efx_nic *efx)
return;
falcon_fini_xmac(efx);
- efx->port_initialized = 0;
+ efx->port_initialized = false;
- efx->link_up = 0;
+ efx->link_up = false;
efx_link_status_changed(efx);
}
@@ -866,7 +863,7 @@ static void efx_probe_interrupts(struct efx_nic *efx)
if (rc == 0) {
for (i = 0; i < efx->rss_queues; i++) {
- efx->channel[i].has_interrupt = 1;
+ efx->channel[i].has_interrupt = true;
efx->channel[i].irq = xentries[i].vector;
}
} else {
@@ -882,7 +879,7 @@ static void efx_probe_interrupts(struct efx_nic *efx)
rc = pci_enable_msi(efx->pci_dev);
if (rc == 0) {
efx->channel[0].irq = efx->pci_dev->irq;
- efx->channel[0].has_interrupt = 1;
+ efx->channel[0].has_interrupt = true;
} else {
EFX_ERR(efx, "could not enable MSI\n");
efx->interrupt_mode = EFX_INT_MODE_LEGACY;
@@ -894,7 +891,7 @@ static void efx_probe_interrupts(struct efx_nic *efx)
efx->rss_queues = 1;
/* Every channel is interruptible */
for (i = 0; i < EFX_MAX_CHANNELS; i++)
- efx->channel[i].has_interrupt = 1;
+ efx->channel[i].has_interrupt = true;
efx->legacy_irq = efx->pci_dev->irq;
}
}
@@ -935,7 +932,7 @@ static void efx_select_used(struct efx_nic *efx)
rx_queue = &efx->rx_queue[i];
if (i < efx->rss_queues) {
- rx_queue->used = 1;
+ rx_queue->used = true;
/* If we allow multiple RX queues per channel
* we need to decide that here
*/
@@ -1462,13 +1459,13 @@ static void efx_set_multicast_list(struct net_device *net_dev)
struct efx_nic *efx = netdev_priv(net_dev);
struct dev_mc_list *mc_list = net_dev->mc_list;
union efx_multicast_hash *mc_hash = &efx->multicast_hash;
- int promiscuous;
+ bool promiscuous;
u32 crc;
int bit;
int i;
/* Set per-MAC promiscuity flag and reconfigure MAC if necessary */
- promiscuous = (net_dev->flags & IFF_PROMISC) ? 1 : 0;
+ promiscuous = !!(net_dev->flags & IFF_PROMISC);
if (efx->promiscuous != promiscuous) {
efx->promiscuous = promiscuous;
/* Close the window between efx_stop_port() and efx_flush_all()
@@ -1801,7 +1798,7 @@ int efx_port_dummy_op_int(struct efx_nic *efx)
return 0;
}
void efx_port_dummy_op_void(struct efx_nic *efx) {}
-void efx_port_dummy_op_blink(struct efx_nic *efx, int blink) {}
+void efx_port_dummy_op_blink(struct efx_nic *efx, bool blink) {}
static struct efx_phy_operations efx_dummy_phy_operations = {
.init = efx_port_dummy_op_int,
@@ -1855,7 +1852,7 @@ static int efx_init_struct(struct efx_nic *efx, struct efx_nic_type *type,
efx->board_info = efx_dummy_board_info;
efx->net_dev = net_dev;
- efx->rx_checksum_enabled = 1;
+ efx->rx_checksum_enabled = true;
spin_lock_init(&efx->netif_stop_lock);
spin_lock_init(&efx->stats_lock);
mutex_init(&efx->mac_lock);
@@ -1869,7 +1866,7 @@ static int efx_init_struct(struct efx_nic *efx, struct efx_nic_type *type,
channel->efx = efx;
channel->channel = i;
channel->evqnum = i;
- channel->work_pending = 0;
+ channel->work_pending = false;
}
for (i = 0; i < EFX_TX_QUEUE_COUNT; i++) {
tx_queue = &efx->tx_queue[i];
diff --git a/drivers/net/sfc/efx.h b/drivers/net/sfc/efx.h
index 3b2f69f..29a1c58 100644
--- a/drivers/net/sfc/efx.h
+++ b/drivers/net/sfc/efx.h
@@ -28,7 +28,7 @@ extern void efx_wake_queue(struct efx_nic *efx);
/* RX */
extern void efx_xmit_done(struct efx_tx_queue *tx_queue, unsigned int index);
extern void efx_rx_packet(struct efx_rx_queue *rx_queue, unsigned int index,
- unsigned int len, int checksummed, int discard);
+ unsigned int len, bool checksummed, bool discard);
extern void efx_schedule_slow_fill(struct efx_rx_queue *rx_queue, int delay);
/* Channels */
@@ -50,7 +50,7 @@ extern void efx_hex_dump(const u8 *, unsigned int, const char *);
/* Dummy PHY ops for PHY drivers */
extern int efx_port_dummy_op_int(struct efx_nic *efx);
extern void efx_port_dummy_op_void(struct efx_nic *efx);
-extern void efx_port_dummy_op_blink(struct efx_nic *efx, int blink);
+extern void efx_port_dummy_op_blink(struct efx_nic *efx, bool blink);
extern unsigned int efx_monitor_interval;
@@ -59,7 +59,7 @@ static inline void efx_schedule_channel(struct efx_channel *channel)
{
EFX_TRACE(channel->efx, "channel %d scheduling NAPI poll on CPU%d\n",
channel->channel, raw_smp_processor_id());
- channel->work_pending = 1;
+ channel->work_pending = true;
netif_rx_schedule(channel->napi_dev, &channel->napi_str);
}
diff --git a/drivers/net/sfc/enum.h b/drivers/net/sfc/enum.h
index c53290d..cec15db 100644
--- a/drivers/net/sfc/enum.h
+++ b/drivers/net/sfc/enum.h
@@ -52,12 +52,11 @@ extern const char *efx_loopback_mode_names[];
#define LOOPBACK_MASK(_efx) \
(1 << (_efx)->loopback_mode)
-#define LOOPBACK_INTERNAL(_efx) \
- ((LOOPBACKS_10G_INTERNAL & LOOPBACK_MASK(_efx)) ? 1 : 0)
+#define LOOPBACK_INTERNAL(_efx) \
+ (!!(LOOPBACKS_10G_INTERNAL & LOOPBACK_MASK(_efx)))
-#define LOOPBACK_OUT_OF(_from, _to, _mask) \
- (((LOOPBACK_MASK(_from) & (_mask)) && \
- ((LOOPBACK_MASK(_to) & (_mask)) == 0)) ? 1 : 0)
+#define LOOPBACK_OUT_OF(_from, _to, _mask) \
+ ((LOOPBACK_MASK(_from) & (_mask)) && !(LOOPBACK_MASK(_to) & (_mask)))
/*****************************************************************************/
diff --git a/drivers/net/sfc/ethtool.c b/drivers/net/sfc/ethtool.c
index ccd82f1..6142c3a 100644
--- a/drivers/net/sfc/ethtool.c
+++ b/drivers/net/sfc/ethtool.c
@@ -447,7 +447,7 @@ static int efx_ethtool_set_rx_csum(struct net_device *net_dev, u32 enable)
/* No way to stop the hardware doing the checks; we just
* ignore the result.
*/
- efx->rx_checksum_enabled = (enable ? 1 : 0);
+ efx->rx_checksum_enabled = !!enable;
return 0;
}
@@ -641,9 +641,9 @@ static void efx_ethtool_get_pauseparam(struct net_device *net_dev,
{
struct efx_nic *efx = netdev_priv(net_dev);
- pause->rx_pause = (efx->flow_control & EFX_FC_RX) ? 1 : 0;
- pause->tx_pause = (efx->flow_control & EFX_FC_TX) ? 1 : 0;
- pause->autoneg = (efx->flow_control & EFX_FC_AUTO) ? 1 : 0;
+ pause->rx_pause = !!(efx->flow_control & EFX_FC_RX);
+ pause->tx_pause = !!(efx->flow_control & EFX_FC_TX);
+ pause->autoneg = !!(efx->flow_control & EFX_FC_AUTO);
}
diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c
index 8ee63da..fb06971 100644
--- a/drivers/net/sfc/falcon.c
+++ b/drivers/net/sfc/falcon.c
@@ -539,7 +539,7 @@ static int falcon_flush_tx_queue(struct efx_tx_queue *tx_queue)
if (EFX_WORKAROUND_11557(efx)) {
efx_oword_t reg;
- int enabled;
+ bool enabled;
falcon_read_table(efx, ®, efx->type->txd_ptr_tbl_base,
tx_queue->queue);
@@ -644,8 +644,8 @@ int falcon_init_rx(struct efx_rx_queue *rx_queue)
efx_oword_t rx_desc_ptr;
struct efx_nic *efx = rx_queue->efx;
int rc;
- int is_b0 = falcon_rev(efx) >= FALCON_REV_B0;
- int iscsi_digest_en = is_b0;
+ bool is_b0 = falcon_rev(efx) >= FALCON_REV_B0;
+ bool iscsi_digest_en = is_b0;
EFX_LOG(efx, "RX queue %d ring in special buffers %d-%d\n",
rx_queue->queue, rx_queue->rxd.index,
@@ -695,7 +695,8 @@ static int falcon_flush_rx_queue(struct efx_rx_queue *rx_queue)
read_ptr = channel->eventq_read_ptr;
for (i = 0; i < FALCON_EVQ_SIZE; ++i) {
efx_qword_t *event = falcon_event(channel, read_ptr);
- int ev_code, ev_sub_code, ev_queue, ev_failed;
+ int ev_code, ev_sub_code, ev_queue;
+ bool ev_failed;
if (!falcon_event_present(event))
break;
@@ -722,7 +723,7 @@ static int falcon_flush_rx_queue(struct efx_rx_queue *rx_queue)
if (EFX_WORKAROUND_11557(efx)) {
efx_oword_t reg;
- int enabled;
+ bool enabled;
falcon_read_table(efx, ®, efx->type->rxd_ptr_tbl_base,
rx_queue->queue);
@@ -851,15 +852,16 @@ static inline void falcon_handle_tx_event(struct efx_channel *channel,
/* Detect errors included in the rx_evt_pkt_ok bit. */
static void falcon_handle_rx_not_ok(struct efx_rx_queue *rx_queue,
const efx_qword_t *event,
- unsigned *rx_ev_pkt_ok,
- int *discard)
+ bool *rx_ev_pkt_ok,
+ bool *discard)
{
struct efx_nic *efx = rx_queue->efx;
- unsigned rx_ev_buf_owner_id_err, rx_ev_ip_hdr_chksum_err;
- unsigned rx_ev_tcp_udp_chksum_err, rx_ev_eth_crc_err;
- unsigned rx_ev_frm_trunc, rx_ev_drib_nib, rx_ev_tobe_disc;
- unsigned rx_ev_pkt_type, rx_ev_other_err, rx_ev_pause_frm;
- unsigned rx_ev_ip_frag_err, rx_ev_hdr_type, rx_ev_mcast_pkt;
+ bool rx_ev_buf_owner_id_err, rx_ev_ip_hdr_chksum_err;
+ bool rx_ev_tcp_udp_chksum_err, rx_ev_eth_crc_err;
+ bool rx_ev_frm_trunc, rx_ev_drib_nib, rx_ev_tobe_disc;
+ bool rx_ev_other_err, rx_ev_pause_frm;
+ bool rx_ev_ip_frag_err, rx_ev_hdr_type, rx_ev_mcast_pkt;
+ unsigned rx_ev_pkt_type;
rx_ev_hdr_type = EFX_QWORD_FIELD(*event, RX_EV_HDR_TYPE);
rx_ev_mcast_pkt = EFX_QWORD_FIELD(*event, RX_EV_MCAST_PKT);
@@ -954,9 +956,9 @@ static inline int falcon_handle_rx_event(struct efx_channel *channel,
const efx_qword_t *event)
{
unsigned int rx_ev_q_label, rx_ev_desc_ptr, rx_ev_byte_cnt;
- unsigned int rx_ev_pkt_ok, rx_ev_hdr_type, rx_ev_mcast_pkt;
+ unsigned int rx_ev_hdr_type, rx_ev_mcast_pkt;
unsigned expected_ptr;
- int discard = 0, checksummed;
+ bool rx_ev_pkt_ok, discard = false, checksummed;
struct efx_rx_queue *rx_queue;
struct efx_nic *efx = channel->efx;
@@ -985,7 +987,7 @@ static inline int falcon_handle_rx_event(struct efx_channel *channel,
} else {
falcon_handle_rx_not_ok(rx_queue, event, &rx_ev_pkt_ok,
&discard);
- checksummed = 0;
+ checksummed = false;
}
/* Detect multicast packets that didn't match the filter */
@@ -995,7 +997,7 @@ static inline int falcon_handle_rx_event(struct efx_channel *channel,
EFX_QWORD_FIELD(*event, RX_EV_MCAST_HASH_MATCH);
if (unlikely(!rx_ev_mcast_hash_match))
- discard = 1;
+ discard = true;
}
/* Handle received packet */
@@ -1010,23 +1012,23 @@ static void falcon_handle_global_event(struct efx_channel *channel,
efx_qword_t *event)
{
struct efx_nic *efx = channel->efx;
- int is_phy_event = 0, handled = 0;
+ bool is_phy_event = false, handled = false;
/* Check for interrupt on either port. Some boards have a
* single PHY wired to the interrupt line for port 1. */
if (EFX_QWORD_FIELD(*event, G_PHY0_INTR) ||
EFX_QWORD_FIELD(*event, G_PHY1_INTR) ||
EFX_QWORD_FIELD(*event, XG_PHY_INTR))
- is_phy_event = 1;
+ is_phy_event = true;
if ((falcon_rev(efx) >= FALCON_REV_B0) &&
EFX_OWORD_FIELD(*event, XG_MNT_INTR_B0))
- is_phy_event = 1;
+ is_phy_event = true;
if (is_phy_event) {
efx->phy_op->clear_interrupt(efx);
queue_work(efx->workqueue, &efx->reconfigure_work);
- handled = 1;
+ handled = true;
}
if (EFX_QWORD_FIELD_VER(efx, *event, RX_RECOVERY)) {
@@ -1036,7 +1038,7 @@ static void falcon_handle_global_event(struct efx_channel *channel,
atomic_inc(&efx->rx_reset);
efx_schedule_reset(efx, EFX_WORKAROUND_6555(efx) ?
RESET_TYPE_RX_RECOVERY : RESET_TYPE_DISABLE);
- handled = 1;
+ handled = true;
}
if (!handled)
@@ -1756,7 +1758,7 @@ void falcon_reconfigure_mac_wrapper(struct efx_nic *efx)
{
efx_oword_t reg;
int link_speed;
- unsigned int tx_fc;
+ bool tx_fc;
if (efx->link_options & GM_LPA_10000)
link_speed = 0x3;
@@ -1791,7 +1793,7 @@ void falcon_reconfigure_mac_wrapper(struct efx_nic *efx)
/* Transmission of pause frames when RX crosses the threshold is
* covered by RX_XOFF_MAC_EN and XM_TX_CFG_REG:XM_FCNTL.
* Action on receipt of pause frames is controller by XM_DIS_FCNTL */
- tx_fc = (efx->flow_control & EFX_FC_TX) ? 1 : 0;
+ tx_fc = !!(efx->flow_control & EFX_FC_TX);
falcon_read(efx, ®, RX_CFG_REG_KER);
EFX_SET_OWORD_FIELD_VER(efx, reg, RX_XOFF_MAC_EN, tx_fc);
@@ -2064,7 +2066,7 @@ int falcon_probe_port(struct efx_nic *efx)
return rc;
/* Set up GMII structure for PHY */
- efx->mii.supports_gmii = 1;
+ efx->mii.supports_gmii = true;
falcon_init_mdio(&efx->mii);
/* Hardware flow ctrl. FalconA RX FIFO too small for pause generation */
diff --git a/drivers/net/sfc/falcon.h b/drivers/net/sfc/falcon.h
index 492f9bc..a72f50e 100644
--- a/drivers/net/sfc/falcon.h
+++ b/drivers/net/sfc/falcon.h
@@ -65,7 +65,7 @@ extern int falcon_probe_port(struct efx_nic *efx);
extern void falcon_remove_port(struct efx_nic *efx);
/* MAC/PHY */
-extern int falcon_xaui_link_ok(struct efx_nic *efx);
+extern bool falcon_xaui_link_ok(struct efx_nic *efx);
extern int falcon_dma_stats(struct efx_nic *efx,
unsigned int done_offset);
extern void falcon_drain_tx_fifo(struct efx_nic *efx);
diff --git a/drivers/net/sfc/falcon_xmac.c b/drivers/net/sfc/falcon_xmac.c
index ab114b4..be5a86f 100644
--- a/drivers/net/sfc/falcon_xmac.c
+++ b/drivers/net/sfc/falcon_xmac.c
@@ -70,7 +70,7 @@ static int falcon_reset_xmac(struct efx_nic *efx)
}
/* This often fails when DSP is disabled, ignore it */
- if (sfe4001_phy_flash_cfg != 0)
+ if (sfe4001_phy_flash_cfg)
return 0;
EFX_ERR(efx, "timed out waiting for XMAC core reset\n");
@@ -217,12 +217,12 @@ int falcon_reset_xaui(struct efx_nic *efx)
return rc;
}
-static int falcon_xgmii_status(struct efx_nic *efx)
+static bool falcon_xgmii_status(struct efx_nic *efx)
{
efx_dword_t reg;
if (falcon_rev(efx) < FALCON_REV_B0)
- return 1;
+ return true;
/* The ISR latches, so clear it and re-read */
falcon_xmac_readl(efx, ®, XM_MGT_INT_REG_MAC_B0);
@@ -231,13 +231,13 @@ static int falcon_xgmii_status(struct efx_nic *efx)
if (EFX_DWORD_FIELD(reg, XM_LCLFLT) ||
EFX_DWORD_FIELD(reg, XM_RMTFLT)) {
EFX_INFO(efx, "MGT_INT: "EFX_DWORD_FMT"\n", EFX_DWORD_VAL(reg));
- return 0;
+ return false;
}
- return 1;
+ return true;
}
-static void falcon_mask_status_intr(struct efx_nic *efx, int enable)
+static void falcon_mask_status_intr(struct efx_nic *efx, bool enable)
{
efx_dword_t reg;
@@ -274,7 +274,7 @@ int falcon_init_xmac(struct efx_nic *efx)
if (rc)
goto fail2;
- falcon_mask_status_intr(efx, 1);
+ falcon_mask_status_intr(efx, true);
return 0;
fail2:
@@ -283,13 +283,14 @@ int falcon_init_xmac(struct efx_nic *efx)
return rc;
}
-int falcon_xaui_link_ok(struct efx_nic *efx)
+bool falcon_xaui_link_ok(struct efx_nic *efx)
{
efx_dword_t reg;
- int align_done, sync_status, link_ok = 0;
+ bool align_done, link_ok = false;
+ int sync_status;
if (LOOPBACK_INTERNAL(efx))
- return 1;
+ return true;
/* Read link status */
falcon_xmac_readl(efx, ®, XX_CORE_STAT_REG_MAC);
@@ -297,7 +298,7 @@ int falcon_xaui_link_ok(struct efx_nic *efx)
align_done = EFX_DWORD_FIELD(reg, XX_ALIGN_DONE);
sync_status = EFX_DWORD_FIELD(reg, XX_SYNC_STAT);
if (align_done && (sync_status == XX_SYNC_STAT_DECODE_SYNCED))
- link_ok = 1;
+ link_ok = true;
/* Clear link status ready for next read */
EFX_SET_DWORD_FIELD(reg, XX_COMMA_DET, XX_COMMA_DET_RESET);
@@ -309,8 +310,7 @@ int falcon_xaui_link_ok(struct efx_nic *efx)
* (error conditions from the wire side propoagate back through
* the phy to the xaui side). */
if (efx->link_up && link_ok) {
- int has_phyxs = efx->phy_op->mmds & (1 << MDIO_MMD_PHYXS);
- if (has_phyxs)
+ if (efx->phy_op->mmds & (1 << MDIO_MMD_PHYXS))
link_ok = mdio_clause45_phyxgxs_lane_sync(efx);
}
@@ -326,7 +326,7 @@ static void falcon_reconfigure_xmac_core(struct efx_nic *efx)
{
unsigned int max_frame_len;
efx_dword_t reg;
- int rx_fc = (efx->flow_control & EFX_FC_RX) ? 1 : 0;
+ bool rx_fc = !!(efx->flow_control & EFX_FC_RX);
/* Configure MAC - cut-thru mode is hard wired on */
EFX_POPULATE_DWORD_3(reg,
@@ -365,7 +365,7 @@ static void falcon_reconfigure_xmac_core(struct efx_nic *efx)
EFX_POPULATE_DWORD_2(reg,
XM_PAUSE_TIME, 0xfffe, /* MAX PAUSE TIME */
- XM_DIS_FCNTL, rx_fc ? 0 : 1);
+ XM_DIS_FCNTL, !rx_fc);
falcon_xmac_writel(efx, ®, XM_FC_REG_MAC);
/* Set MAC address */
@@ -384,16 +384,15 @@ static void falcon_reconfigure_xmac_core(struct efx_nic *efx)
static void falcon_reconfigure_xgxs_core(struct efx_nic *efx)
{
efx_dword_t reg;
- int xgxs_loopback = (efx->loopback_mode == LOOPBACK_XGXS) ? 1 : 0;
- int xaui_loopback = (efx->loopback_mode == LOOPBACK_XAUI) ? 1 : 0;
- int xgmii_loopback =
- (efx->loopback_mode == LOOPBACK_XGMII) ? 1 : 0;
+ bool xgxs_loopback = (efx->loopback_mode == LOOPBACK_XGXS);
+ bool xaui_loopback = (efx->loopback_mode == LOOPBACK_XAUI);
+ bool xgmii_loopback = (efx->loopback_mode == LOOPBACK_XGMII);
/* XGXS block is flaky and will need to be reset if moving
* into our out of XGMII, XGXS or XAUI loopbacks. */
if (EFX_WORKAROUND_5147(efx)) {
- int old_xgmii_loopback, old_xgxs_loopback, old_xaui_loopback;
- int reset_xgxs;
+ bool old_xgmii_loopback, old_xgxs_loopback, old_xaui_loopback;
+ bool reset_xgxs;
falcon_xmac_readl(efx, ®, XX_CORE_STAT_REG_MAC);
old_xgxs_loopback = EFX_DWORD_FIELD(reg, XX_XGXS_LB_EN);
@@ -438,7 +437,7 @@ static void falcon_reconfigure_xgxs_core(struct efx_nic *efx)
/* Try and bring the Falcon side of the Falcon-Phy XAUI link fails
* to come back up. Bash it until it comes back up */
-static int falcon_check_xaui_link_up(struct efx_nic *efx)
+static bool falcon_check_xaui_link_up(struct efx_nic *efx)
{
int max_tries, tries;
tries = EFX_WORKAROUND_5147(efx) ? 5 : 1;
@@ -446,11 +445,11 @@ static int falcon_check_xaui_link_up(struct efx_nic *efx)
if ((efx->loopback_mode == LOOPBACK_NETWORK) ||
(efx->phy_type == PHY_TYPE_NONE))
- return 0;
+ return false;
while (tries) {
if (falcon_xaui_link_ok(efx))
- return 1;
+ return true;
EFX_LOG(efx, "%s Clobbering XAUI (%d tries left).\n",
__func__, tries);
@@ -461,14 +460,14 @@ static int falcon_check_xaui_link_up(struct efx_nic *efx)
EFX_LOG(efx, "Failed to bring XAUI link back up in %d tries!\n",
max_tries);
- return 0;
+ return false;
}
void falcon_reconfigure_xmac(struct efx_nic *efx)
{
- int xaui_link_ok;
+ bool xaui_link_ok;
- falcon_mask_status_intr(efx, 0);
+ falcon_mask_status_intr(efx, false);
falcon_deconfigure_mac_wrapper(efx);
@@ -484,7 +483,7 @@ void falcon_reconfigure_xmac(struct efx_nic *efx)
xaui_link_ok = falcon_check_xaui_link_up(efx);
if (xaui_link_ok && efx->link_up)
- falcon_mask_status_intr(efx, 1);
+ falcon_mask_status_intr(efx, true);
}
void falcon_fini_xmac(struct efx_nic *efx)
@@ -563,14 +562,14 @@ void falcon_update_stats_xmac(struct efx_nic *efx)
int falcon_check_xmac(struct efx_nic *efx)
{
- unsigned xaui_link_ok;
+ bool xaui_link_ok;
int rc;
if ((efx->loopback_mode == LOOPBACK_NETWORK) ||
(efx->phy_type == PHY_TYPE_NONE))
return 0;
- falcon_mask_status_intr(efx, 0);
+ falcon_mask_status_intr(efx, false);
xaui_link_ok = falcon_xaui_link_ok(efx);
if (EFX_WORKAROUND_5147(efx) && !xaui_link_ok)
@@ -581,7 +580,7 @@ int falcon_check_xmac(struct efx_nic *efx)
/* Unmask interrupt if everything was (and still is) ok */
if (xaui_link_ok && efx->link_up)
- falcon_mask_status_intr(efx, 1);
+ falcon_mask_status_intr(efx, true);
return rc;
}
@@ -622,7 +621,7 @@ int falcon_xmac_set_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd)
int falcon_xmac_set_pause(struct efx_nic *efx, enum efx_fc_type flow_control)
{
- int reset;
+ bool reset;
if (flow_control & EFX_FC_AUTO) {
EFX_LOG(efx, "10G does not support flow control "
diff --git a/drivers/net/sfc/mdio_10g.c b/drivers/net/sfc/mdio_10g.c
index c4f540e..4064946 100644
--- a/drivers/net/sfc/mdio_10g.c
+++ b/drivers/net/sfc/mdio_10g.c
@@ -159,20 +159,19 @@ int mdio_clause45_check_mmds(struct efx_nic *efx,
return 0;
}
-int mdio_clause45_links_ok(struct efx_nic *efx, unsigned int mmd_mask)
+bool mdio_clause45_links_ok(struct efx_nic *efx, unsigned int mmd_mask)
{
int phy_id = efx->mii.phy_id;
int status;
- int ok = 1;
+ bool ok = true;
int mmd = 0;
- int good;
/* If the port is in loopback, then we should only consider a subset
* of mmd's */
if (LOOPBACK_INTERNAL(efx))
- return 1;
+ return true;
else if (efx->loopback_mode == LOOPBACK_NETWORK)
- return 0;
+ return false;
else if (efx->loopback_mode == LOOPBACK_PHYXS)
mmd_mask &= ~(MDIO_MMDREG_DEVS0_PHYXS |
MDIO_MMDREG_DEVS0_PCS |
@@ -192,8 +191,7 @@ int mdio_clause45_links_ok(struct efx_nic *efx, unsigned int mmd_mask)
status = mdio_clause45_read(efx, phy_id,
mmd, MDIO_MMDREG_STAT1);
- good = status & (1 << MDIO_MMDREG_STAT1_LINK_LBN);
- ok = ok && good;
+ ok = ok && (status & (1 << MDIO_MMDREG_STAT1_LINK_LBN));
}
mmd_mask = (mmd_mask >> 1);
mmd++;
diff --git a/drivers/net/sfc/mdio_10g.h b/drivers/net/sfc/mdio_10g.h
index 3bb6b55..19c42ea 100644
--- a/drivers/net/sfc/mdio_10g.h
+++ b/drivers/net/sfc/mdio_10g.h
@@ -199,16 +199,17 @@ static inline u32 mdio_clause45_read_id(struct efx_nic *efx, int mmd)
return (id_hi << 16) | (id_low);
}
-static inline int mdio_clause45_phyxgxs_lane_sync(struct efx_nic *efx)
+static inline bool mdio_clause45_phyxgxs_lane_sync(struct efx_nic *efx)
{
- int i, sync, lane_status;
+ int i, lane_status;
+ bool sync;
for (i = 0; i < 2; ++i)
lane_status = mdio_clause45_read(efx, efx->mii.phy_id,
MDIO_MMD_PHYXS,
MDIO_PHYXS_LANE_STATE);
- sync = (lane_status & (1 << MDIO_PHYXS_LANE_ALIGNED_LBN)) != 0;
+ sync = !!(lane_status & (1 << MDIO_PHYXS_LANE_ALIGNED_LBN));
if (!sync)
EFX_LOG(efx, "XGXS lane status: %x\n", lane_status);
return sync;
@@ -230,8 +231,8 @@ int mdio_clause45_check_mmds(struct efx_nic *efx,
unsigned int mmd_mask, unsigned int fatal_mask);
/* Check the link status of specified mmds in bit mask */
-extern int mdio_clause45_links_ok(struct efx_nic *efx,
- unsigned int mmd_mask);
+extern bool mdio_clause45_links_ok(struct efx_nic *efx,
+ unsigned int mmd_mask);
/* Generic transmit disable support though PMAPMD */
extern void mdio_clause45_transmit_disable(struct efx_nic *efx);
diff --git a/drivers/net/sfc/net_driver.h b/drivers/net/sfc/net_driver.h
index 6369f92..1b92186 100644
--- a/drivers/net/sfc/net_driver.h
+++ b/drivers/net/sfc/net_driver.h
@@ -137,8 +137,8 @@ struct efx_tx_buffer {
struct efx_tso_header *tsoh;
dma_addr_t dma_addr;
unsigned short len;
- unsigned char continuation;
- unsigned char unmap_single;
+ bool continuation;
+ bool unmap_single;
unsigned short unmap_len;
};
@@ -162,7 +162,7 @@ struct efx_tx_buffer {
* @txd: The hardware descriptor ring
* @read_count: Current read pointer.
* This is the number of buffers that have been removed from both rings.
- * @stopped: Stopped flag.
+ * @stopped: Stopped count.
* Set if this TX queue is currently stopping its port.
* @insert_count: Current insert pointer
* This is the number of buffers that have been added to the
@@ -265,7 +265,7 @@ struct efx_rx_buffer {
struct efx_rx_queue {
struct efx_nic *efx;
int queue;
- int used;
+ bool used;
struct efx_channel *channel;
struct efx_rx_buffer *buffer;
struct efx_special_buffer rxd;
@@ -359,13 +359,13 @@ struct efx_channel {
int evqnum;
int channel;
int used_flags;
- int enabled;
+ bool enabled;
int irq;
- unsigned int has_interrupt;
+ bool has_interrupt;
unsigned int irq_moderation;
struct net_device *napi_dev;
struct napi_struct napi_str;
- int work_pending;
+ bool work_pending;
struct efx_special_buffer eventq;
unsigned int eventq_read_ptr;
unsigned int last_eventq_read_ptr;
@@ -388,7 +388,7 @@ struct efx_channel {
* access with prefetches.
*/
struct efx_rx_buffer *rx_pkt;
- int rx_pkt_csummed;
+ bool rx_pkt_csummed;
};
@@ -401,8 +401,8 @@ struct efx_channel {
*/
struct efx_blinker {
int led_num;
- int state;
- int resubmit;
+ bool state;
+ bool resubmit;
struct timer_list timer;
};
@@ -430,8 +430,8 @@ struct efx_board {
* have a separate init callback that happens later than
* board init. */
int (*init_leds)(struct efx_nic *efx);
- void (*set_fault_led) (struct efx_nic *efx, int state);
- void (*blink) (struct efx_nic *efx, int start);
+ void (*set_fault_led) (struct efx_nic *efx, bool state);
+ void (*blink) (struct efx_nic *efx, bool start);
void (*fini) (struct efx_nic *nic);
struct efx_blinker blinker;
struct i2c_client *hwmon_client, *ioexp_client;
@@ -714,11 +714,11 @@ struct efx_nic {
struct falcon_nic_data *nic_data;
struct mutex mac_lock;
- int port_enabled;
+ bool port_enabled;
- int port_initialized;
+ bool port_initialized;
struct net_device *net_dev;
- int rx_checksum_enabled;
+ bool rx_checksum_enabled;
atomic_t netif_stop_count;
spinlock_t netif_stop_lock;
@@ -734,13 +734,13 @@ struct efx_nic {
struct efx_phy_operations *phy_op;
void *phy_data;
struct mii_if_info mii;
- unsigned tx_disabled;
+ bool tx_disabled;
- int link_up;
+ bool link_up;
unsigned int link_options;
unsigned int n_link_state_changes;
- int promiscuous;
+ bool promiscuous;
union efx_multicast_hash multicast_hash;
enum efx_fc_type flow_control;
struct work_struct reconfigure_work;
diff --git a/drivers/net/sfc/phy.h b/drivers/net/sfc/phy.h
index 9d02c84..25bd18e 100644
--- a/drivers/net/sfc/phy.h
+++ b/drivers/net/sfc/phy.h
@@ -23,7 +23,7 @@ enum tenxpress_state {
extern void tenxpress_set_state(struct efx_nic *efx,
enum tenxpress_state state);
-extern void tenxpress_phy_blink(struct efx_nic *efx, int blink);
+extern void tenxpress_phy_blink(struct efx_nic *efx, bool blink);
extern void tenxpress_crc_err(struct efx_nic *efx);
/****************************************************************************
diff --git a/drivers/net/sfc/rx.c b/drivers/net/sfc/rx.c
index 0d27dd3..17aa81e 100644
--- a/drivers/net/sfc/rx.c
+++ b/drivers/net/sfc/rx.c
@@ -508,8 +508,8 @@ void efx_rx_work(struct work_struct *data)
static inline void efx_rx_packet__check_len(struct efx_rx_queue *rx_queue,
struct efx_rx_buffer *rx_buf,
- int len, int *discard,
- int *leak_packet)
+ int len, bool *discard,
+ bool *leak_packet)
{
struct efx_nic *efx = rx_queue->efx;
unsigned max_len = rx_buf->len - efx->type->rx_buffer_padding;
@@ -520,7 +520,7 @@ static inline void efx_rx_packet__check_len(struct efx_rx_queue *rx_queue,
/* The packet must be discarded, but this is only a fatal error
* if the caller indicated it was
*/
- *discard = 1;
+ *discard = true;
if ((len > rx_buf->len) && EFX_WORKAROUND_8071(efx)) {
EFX_ERR_RL(efx, " RX queue %d seriously overlength "
@@ -621,11 +621,11 @@ static inline struct sk_buff *efx_rx_mk_skb(struct efx_rx_buffer *rx_buf,
}
void efx_rx_packet(struct efx_rx_queue *rx_queue, unsigned int index,
- unsigned int len, int checksummed, int discard)
+ unsigned int len, bool checksummed, bool discard)
{
struct efx_nic *efx = rx_queue->efx;
struct efx_rx_buffer *rx_buf;
- int leak_packet = 0;
+ bool leak_packet = false;
rx_buf = efx_rx_buffer(rx_queue, index);
EFX_BUG_ON_PARANOID(!rx_buf->data);
@@ -683,11 +683,11 @@ void efx_rx_packet(struct efx_rx_queue *rx_queue, unsigned int index,
/* Handle a received packet. Second half: Touches packet payload. */
void __efx_rx_packet(struct efx_channel *channel,
- struct efx_rx_buffer *rx_buf, int checksummed)
+ struct efx_rx_buffer *rx_buf, bool checksummed)
{
struct efx_nic *efx = channel->efx;
struct sk_buff *skb;
- int lro = efx->net_dev->features & NETIF_F_LRO;
+ bool lro = !!(efx->net_dev->features & NETIF_F_LRO);
/* If we're in loopback test, then pass the packet directly to the
* loopback layer, and free the rx_buf here
diff --git a/drivers/net/sfc/rx.h b/drivers/net/sfc/rx.h
index f35e377..187b110 100644
--- a/drivers/net/sfc/rx.h
+++ b/drivers/net/sfc/rx.h
@@ -24,6 +24,6 @@ void efx_rx_strategy(struct efx_channel *channel);
void efx_fast_push_rx_descriptors(struct efx_rx_queue *rx_queue);
void efx_rx_work(struct work_struct *data);
void __efx_rx_packet(struct efx_channel *channel,
- struct efx_rx_buffer *rx_buf, int checksummed);
+ struct efx_rx_buffer *rx_buf, bool checksummed);
#endif /* EFX_RX_H */
diff --git a/drivers/net/sfc/selftest.c b/drivers/net/sfc/selftest.c
index 53fa4ed..ff7b84c 100644
--- a/drivers/net/sfc/selftest.c
+++ b/drivers/net/sfc/selftest.c
@@ -60,12 +60,12 @@ static const char *payload_msg =
* @payload: Payload used in tests
*/
struct efx_selftest_state {
- int flush;
+ bool flush;
int packet_count;
struct sk_buff **skbs;
/* Checksums are being offloaded */
- int offload_csum;
+ bool offload_csum;
atomic_t rx_good;
atomic_t rx_bad;
@@ -537,7 +537,7 @@ efx_test_loopback(struct efx_tx_queue *tx_queue,
state->packet_count, GFP_KERNEL);
if (!state->skbs)
return -ENOMEM;
- state->flush = 0;
+ state->flush = false;
EFX_LOG(efx, "TX queue %d testing %s loopback with %d "
"packets\n", tx_queue->queue, LOOPBACK_MODE(efx),
@@ -580,7 +580,8 @@ static int efx_test_loopbacks(struct efx_nic *efx,
struct ethtool_cmd ecmd, ecmd_loopback;
struct efx_tx_queue *tx_queue;
enum efx_loopback_mode old_mode, mode;
- int count, rc, link_up;
+ bool link_up;
+ int count, rc;
rc = efx_ethtool_get_settings(efx->net_dev, &ecmd);
if (rc) {
@@ -611,7 +612,7 @@ static int efx_test_loopbacks(struct efx_nic *efx,
continue;
/* Move the port into the specified loopback mode. */
- state->flush = 1;
+ state->flush = true;
efx->loopback_mode = mode;
efx_reconfigure_port(efx);
@@ -664,7 +665,7 @@ static int efx_test_loopbacks(struct efx_nic *efx,
out:
/* Take out of loopback and restore PHY settings */
- state->flush = 1;
+ state->flush = true;
efx->loopback_mode = old_mode;
efx_ethtool_set_settings(efx->net_dev, &ecmd);
@@ -716,7 +717,7 @@ int efx_offline_test(struct efx_nic *efx,
* all received packets will be dropped. Mark the state as
* "flushing" so all inflight packets are dropped */
BUG_ON(efx->loopback_selftest);
- state->flush = 1;
+ state->flush = true;
efx->loopback_selftest = state;
rc = efx_test_loopbacks(efx, tests, loopback_modes);
diff --git a/drivers/net/sfc/tenxpress.c b/drivers/net/sfc/tenxpress.c
index c014606..b92b24b 100644
--- a/drivers/net/sfc/tenxpress.c
+++ b/drivers/net/sfc/tenxpress.c
@@ -122,7 +122,7 @@ struct tenxpress_phy_data {
enum tenxpress_state state;
enum efx_loopback_mode loopback_mode;
atomic_t bad_crc_count;
- int tx_disabled;
+ bool tx_disabled;
int bad_lp_tries;
};
@@ -274,7 +274,7 @@ static int tenxpress_special_reset(struct efx_nic *efx)
return 0;
}
-static void tenxpress_set_bad_lp(struct efx_nic *efx, int bad_lp)
+static void tenxpress_set_bad_lp(struct efx_nic *efx, bool bad_lp)
{
struct tenxpress_phy_data *pd = efx->phy_data;
int reg;
@@ -311,15 +311,15 @@ static void tenxpress_set_bad_lp(struct efx_nic *efx, int bad_lp)
* into a non-10GBT port and if so warn the user that they won't get
* link any time soon as we are 10GBT only, unless caller specified
* not to do this check (it isn't useful in loopback) */
-static int tenxpress_link_ok(struct efx_nic *efx, int check_lp)
+static bool tenxpress_link_ok(struct efx_nic *efx, bool check_lp)
{
- int ok = mdio_clause45_links_ok(efx, TENXPRESS_REQUIRED_DEVS);
+ bool ok = mdio_clause45_links_ok(efx, TENXPRESS_REQUIRED_DEVS);
if (ok) {
- tenxpress_set_bad_lp(efx, 0);
+ tenxpress_set_bad_lp(efx, false);
} else if (check_lp) {
/* Are we plugged into the wrong sort of link? */
- int bad_lp = 0;
+ bool bad_lp = false;
int phy_id = efx->mii.phy_id;
int an_stat = mdio_clause45_read(efx, phy_id, MDIO_MMD_AN,
MDIO_AN_STATUS);
@@ -332,7 +332,7 @@ static int tenxpress_link_ok(struct efx_nic *efx, int check_lp)
* bit has the advantage of not clearing when autoneg
* restarts. */
if (!(xphy_stat & (1 << PMA_PMD_XSTAT_FLP_LBN))) {
- tenxpress_set_bad_lp(efx, 0);
+ tenxpress_set_bad_lp(efx, false);
return ok;
}
@@ -367,8 +367,8 @@ static void tenxpress_phyxs_loopback(struct efx_nic *efx)
static void tenxpress_phy_reconfigure(struct efx_nic *efx)
{
struct tenxpress_phy_data *phy_data = efx->phy_data;
- int loop_change = LOOPBACK_OUT_OF(phy_data, efx,
- TENXPRESS_LOOPBACKS);
+ bool loop_change = LOOPBACK_OUT_OF(phy_data, efx,
+ TENXPRESS_LOOPBACKS);
if (!tenxpress_state_is(efx, TENXPRESS_STATUS_NORMAL))
return;
@@ -388,7 +388,7 @@ static void tenxpress_phy_reconfigure(struct efx_nic *efx)
phy_data->tx_disabled = efx->tx_disabled;
phy_data->loopback_mode = efx->loopback_mode;
- efx->link_up = tenxpress_link_ok(efx, 0);
+ efx->link_up = tenxpress_link_ok(efx, false);
efx->link_options = GM_LPA_10000FULL;
}
@@ -402,10 +402,10 @@ static void tenxpress_phy_clear_interrupt(struct efx_nic *efx)
static int tenxpress_phy_check_hw(struct efx_nic *efx)
{
struct tenxpress_phy_data *phy_data = efx->phy_data;
- int phy_up = tenxpress_state_is(efx, TENXPRESS_STATUS_NORMAL);
- int link_ok;
+ bool phy_up = tenxpress_state_is(efx, TENXPRESS_STATUS_NORMAL);
+ bool link_ok;
- link_ok = phy_up && tenxpress_link_ok(efx, 1);
+ link_ok = phy_up && tenxpress_link_ok(efx, true);
if (link_ok != efx->link_up)
falcon_xmac_sim_phy_event(efx);
@@ -444,7 +444,7 @@ static void tenxpress_phy_fini(struct efx_nic *efx)
/* Set the RX and TX LEDs and Link LED flashing. The other LEDs
* (which probably aren't wired anyway) are left in AUTO mode */
-void tenxpress_phy_blink(struct efx_nic *efx, int blink)
+void tenxpress_phy_blink(struct efx_nic *efx, bool blink)
{
int reg;
diff --git a/drivers/net/sfc/tx.c b/drivers/net/sfc/tx.c
index 5f01371..51429b6 100644
--- a/drivers/net/sfc/tx.c
+++ b/drivers/net/sfc/tx.c
@@ -73,7 +73,7 @@ static inline void efx_dequeue_buffer(struct efx_tx_queue *tx_queue,
pci_unmap_page(pci_dev, unmap_addr, buffer->unmap_len,
PCI_DMA_TODEVICE);
buffer->unmap_len = 0;
- buffer->unmap_single = 0;
+ buffer->unmap_single = false;
}
if (buffer->skb) {
@@ -150,7 +150,7 @@ static inline int efx_enqueue_skb(struct efx_tx_queue *tx_queue,
unsigned int len, unmap_len = 0, fill_level, insert_ptr, misalign;
dma_addr_t dma_addr, unmap_addr = 0;
unsigned int dma_len;
- unsigned unmap_single;
+ bool unmap_single;
int q_space, i = 0;
int rc = NETDEV_TX_OK;
@@ -169,7 +169,7 @@ static inline int efx_enqueue_skb(struct efx_tx_queue *tx_queue,
* since this is more efficient on machines with sparse
* memory.
*/
- unmap_single = 1;
+ unmap_single = true;
dma_addr = pci_map_single(pci_dev, skb->data, len, PCI_DMA_TODEVICE);
/* Process all fragments */
@@ -215,7 +215,7 @@ static inline int efx_enqueue_skb(struct efx_tx_queue *tx_queue,
EFX_BUG_ON_PARANOID(buffer->tsoh);
EFX_BUG_ON_PARANOID(buffer->skb);
EFX_BUG_ON_PARANOID(buffer->len);
- EFX_BUG_ON_PARANOID(buffer->continuation != 1);
+ EFX_BUG_ON_PARANOID(!buffer->continuation);
EFX_BUG_ON_PARANOID(buffer->unmap_len);
dma_len = (((~dma_addr) & efx->type->tx_dma_mask) + 1);
@@ -248,14 +248,14 @@ static inline int efx_enqueue_skb(struct efx_tx_queue *tx_queue,
page_offset = fragment->page_offset;
i++;
/* Map for DMA */
- unmap_single = 0;
+ unmap_single = false;
dma_addr = pci_map_page(pci_dev, page, page_offset, len,
PCI_DMA_TODEVICE);
}
/* Transfer ownership of the skb to the final buffer */
buffer->skb = skb;
- buffer->continuation = 0;
+ buffer->continuation = false;
/* Pass off to hardware */
falcon_push_buffers(tx_queue);
@@ -326,7 +326,7 @@ static inline void efx_dequeue_buffers(struct efx_tx_queue *tx_queue,
}
efx_dequeue_buffer(tx_queue, buffer);
- buffer->continuation = 1;
+ buffer->continuation = true;
buffer->len = 0;
++tx_queue->read_count;
@@ -428,7 +428,7 @@ int efx_probe_tx_queue(struct efx_tx_queue *tx_queue)
if (!tx_queue->buffer)
return -ENOMEM;
for (i = 0; i <= efx->type->txd_ring_mask; ++i)
- tx_queue->buffer[i].continuation = 1;
+ tx_queue->buffer[i].continuation = true;
/* Allocate hardware ring */
rc = falcon_probe_tx(tx_queue);
@@ -469,7 +469,7 @@ void efx_release_tx_buffers(struct efx_tx_queue *tx_queue)
buffer = &tx_queue->buffer[tx_queue->read_count &
tx_queue->efx->type->txd_ring_mask];
efx_dequeue_buffer(tx_queue, buffer);
- buffer->continuation = 1;
+ buffer->continuation = true;
buffer->len = 0;
++tx_queue->read_count;
@@ -567,7 +567,7 @@ struct tso_state {
/* DMA address and length of the whole fragment */
unsigned int unmap_len;
dma_addr_t unmap_addr;
- unsigned int unmap_single;
+ bool unmap_single;
} ifc;
struct {
@@ -746,7 +746,7 @@ static int efx_tx_queue_insert(struct efx_tx_queue *tx_queue,
EFX_BUG_ON_PARANOID(buffer->len);
EFX_BUG_ON_PARANOID(buffer->unmap_len);
EFX_BUG_ON_PARANOID(buffer->skb);
- EFX_BUG_ON_PARANOID(buffer->continuation != 1);
+ EFX_BUG_ON_PARANOID(!buffer->continuation);
EFX_BUG_ON_PARANOID(buffer->tsoh);
buffer->dma_addr = dma_addr;
@@ -792,7 +792,7 @@ static inline void efx_tso_put_header(struct efx_tx_queue *tx_queue,
EFX_BUG_ON_PARANOID(buffer->len);
EFX_BUG_ON_PARANOID(buffer->unmap_len);
EFX_BUG_ON_PARANOID(buffer->skb);
- EFX_BUG_ON_PARANOID(buffer->continuation != 1);
+ EFX_BUG_ON_PARANOID(!buffer->continuation);
EFX_BUG_ON_PARANOID(buffer->tsoh);
buffer->len = len;
buffer->dma_addr = tsoh->dma_addr;
@@ -816,7 +816,7 @@ static void efx_enqueue_unwind(struct efx_tx_queue *tx_queue)
efx_tsoh_free(tx_queue, buffer);
EFX_BUG_ON_PARANOID(buffer->skb);
buffer->len = 0;
- buffer->continuation = 1;
+ buffer->continuation = true;
if (buffer->unmap_len) {
unmap_addr = (buffer->dma_addr + buffer->len -
buffer->unmap_len);
@@ -855,7 +855,7 @@ static inline void tso_start(struct tso_state *st, const struct sk_buff *skb)
st->packet_space = st->p.full_packet_size;
st->remaining_len = skb->len - st->p.header_length;
st->ifc.unmap_len = 0;
- st->ifc.unmap_single = 0;
+ st->ifc.unmap_single = false;
}
static inline int tso_get_fragment(struct tso_state *st, struct efx_nic *efx,
@@ -865,7 +865,7 @@ static inline int tso_get_fragment(struct tso_state *st, struct efx_nic *efx,
frag->page_offset, frag->size,
PCI_DMA_TODEVICE);
if (likely(!pci_dma_mapping_error(efx->pci_dev, st->ifc.unmap_addr))) {
- st->ifc.unmap_single = 0;
+ st->ifc.unmap_single = false;
st->ifc.unmap_len = frag->size;
st->ifc.len = frag->size;
st->ifc.dma_addr = st->ifc.unmap_addr;
@@ -884,7 +884,7 @@ tso_get_head_fragment(struct tso_state *st, struct efx_nic *efx,
st->ifc.unmap_addr = pci_map_single(efx->pci_dev, skb->data + hl,
len, PCI_DMA_TODEVICE);
if (likely(!pci_dma_mapping_error(efx->pci_dev, st->ifc.unmap_addr))) {
- st->ifc.unmap_single = 1;
+ st->ifc.unmap_single = true;
st->ifc.unmap_len = len;
st->ifc.len = len;
st->ifc.dma_addr = st->ifc.unmap_addr;
diff --git a/drivers/net/sfc/xfp_phy.c b/drivers/net/sfc/xfp_phy.c
index f3684ad..fd4045b 100644
--- a/drivers/net/sfc/xfp_phy.c
+++ b/drivers/net/sfc/xfp_phy.c
@@ -40,7 +40,7 @@ void xfp_set_led(struct efx_nic *p, int led, int mode)
}
struct xfp_phy_data {
- int tx_disabled;
+ bool tx_disabled;
};
#define XFP_MAX_RESET_TIME 500
@@ -151,7 +151,7 @@ static void xfp_phy_reconfigure(struct efx_nic *efx)
static void xfp_phy_fini(struct efx_nic *efx)
{
/* Clobber the LED if it was blinking */
- efx->board_info.blink(efx, 0);
+ efx->board_info.blink(efx, false);
/* Free the context block */
kfree(efx->phy_data);
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 18/52] sfc: Set net_device::vlan_features appropriately
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (16 preceding siblings ...)
2008-09-01 11:46 ` [PATCH 17/52] sfc: Use explicit bool for boolean variables, parameters and return values Ben Hutchings
@ 2008-09-01 11:46 ` Ben Hutchings
2008-09-01 11:47 ` [PATCH 19/52] sfc: Cleaned up struct tso_state fields Ben Hutchings
` (33 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:46 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/efx.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c
index 7eb11d3..022dc36 100644
--- a/drivers/net/sfc/efx.c
+++ b/drivers/net/sfc/efx.c
@@ -2092,6 +2092,9 @@ static int __devinit efx_pci_probe(struct pci_dev *pci_dev,
NETIF_F_HIGHDMA | NETIF_F_TSO);
if (lro)
net_dev->features |= NETIF_F_LRO;
+ /* Mask for features that also apply to VLAN devices */
+ net_dev->vlan_features |= (NETIF_F_ALL_CSUM | NETIF_F_SG |
+ NETIF_F_HIGHDMA);
efx = netdev_priv(net_dev);
pci_set_drvdata(pci_dev, efx);
rc = efx_init_struct(efx, type, pci_dev, net_dev);
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 19/52] sfc: Cleaned up struct tso_state fields
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (17 preceding siblings ...)
2008-09-01 11:46 ` [PATCH 18/52] sfc: Set net_device::vlan_features appropriately Ben Hutchings
@ 2008-09-01 11:47 ` Ben Hutchings
2008-09-01 11:47 ` [PATCH 20/52] sfc: Removed forced inlining of long functions Ben Hutchings
` (32 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:47 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
Squashed nested structures.
Renamed remaining_len to out_len, ifc.len to in_len, header_length to
header_len.
Moved ipv4_id into the group of output variables where it belongs.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/tx.c | 161 +++++++++++++++++++++++---------------------------
1 files changed, 75 insertions(+), 86 deletions(-)
diff --git a/drivers/net/sfc/tx.c b/drivers/net/sfc/tx.c
index 51429b6..550856f 100644
--- a/drivers/net/sfc/tx.c
+++ b/drivers/net/sfc/tx.c
@@ -540,46 +540,37 @@ void efx_remove_tx_queue(struct efx_tx_queue *tx_queue)
/**
* struct tso_state - TSO state for an SKB
- * @remaining_len: Bytes of data we've yet to segment
+ * @out_len: Remaining length in current segment
* @seqnum: Current sequence number
+ * @ipv4_id: Current IPv4 ID, host endian
* @packet_space: Remaining space in current packet
- * @ifc: Input fragment cursor.
- * Where we are in the current fragment of the incoming SKB. These
- * values get updated in place when we split a fragment over
- * multiple packets.
- * @p: Parameters.
- * These values are set once at the start of the TSO send and do
- * not get changed as the routine progresses.
+ * @dma_addr: DMA address of current position
+ * @in_len: Remaining length in current SKB fragment
+ * @unmap_len: Length of SKB fragment
+ * @unmap_addr: DMA address of SKB fragment
+ * @unmap_single: DMA single vs page mapping flag
+ * @header_len: Number of bytes of header
+ * @full_packet_size: Number of bytes to put in each outgoing segment
*
* The state used during segmentation. It is put into this data structure
* just to make it easy to pass into inline functions.
*/
struct tso_state {
- unsigned remaining_len;
+ /* Output position */
+ unsigned out_len;
unsigned seqnum;
+ unsigned ipv4_id;
unsigned packet_space;
- struct {
- /* DMA address of current position */
- dma_addr_t dma_addr;
- /* Remaining length */
- unsigned int len;
- /* DMA address and length of the whole fragment */
- unsigned int unmap_len;
- dma_addr_t unmap_addr;
- bool unmap_single;
- } ifc;
-
- struct {
- /* The number of bytes of header */
- unsigned int header_length;
-
- /* The number of bytes to put in each outgoing segment. */
- int full_packet_size;
-
- /* Current IPv4 ID, host endian. */
- unsigned ipv4_id;
- } p;
+ /* Input position */
+ dma_addr_t dma_addr;
+ unsigned in_len;
+ unsigned unmap_len;
+ dma_addr_t unmap_addr;
+ bool unmap_single;
+
+ unsigned header_len;
+ int full_packet_size;
};
@@ -840,35 +831,34 @@ static inline void tso_start(struct tso_state *st, const struct sk_buff *skb)
/* All ethernet/IP/TCP headers combined size is TCP header size
* plus offset of TCP header relative to start of packet.
*/
- st->p.header_length = ((tcp_hdr(skb)->doff << 2u)
- + PTR_DIFF(tcp_hdr(skb), skb->data));
- st->p.full_packet_size = (st->p.header_length
- + skb_shinfo(skb)->gso_size);
+ st->header_len = ((tcp_hdr(skb)->doff << 2u)
+ + PTR_DIFF(tcp_hdr(skb), skb->data));
+ st->full_packet_size = st->header_len + skb_shinfo(skb)->gso_size;
- st->p.ipv4_id = ntohs(ip_hdr(skb)->id);
+ st->ipv4_id = ntohs(ip_hdr(skb)->id);
st->seqnum = ntohl(tcp_hdr(skb)->seq);
EFX_BUG_ON_PARANOID(tcp_hdr(skb)->urg);
EFX_BUG_ON_PARANOID(tcp_hdr(skb)->syn);
EFX_BUG_ON_PARANOID(tcp_hdr(skb)->rst);
- st->packet_space = st->p.full_packet_size;
- st->remaining_len = skb->len - st->p.header_length;
- st->ifc.unmap_len = 0;
- st->ifc.unmap_single = false;
+ st->packet_space = st->full_packet_size;
+ st->out_len = skb->len - st->header_len;
+ st->unmap_len = 0;
+ st->unmap_single = false;
}
static inline int tso_get_fragment(struct tso_state *st, struct efx_nic *efx,
skb_frag_t *frag)
{
- st->ifc.unmap_addr = pci_map_page(efx->pci_dev, frag->page,
- frag->page_offset, frag->size,
- PCI_DMA_TODEVICE);
- if (likely(!pci_dma_mapping_error(efx->pci_dev, st->ifc.unmap_addr))) {
- st->ifc.unmap_single = false;
- st->ifc.unmap_len = frag->size;
- st->ifc.len = frag->size;
- st->ifc.dma_addr = st->ifc.unmap_addr;
+ st->unmap_addr = pci_map_page(efx->pci_dev, frag->page,
+ frag->page_offset, frag->size,
+ PCI_DMA_TODEVICE);
+ if (likely(!pci_dma_mapping_error(efx->pci_dev, st->unmap_addr))) {
+ st->unmap_single = false;
+ st->unmap_len = frag->size;
+ st->in_len = frag->size;
+ st->dma_addr = st->unmap_addr;
return 0;
}
return -ENOMEM;
@@ -878,16 +868,16 @@ static inline int
tso_get_head_fragment(struct tso_state *st, struct efx_nic *efx,
const struct sk_buff *skb)
{
- int hl = st->p.header_length;
+ int hl = st->header_len;
int len = skb_headlen(skb) - hl;
- st->ifc.unmap_addr = pci_map_single(efx->pci_dev, skb->data + hl,
- len, PCI_DMA_TODEVICE);
- if (likely(!pci_dma_mapping_error(efx->pci_dev, st->ifc.unmap_addr))) {
- st->ifc.unmap_single = true;
- st->ifc.unmap_len = len;
- st->ifc.len = len;
- st->ifc.dma_addr = st->ifc.unmap_addr;
+ st->unmap_addr = pci_map_single(efx->pci_dev, skb->data + hl,
+ len, PCI_DMA_TODEVICE);
+ if (likely(!pci_dma_mapping_error(efx->pci_dev, st->unmap_addr))) {
+ st->unmap_single = true;
+ st->unmap_len = len;
+ st->in_len = len;
+ st->dma_addr = st->unmap_addr;
return 0;
}
return -ENOMEM;
@@ -911,38 +901,38 @@ static inline int tso_fill_packet_with_fragment(struct efx_tx_queue *tx_queue,
struct efx_tx_buffer *buffer;
int n, end_of_packet, rc;
- if (st->ifc.len == 0)
+ if (st->in_len == 0)
return 0;
if (st->packet_space == 0)
return 0;
- EFX_BUG_ON_PARANOID(st->ifc.len <= 0);
+ EFX_BUG_ON_PARANOID(st->in_len <= 0);
EFX_BUG_ON_PARANOID(st->packet_space <= 0);
- n = min(st->ifc.len, st->packet_space);
+ n = min(st->in_len, st->packet_space);
st->packet_space -= n;
- st->remaining_len -= n;
- st->ifc.len -= n;
+ st->out_len -= n;
+ st->in_len -= n;
- rc = efx_tx_queue_insert(tx_queue, st->ifc.dma_addr, n, &buffer);
+ rc = efx_tx_queue_insert(tx_queue, st->dma_addr, n, &buffer);
if (likely(rc == 0)) {
- if (st->remaining_len == 0)
+ if (st->out_len == 0)
/* Transfer ownership of the skb */
buffer->skb = skb;
- end_of_packet = st->remaining_len == 0 || st->packet_space == 0;
+ end_of_packet = st->out_len == 0 || st->packet_space == 0;
buffer->continuation = !end_of_packet;
- if (st->ifc.len == 0) {
+ if (st->in_len == 0) {
/* Transfer ownership of the pci mapping */
- buffer->unmap_len = st->ifc.unmap_len;
- buffer->unmap_single = st->ifc.unmap_single;
- st->ifc.unmap_len = 0;
+ buffer->unmap_len = st->unmap_len;
+ buffer->unmap_single = st->unmap_single;
+ st->unmap_len = 0;
}
}
- st->ifc.dma_addr += n;
+ st->dma_addr += n;
return rc;
}
@@ -967,7 +957,7 @@ static inline int tso_start_new_packet(struct efx_tx_queue *tx_queue,
u8 *header;
/* Allocate a DMA-mapped header buffer. */
- if (likely(TSOH_SIZE(st->p.header_length) <= TSOH_STD_SIZE)) {
+ if (likely(TSOH_SIZE(st->header_len) <= TSOH_STD_SIZE)) {
if (tx_queue->tso_headers_free == NULL) {
if (efx_tsoh_block_alloc(tx_queue))
return -1;
@@ -978,7 +968,7 @@ static inline int tso_start_new_packet(struct efx_tx_queue *tx_queue,
tsoh->unmap_len = 0;
} else {
tx_queue->tso_long_headers++;
- tsoh = efx_tsoh_heap_alloc(tx_queue, st->p.header_length);
+ tsoh = efx_tsoh_heap_alloc(tx_queue, st->header_len);
if (unlikely(!tsoh))
return -1;
}
@@ -988,33 +978,32 @@ static inline int tso_start_new_packet(struct efx_tx_queue *tx_queue,
tsoh_iph = (struct iphdr *)(header + SKB_IPV4_OFF(skb));
/* Copy and update the headers. */
- memcpy(header, skb->data, st->p.header_length);
+ memcpy(header, skb->data, st->header_len);
tsoh_th->seq = htonl(st->seqnum);
st->seqnum += skb_shinfo(skb)->gso_size;
- if (st->remaining_len > skb_shinfo(skb)->gso_size) {
+ if (st->out_len > skb_shinfo(skb)->gso_size) {
/* This packet will not finish the TSO burst. */
- ip_length = st->p.full_packet_size - ETH_HDR_LEN(skb);
+ ip_length = st->full_packet_size - ETH_HDR_LEN(skb);
tsoh_th->fin = 0;
tsoh_th->psh = 0;
} else {
/* This packet will be the last in the TSO burst. */
- ip_length = (st->p.header_length - ETH_HDR_LEN(skb)
- + st->remaining_len);
+ ip_length = st->header_len - ETH_HDR_LEN(skb) + st->out_len;
tsoh_th->fin = tcp_hdr(skb)->fin;
tsoh_th->psh = tcp_hdr(skb)->psh;
}
tsoh_iph->tot_len = htons(ip_length);
/* Linux leaves suitable gaps in the IP ID space for us to fill. */
- tsoh_iph->id = htons(st->p.ipv4_id);
- st->p.ipv4_id++;
+ tsoh_iph->id = htons(st->ipv4_id);
+ st->ipv4_id++;
st->packet_space = skb_shinfo(skb)->gso_size;
++tx_queue->tso_packets;
/* Form a descriptor for this header. */
- efx_tso_put_header(tx_queue, tsoh, st->p.header_length);
+ efx_tso_put_header(tx_queue, tsoh, st->header_len);
return 0;
}
@@ -1048,7 +1037,7 @@ static int efx_enqueue_skb_tso(struct efx_tx_queue *tx_queue,
/* Assume that skb header area contains exactly the headers, and
* all payload is in the frag list.
*/
- if (skb_headlen(skb) == state.p.header_length) {
+ if (skb_headlen(skb) == state.header_len) {
/* Grab the first payload fragment. */
EFX_BUG_ON_PARANOID(skb_shinfo(skb)->nr_frags < 1);
frag_i = 0;
@@ -1072,7 +1061,7 @@ static int efx_enqueue_skb_tso(struct efx_tx_queue *tx_queue,
goto stop;
/* Move onto the next fragment? */
- if (state.ifc.len == 0) {
+ if (state.in_len == 0) {
if (++frag_i >= skb_shinfo(skb)->nr_frags)
/* End of payload reached. */
break;
@@ -1108,13 +1097,13 @@ static int efx_enqueue_skb_tso(struct efx_tx_queue *tx_queue,
unwind:
/* Free the DMA mapping we were in the process of writing out */
- if (state.ifc.unmap_len) {
- if (state.ifc.unmap_single)
- pci_unmap_single(efx->pci_dev, state.ifc.unmap_addr,
- state.ifc.unmap_len, PCI_DMA_TODEVICE);
+ if (state.unmap_len) {
+ if (state.unmap_single)
+ pci_unmap_single(efx->pci_dev, state.unmap_addr,
+ state.unmap_len, PCI_DMA_TODEVICE);
else
- pci_unmap_page(efx->pci_dev, state.ifc.unmap_addr,
- state.ifc.unmap_len, PCI_DMA_TODEVICE);
+ pci_unmap_page(efx->pci_dev, state.unmap_addr,
+ state.unmap_len, PCI_DMA_TODEVICE);
}
efx_enqueue_unwind(tx_queue);
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 20/52] sfc: Removed forced inlining of long functions
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (18 preceding siblings ...)
2008-09-01 11:47 ` [PATCH 19/52] sfc: Cleaned up struct tso_state fields Ben Hutchings
@ 2008-09-01 11:47 ` Ben Hutchings
2008-09-01 11:47 ` [PATCH 21/52] sfc: Export boot configuration in EEPROM through ethtool Ben Hutchings
` (31 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:47 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
gcc will automatically inline static functions with only one caller, and
may inline other functions depending on the kernel configuration and size
of the intermediate code.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/efx.c | 2 +-
drivers/net/sfc/falcon.c | 8 +++---
drivers/net/sfc/rx.c | 42 ++++++++++++++++++++--------------------
drivers/net/sfc/tx.c | 47 ++++++++++++++++++++++-----------------------
4 files changed, 49 insertions(+), 50 deletions(-)
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c
index 022dc36..9f1ac3a 100644
--- a/drivers/net/sfc/efx.c
+++ b/drivers/net/sfc/efx.c
@@ -158,7 +158,7 @@ static void efx_fini_channels(struct efx_nic *efx);
* never be concurrently called more than once on the same channel,
* though different channels may be being processed concurrently.
*/
-static inline int efx_process_channel(struct efx_channel *channel, int rx_quota)
+static int efx_process_channel(struct efx_channel *channel, int rx_quota)
{
int rxdmaqs;
struct efx_rx_queue *rx_queue;
diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c
index fb06971..9a13e5c 100644
--- a/drivers/net/sfc/falcon.c
+++ b/drivers/net/sfc/falcon.c
@@ -815,8 +815,8 @@ void falcon_generate_event(struct efx_channel *channel, efx_qword_t *event)
* Falcon batches TX completion events; the message we receive is of
* the form "complete all TX events up to this index".
*/
-static inline void falcon_handle_tx_event(struct efx_channel *channel,
- efx_qword_t *event)
+static void falcon_handle_tx_event(struct efx_channel *channel,
+ efx_qword_t *event)
{
unsigned int tx_ev_desc_ptr;
unsigned int tx_ev_q_label;
@@ -952,8 +952,8 @@ static void falcon_handle_rx_bad_index(struct efx_rx_queue *rx_queue,
* Also "is multicast" and "matches multicast filter" flags can be used to
* discard non-matching multicast packets.
*/
-static inline int falcon_handle_rx_event(struct efx_channel *channel,
- const efx_qword_t *event)
+static int falcon_handle_rx_event(struct efx_channel *channel,
+ const efx_qword_t *event)
{
unsigned int rx_ev_q_label, rx_ev_desc_ptr, rx_ev_byte_cnt;
unsigned int rx_ev_hdr_type, rx_ev_mcast_pkt;
diff --git a/drivers/net/sfc/rx.c b/drivers/net/sfc/rx.c
index 17aa81e..fa1a62a 100644
--- a/drivers/net/sfc/rx.c
+++ b/drivers/net/sfc/rx.c
@@ -212,8 +212,8 @@ void efx_lro_fini(struct net_lro_mgr *lro_mgr)
* and populates a struct efx_rx_buffer with the relevant
* information. Return a negative error code or 0 on success.
*/
-static inline int efx_init_rx_buffer_skb(struct efx_rx_queue *rx_queue,
- struct efx_rx_buffer *rx_buf)
+static int efx_init_rx_buffer_skb(struct efx_rx_queue *rx_queue,
+ struct efx_rx_buffer *rx_buf)
{
struct efx_nic *efx = rx_queue->efx;
struct net_device *net_dev = efx->net_dev;
@@ -252,8 +252,8 @@ static inline int efx_init_rx_buffer_skb(struct efx_rx_queue *rx_queue,
* and populates a struct efx_rx_buffer with the relevant
* information. Return a negative error code or 0 on success.
*/
-static inline int efx_init_rx_buffer_page(struct efx_rx_queue *rx_queue,
- struct efx_rx_buffer *rx_buf)
+static int efx_init_rx_buffer_page(struct efx_rx_queue *rx_queue,
+ struct efx_rx_buffer *rx_buf)
{
struct efx_nic *efx = rx_queue->efx;
int bytes, space, offset;
@@ -319,8 +319,8 @@ static inline int efx_init_rx_buffer_page(struct efx_rx_queue *rx_queue,
* and populates a struct efx_rx_buffer with the relevant
* information.
*/
-static inline int efx_init_rx_buffer(struct efx_rx_queue *rx_queue,
- struct efx_rx_buffer *new_rx_buf)
+static int efx_init_rx_buffer(struct efx_rx_queue *rx_queue,
+ struct efx_rx_buffer *new_rx_buf)
{
int rc = 0;
@@ -340,8 +340,8 @@ static inline int efx_init_rx_buffer(struct efx_rx_queue *rx_queue,
return rc;
}
-static inline void efx_unmap_rx_buffer(struct efx_nic *efx,
- struct efx_rx_buffer *rx_buf)
+static void efx_unmap_rx_buffer(struct efx_nic *efx,
+ struct efx_rx_buffer *rx_buf)
{
if (rx_buf->page) {
EFX_BUG_ON_PARANOID(rx_buf->skb);
@@ -357,8 +357,8 @@ static inline void efx_unmap_rx_buffer(struct efx_nic *efx,
}
}
-static inline void efx_free_rx_buffer(struct efx_nic *efx,
- struct efx_rx_buffer *rx_buf)
+static void efx_free_rx_buffer(struct efx_nic *efx,
+ struct efx_rx_buffer *rx_buf)
{
if (rx_buf->page) {
__free_pages(rx_buf->page, efx->rx_buffer_order);
@@ -369,8 +369,8 @@ static inline void efx_free_rx_buffer(struct efx_nic *efx,
}
}
-static inline void efx_fini_rx_buffer(struct efx_rx_queue *rx_queue,
- struct efx_rx_buffer *rx_buf)
+static void efx_fini_rx_buffer(struct efx_rx_queue *rx_queue,
+ struct efx_rx_buffer *rx_buf)
{
efx_unmap_rx_buffer(rx_queue->efx, rx_buf);
efx_free_rx_buffer(rx_queue->efx, rx_buf);
@@ -506,10 +506,10 @@ void efx_rx_work(struct work_struct *data)
efx_schedule_slow_fill(rx_queue, 1);
}
-static inline void efx_rx_packet__check_len(struct efx_rx_queue *rx_queue,
- struct efx_rx_buffer *rx_buf,
- int len, bool *discard,
- bool *leak_packet)
+static void efx_rx_packet__check_len(struct efx_rx_queue *rx_queue,
+ struct efx_rx_buffer *rx_buf,
+ int len, bool *discard,
+ bool *leak_packet)
{
struct efx_nic *efx = rx_queue->efx;
unsigned max_len = rx_buf->len - efx->type->rx_buffer_padding;
@@ -546,8 +546,8 @@ static inline void efx_rx_packet__check_len(struct efx_rx_queue *rx_queue,
* Handles driverlink veto, and passes the fragment up via
* the appropriate LRO method
*/
-static inline void efx_rx_packet_lro(struct efx_channel *channel,
- struct efx_rx_buffer *rx_buf)
+static void efx_rx_packet_lro(struct efx_channel *channel,
+ struct efx_rx_buffer *rx_buf)
{
struct net_lro_mgr *lro_mgr = &channel->lro_mgr;
void *priv = channel;
@@ -574,9 +574,9 @@ static inline void efx_rx_packet_lro(struct efx_channel *channel,
}
/* Allocate and construct an SKB around a struct page.*/
-static inline struct sk_buff *efx_rx_mk_skb(struct efx_rx_buffer *rx_buf,
- struct efx_nic *efx,
- int hdr_len)
+static struct sk_buff *efx_rx_mk_skb(struct efx_rx_buffer *rx_buf,
+ struct efx_nic *efx,
+ int hdr_len)
{
struct sk_buff *skb;
diff --git a/drivers/net/sfc/tx.c b/drivers/net/sfc/tx.c
index 550856f..0e9889c 100644
--- a/drivers/net/sfc/tx.c
+++ b/drivers/net/sfc/tx.c
@@ -47,7 +47,7 @@ void efx_stop_queue(struct efx_nic *efx)
* We want to be able to nest calls to netif_stop_queue(), since each
* channel can have an individual stop on the queue.
*/
-inline void efx_wake_queue(struct efx_nic *efx)
+void efx_wake_queue(struct efx_nic *efx)
{
local_bh_disable();
if (atomic_dec_and_lock(&efx->netif_stop_count,
@@ -59,8 +59,8 @@ inline void efx_wake_queue(struct efx_nic *efx)
local_bh_enable();
}
-static inline void efx_dequeue_buffer(struct efx_tx_queue *tx_queue,
- struct efx_tx_buffer *buffer)
+static void efx_dequeue_buffer(struct efx_tx_queue *tx_queue,
+ struct efx_tx_buffer *buffer)
{
if (buffer->unmap_len) {
struct pci_dev *pci_dev = tx_queue->efx->pci_dev;
@@ -110,8 +110,8 @@ static void efx_fini_tso(struct efx_tx_queue *tx_queue);
static void efx_tsoh_heap_free(struct efx_tx_queue *tx_queue,
struct efx_tso_header *tsoh);
-static inline void efx_tsoh_free(struct efx_tx_queue *tx_queue,
- struct efx_tx_buffer *buffer)
+static void efx_tsoh_free(struct efx_tx_queue *tx_queue,
+ struct efx_tx_buffer *buffer)
{
if (buffer->tsoh) {
if (likely(!buffer->tsoh->unmap_len)) {
@@ -138,8 +138,8 @@ static inline void efx_tsoh_free(struct efx_tx_queue *tx_queue,
* Returns NETDEV_TX_OK or NETDEV_TX_BUSY
* You must hold netif_tx_lock() to call this function.
*/
-static inline int efx_enqueue_skb(struct efx_tx_queue *tx_queue,
- const struct sk_buff *skb)
+static int efx_enqueue_skb(struct efx_tx_queue *tx_queue,
+ const struct sk_buff *skb)
{
struct efx_nic *efx = tx_queue->efx;
struct pci_dev *pci_dev = efx->pci_dev;
@@ -305,8 +305,8 @@ static inline int efx_enqueue_skb(struct efx_tx_queue *tx_queue,
* This removes packets from the TX queue, up to and including the
* specified index.
*/
-static inline void efx_dequeue_buffers(struct efx_tx_queue *tx_queue,
- unsigned int index)
+static void efx_dequeue_buffers(struct efx_tx_queue *tx_queue,
+ unsigned int index)
{
struct efx_nic *efx = tx_queue->efx;
unsigned int stop_index, read_ptr;
@@ -578,7 +578,7 @@ struct tso_state {
* Verify that our various assumptions about sk_buffs and the conditions
* under which TSO will be attempted hold true.
*/
-static inline void efx_tso_check_safe(const struct sk_buff *skb)
+static void efx_tso_check_safe(const struct sk_buff *skb)
{
EFX_BUG_ON_PARANOID(skb->protocol != htons(ETH_P_IP));
EFX_BUG_ON_PARANOID(((struct ethhdr *)skb->data)->h_proto !=
@@ -772,8 +772,8 @@ static int efx_tx_queue_insert(struct efx_tx_queue *tx_queue,
* a single fragment, and we know it doesn't cross a page boundary. It
* also allows us to not worry about end-of-packet etc.
*/
-static inline void efx_tso_put_header(struct efx_tx_queue *tx_queue,
- struct efx_tso_header *tsoh, unsigned len)
+static void efx_tso_put_header(struct efx_tx_queue *tx_queue,
+ struct efx_tso_header *tsoh, unsigned len)
{
struct efx_tx_buffer *buffer;
@@ -826,7 +826,7 @@ static void efx_enqueue_unwind(struct efx_tx_queue *tx_queue)
/* Parse the SKB header and initialise state. */
-static inline void tso_start(struct tso_state *st, const struct sk_buff *skb)
+static void tso_start(struct tso_state *st, const struct sk_buff *skb)
{
/* All ethernet/IP/TCP headers combined size is TCP header size
* plus offset of TCP header relative to start of packet.
@@ -848,8 +848,8 @@ static inline void tso_start(struct tso_state *st, const struct sk_buff *skb)
st->unmap_single = false;
}
-static inline int tso_get_fragment(struct tso_state *st, struct efx_nic *efx,
- skb_frag_t *frag)
+static int tso_get_fragment(struct tso_state *st, struct efx_nic *efx,
+ skb_frag_t *frag)
{
st->unmap_addr = pci_map_page(efx->pci_dev, frag->page,
frag->page_offset, frag->size,
@@ -864,9 +864,8 @@ static inline int tso_get_fragment(struct tso_state *st, struct efx_nic *efx,
return -ENOMEM;
}
-static inline int
-tso_get_head_fragment(struct tso_state *st, struct efx_nic *efx,
- const struct sk_buff *skb)
+static int tso_get_head_fragment(struct tso_state *st, struct efx_nic *efx,
+ const struct sk_buff *skb)
{
int hl = st->header_len;
int len = skb_headlen(skb) - hl;
@@ -894,9 +893,9 @@ tso_get_head_fragment(struct tso_state *st, struct efx_nic *efx,
* of fragment or end-of-packet. Return 0 on success, 1 if not enough
* space in @tx_queue.
*/
-static inline int tso_fill_packet_with_fragment(struct efx_tx_queue *tx_queue,
- const struct sk_buff *skb,
- struct tso_state *st)
+static int tso_fill_packet_with_fragment(struct efx_tx_queue *tx_queue,
+ const struct sk_buff *skb,
+ struct tso_state *st)
{
struct efx_tx_buffer *buffer;
int n, end_of_packet, rc;
@@ -946,9 +945,9 @@ static inline int tso_fill_packet_with_fragment(struct efx_tx_queue *tx_queue,
* Generate a new header and prepare for the new packet. Return 0 on
* success, or -1 if failed to alloc header.
*/
-static inline int tso_start_new_packet(struct efx_tx_queue *tx_queue,
- const struct sk_buff *skb,
- struct tso_state *st)
+static int tso_start_new_packet(struct efx_tx_queue *tx_queue,
+ const struct sk_buff *skb,
+ struct tso_state *st)
{
struct efx_tso_header *tsoh;
struct iphdr *tsoh_iph;
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 21/52] sfc: Export boot configuration in EEPROM through ethtool
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (19 preceding siblings ...)
2008-09-01 11:47 ` [PATCH 20/52] sfc: Removed forced inlining of long functions Ben Hutchings
@ 2008-09-01 11:47 ` Ben Hutchings
2008-09-01 11:47 ` [PATCH 22/52] sfc: Move CPU counting for RSS into a separate function, efx_wanted_rx_queues() Ben Hutchings
` (30 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:47 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
Extend the SPI device setup code to support this.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/ethtool.c | 52 ++++++
drivers/net/sfc/falcon.c | 358 +++++++++++++++++++++++++++++++++------
drivers/net/sfc/falcon_hwdefs.h | 35 ++++
drivers/net/sfc/net_driver.h | 7 +
drivers/net/sfc/spi.h | 89 +++++-----
5 files changed, 446 insertions(+), 95 deletions(-)
diff --git a/drivers/net/sfc/ethtool.c b/drivers/net/sfc/ethtool.c
index 6142c3a..72a2eb2 100644
--- a/drivers/net/sfc/ethtool.c
+++ b/drivers/net/sfc/ethtool.c
@@ -17,6 +17,7 @@
#include "ethtool.h"
#include "falcon.h"
#include "gmii.h"
+#include "spi.h"
#include "mac.h"
const char *efx_loopback_mode_names[] = {
@@ -171,6 +172,11 @@ static struct efx_ethtool_stat efx_ethtool_stats[] = {
/* Number of ethtool statistics */
#define EFX_ETHTOOL_NUM_STATS ARRAY_SIZE(efx_ethtool_stats)
+/* EEPROM range with gPXE configuration */
+#define EFX_ETHTOOL_EEPROM_MAGIC 0xEFAB
+#define EFX_ETHTOOL_EEPROM_MIN 0x100U
+#define EFX_ETHTOOL_EEPROM_MAX 0x400U
+
/**************************************************************************
*
* Ethtool operations
@@ -532,6 +538,49 @@ static u32 efx_ethtool_get_link(struct net_device *net_dev)
return efx->link_up;
}
+static int efx_ethtool_get_eeprom_len(struct net_device *net_dev)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+ struct efx_spi_device *spi = efx->spi_eeprom;
+
+ if (!spi)
+ return 0;
+ return min(spi->size, EFX_ETHTOOL_EEPROM_MAX) -
+ min(spi->size, EFX_ETHTOOL_EEPROM_MIN);
+}
+
+static int efx_ethtool_get_eeprom(struct net_device *net_dev,
+ struct ethtool_eeprom *eeprom, u8 *buf)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+ struct efx_spi_device *spi = efx->spi_eeprom;
+ size_t len;
+ int rc;
+
+ rc = falcon_spi_read(spi, eeprom->offset + EFX_ETHTOOL_EEPROM_MIN,
+ eeprom->len, &len, buf);
+ eeprom->magic = EFX_ETHTOOL_EEPROM_MAGIC;
+ eeprom->len = len;
+ return rc;
+}
+
+static int efx_ethtool_set_eeprom(struct net_device *net_dev,
+ struct ethtool_eeprom *eeprom, u8 *buf)
+{
+ struct efx_nic *efx = netdev_priv(net_dev);
+ struct efx_spi_device *spi = efx->spi_eeprom;
+ size_t len;
+ int rc;
+
+ if (eeprom->magic != EFX_ETHTOOL_EEPROM_MAGIC)
+ return -EINVAL;
+
+ rc = falcon_spi_write(spi, eeprom->offset + EFX_ETHTOOL_EEPROM_MIN,
+ eeprom->len, &len, buf);
+ eeprom->len = len;
+ return rc;
+}
+
static int efx_ethtool_get_coalesce(struct net_device *net_dev,
struct ethtool_coalesce *coalesce)
{
@@ -653,6 +702,9 @@ struct ethtool_ops efx_ethtool_ops = {
.get_drvinfo = efx_ethtool_get_drvinfo,
.nway_reset = efx_ethtool_nway_reset,
.get_link = efx_ethtool_get_link,
+ .get_eeprom_len = efx_ethtool_get_eeprom_len,
+ .get_eeprom = efx_ethtool_get_eeprom,
+ .set_eeprom = efx_ethtool_set_eeprom,
.get_coalesce = efx_ethtool_get_coalesce,
.set_coalesce = efx_ethtool_set_coalesce,
.get_pauseparam = efx_ethtool_get_pauseparam,
diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c
index 9a13e5c..3017639 100644
--- a/drivers/net/sfc/falcon.c
+++ b/drivers/net/sfc/falcon.c
@@ -1620,64 +1620,195 @@ void falcon_fini_interrupt(struct efx_nic *efx)
/* Wait for SPI command completion */
static int falcon_spi_wait(struct efx_nic *efx)
{
+ unsigned long timeout = jiffies + DIV_ROUND_UP(HZ, 10);
efx_oword_t reg;
- int cmd_en, timer_active;
- int count;
+ bool cmd_en, timer_active;
- count = 0;
- do {
+ for (;;) {
falcon_read(efx, ®, EE_SPI_HCMD_REG_KER);
cmd_en = EFX_OWORD_FIELD(reg, EE_SPI_HCMD_CMD_EN);
timer_active = EFX_OWORD_FIELD(reg, EE_WR_TIMER_ACTIVE);
if (!cmd_en && !timer_active)
return 0;
- udelay(10);
- } while (++count < 10000); /* wait upto 100msec */
- EFX_ERR(efx, "timed out waiting for SPI\n");
- return -ETIMEDOUT;
+ if (time_after_eq(jiffies, timeout)) {
+ EFX_ERR(efx, "timed out waiting for SPI\n");
+ return -ETIMEDOUT;
+ }
+ cpu_relax();
+ }
}
-static int
-falcon_spi_read(struct efx_nic *efx, int device_id, unsigned int command,
- unsigned int address, unsigned int addr_len,
- void *data, unsigned int len)
+static int falcon_spi_cmd(const struct efx_spi_device *spi,
+ unsigned int command, int address,
+ const void *in, void *out, unsigned int len)
{
+ struct efx_nic *efx = spi->efx;
+ bool addressed = (address >= 0);
+ bool reading = (out != NULL);
efx_oword_t reg;
int rc;
- BUG_ON(len > FALCON_SPI_MAX_LEN);
+ /* Input validation */
+ if (len > FALCON_SPI_MAX_LEN)
+ return -EINVAL;
/* Check SPI not currently being accessed */
rc = falcon_spi_wait(efx);
if (rc)
return rc;
- /* Program address register */
- EFX_POPULATE_OWORD_1(reg, EE_SPI_HADR_ADR, address);
- falcon_write(efx, ®, EE_SPI_HADR_REG_KER);
+ /* Program address register, if we have an address */
+ if (addressed) {
+ EFX_POPULATE_OWORD_1(reg, EE_SPI_HADR_ADR, address);
+ falcon_write(efx, ®, EE_SPI_HADR_REG_KER);
+ }
+
+ /* Program data register, if we have data */
+ if (in != NULL) {
+ memcpy(®, in, len);
+ falcon_write(efx, ®, EE_SPI_HDATA_REG_KER);
+ }
- /* Issue read command */
+ /* Issue read/write command */
EFX_POPULATE_OWORD_7(reg,
EE_SPI_HCMD_CMD_EN, 1,
- EE_SPI_HCMD_SF_SEL, device_id,
+ EE_SPI_HCMD_SF_SEL, spi->device_id,
EE_SPI_HCMD_DABCNT, len,
- EE_SPI_HCMD_READ, EE_SPI_READ,
+ EE_SPI_HCMD_READ, reading,
EE_SPI_HCMD_DUBCNT, 0,
- EE_SPI_HCMD_ADBCNT, addr_len,
+ EE_SPI_HCMD_ADBCNT,
+ (addressed ? spi->addr_len : 0),
EE_SPI_HCMD_ENC, command);
falcon_write(efx, ®, EE_SPI_HCMD_REG_KER);
- /* Wait for read to complete */
+ /* Wait for read/write to complete */
rc = falcon_spi_wait(efx);
if (rc)
return rc;
/* Read data */
- falcon_read(efx, ®, EE_SPI_HDATA_REG_KER);
- memcpy(data, ®, len);
+ if (out != NULL) {
+ falcon_read(efx, ®, EE_SPI_HDATA_REG_KER);
+ memcpy(out, ®, len);
+ }
+
return 0;
}
+static unsigned int
+falcon_spi_write_limit(const struct efx_spi_device *spi, unsigned int start)
+{
+ return min(FALCON_SPI_MAX_LEN,
+ (spi->block_size - (start & (spi->block_size - 1))));
+}
+
+static inline u8
+efx_spi_munge_command(const struct efx_spi_device *spi,
+ const u8 command, const unsigned int address)
+{
+ return command | (((address >> 8) & spi->munge_address) << 3);
+}
+
+
+static int falcon_spi_fast_wait(const struct efx_spi_device *spi)
+{
+ u8 status;
+ int i, rc;
+
+ /* Wait up to 1000us for flash/EEPROM to finish a fast operation. */
+ for (i = 0; i < 50; i++) {
+ udelay(20);
+
+ rc = falcon_spi_cmd(spi, SPI_RDSR, -1, NULL,
+ &status, sizeof(status));
+ if (rc)
+ return rc;
+ if (!(status & SPI_STATUS_NRDY))
+ return 0;
+ }
+ EFX_ERR(spi->efx,
+ "timed out waiting for device %d last status=0x%02x\n",
+ spi->device_id, status);
+ return -ETIMEDOUT;
+}
+
+int falcon_spi_read(const struct efx_spi_device *spi, loff_t start,
+ size_t len, size_t *retlen, u8 *buffer)
+{
+ unsigned int command, block_len, pos = 0;
+ int rc = 0;
+
+ while (pos < len) {
+ block_len = min((unsigned int)len - pos,
+ FALCON_SPI_MAX_LEN);
+
+ command = efx_spi_munge_command(spi, SPI_READ, start + pos);
+ rc = falcon_spi_cmd(spi, command, start + pos, NULL,
+ buffer + pos, block_len);
+ if (rc)
+ break;
+ pos += block_len;
+
+ /* Avoid locking up the system */
+ cond_resched();
+ if (signal_pending(current)) {
+ rc = -EINTR;
+ break;
+ }
+ }
+
+ if (retlen)
+ *retlen = pos;
+ return rc;
+}
+
+int falcon_spi_write(const struct efx_spi_device *spi, loff_t start,
+ size_t len, size_t *retlen, const u8 *buffer)
+{
+ u8 verify_buffer[FALCON_SPI_MAX_LEN];
+ unsigned int command, block_len, pos = 0;
+ int rc = 0;
+
+ while (pos < len) {
+ rc = falcon_spi_cmd(spi, SPI_WREN, -1, NULL, NULL, 0);
+ if (rc)
+ break;
+
+ block_len = min((unsigned int)len - pos,
+ falcon_spi_write_limit(spi, start + pos));
+ command = efx_spi_munge_command(spi, SPI_WRITE, start + pos);
+ rc = falcon_spi_cmd(spi, command, start + pos,
+ buffer + pos, NULL, block_len);
+ if (rc)
+ break;
+
+ rc = falcon_spi_fast_wait(spi);
+ if (rc)
+ break;
+
+ command = efx_spi_munge_command(spi, SPI_READ, start + pos);
+ rc = falcon_spi_cmd(spi, command, start + pos,
+ NULL, verify_buffer, block_len);
+ if (memcmp(verify_buffer, buffer + pos, block_len)) {
+ rc = -EIO;
+ break;
+ }
+
+ pos += block_len;
+
+ /* Avoid locking up the system */
+ cond_resched();
+ if (signal_pending(current)) {
+ rc = -EINTR;
+ break;
+ }
+ }
+
+ if (retlen)
+ *retlen = pos;
+ return rc;
+}
+
/**************************************************************************
*
* MAC wrapper
@@ -2251,40 +2382,66 @@ static int falcon_reset_sram(struct efx_nic *efx)
return -ETIMEDOUT;
}
+static int falcon_spi_device_init(struct efx_nic *efx,
+ struct efx_spi_device **spi_device_ret,
+ unsigned int device_id, u32 device_type)
+{
+ struct efx_spi_device *spi_device;
+
+ if (device_type != 0) {
+ spi_device = kmalloc(sizeof(*spi_device), GFP_KERNEL);
+ if (!spi_device)
+ return -ENOMEM;
+ spi_device->device_id = device_id;
+ spi_device->size =
+ 1 << SPI_DEV_TYPE_FIELD(device_type, SPI_DEV_TYPE_SIZE);
+ spi_device->addr_len =
+ SPI_DEV_TYPE_FIELD(device_type, SPI_DEV_TYPE_ADDR_LEN);
+ spi_device->munge_address = (spi_device->size == 1 << 9 &&
+ spi_device->addr_len == 1);
+ spi_device->block_size =
+ 1 << SPI_DEV_TYPE_FIELD(device_type,
+ SPI_DEV_TYPE_BLOCK_SIZE);
+
+ spi_device->efx = efx;
+ } else {
+ spi_device = NULL;
+ }
+
+ kfree(*spi_device_ret);
+ *spi_device_ret = spi_device;
+ return 0;
+}
+
+
+static void falcon_remove_spi_devices(struct efx_nic *efx)
+{
+ kfree(efx->spi_eeprom);
+ efx->spi_eeprom = NULL;
+ kfree(efx->spi_flash);
+ efx->spi_flash = NULL;
+}
+
/* Extract non-volatile configuration */
static int falcon_probe_nvconfig(struct efx_nic *efx)
{
struct falcon_nvconfig *nvconfig;
- efx_oword_t nic_stat;
- int device_id;
- unsigned addr_len;
- size_t offset, len;
+ struct efx_spi_device *spi;
int magic_num, struct_ver, board_rev;
int rc;
- /* Find the boot device. */
- falcon_read(efx, &nic_stat, NIC_STAT_REG);
- if (EFX_OWORD_FIELD(nic_stat, SF_PRST)) {
- device_id = EE_SPI_FLASH;
- addr_len = 3;
- } else if (EFX_OWORD_FIELD(nic_stat, EE_PRST)) {
- device_id = EE_SPI_EEPROM;
- addr_len = 2;
- } else {
- return -ENODEV;
- }
-
nvconfig = kmalloc(sizeof(*nvconfig), GFP_KERNEL);
+ if (!nvconfig)
+ return -ENOMEM;
/* Read the whole configuration structure into memory. */
- for (offset = 0; offset < sizeof(*nvconfig); offset += len) {
- len = min(sizeof(*nvconfig) - offset,
- (size_t) FALCON_SPI_MAX_LEN);
- rc = falcon_spi_read(efx, device_id, SPI_READ,
- NVCONFIG_BASE + offset, addr_len,
- (char *)nvconfig + offset, len);
- if (rc)
- goto out;
+ spi = efx->spi_flash ? efx->spi_flash : efx->spi_eeprom;
+ rc = falcon_spi_read(spi, NVCONFIG_BASE, sizeof(*nvconfig),
+ NULL, (char *)nvconfig);
+ if (rc) {
+ EFX_ERR(efx, "Failed to read %s\n", efx->spi_flash ? "flash" :
+ "EEPROM");
+ goto fail1;
}
/* Read the MAC addresses */
@@ -2302,17 +2459,38 @@ static int falcon_probe_nvconfig(struct efx_nic *efx)
board_rev = 0;
} else {
struct falcon_nvconfig_board_v2 *v2 = &nvconfig->board_v2;
+ struct falcon_nvconfig_board_v3 *v3 = &nvconfig->board_v3;
efx->phy_type = v2->port0_phy_type;
efx->mii.phy_id = v2->port0_phy_addr;
board_rev = le16_to_cpu(v2->board_revision);
+
+ if (struct_ver >= 3) {
+ __le32 fl = v3->spi_device_type[EE_SPI_FLASH];
+ __le32 ee = v3->spi_device_type[EE_SPI_EEPROM];
+ rc = falcon_spi_device_init(efx, &efx->spi_flash,
+ EE_SPI_FLASH,
+ le32_to_cpu(fl));
+ if (rc)
+ goto fail2;
+ rc = falcon_spi_device_init(efx, &efx->spi_eeprom,
+ EE_SPI_EEPROM,
+ le32_to_cpu(ee));
+ if (rc)
+ goto fail2;
+ }
}
EFX_LOG(efx, "PHY is %d phy_id %d\n", efx->phy_type, efx->mii.phy_id);
efx_set_board_info(efx, board_rev);
- out:
+ kfree(nvconfig);
+ return 0;
+
+ fail2:
+ falcon_remove_spi_devices(efx);
+ fail1:
kfree(nvconfig);
return rc;
}
@@ -2363,6 +2541,86 @@ static int falcon_probe_nic_variant(struct efx_nic *efx)
return 0;
}
+/* Probe all SPI devices on the NIC */
+static void falcon_probe_spi_devices(struct efx_nic *efx)
+{
+ efx_oword_t nic_stat, gpio_ctl, ee_vpd_cfg;
+ bool has_flash, has_eeprom, boot_is_external;
+
+ falcon_read(efx, &gpio_ctl, GPIO_CTL_REG_KER);
+ falcon_read(efx, &nic_stat, NIC_STAT_REG);
+ falcon_read(efx, &ee_vpd_cfg, EE_VPD_CFG_REG_KER);
+
+ has_flash = EFX_OWORD_FIELD(nic_stat, SF_PRST);
+ has_eeprom = EFX_OWORD_FIELD(nic_stat, EE_PRST);
+ boot_is_external = EFX_OWORD_FIELD(gpio_ctl, BOOTED_USING_NVDEVICE);
+
+ if (has_flash) {
+ /* Default flash SPI device: Atmel AT25F1024
+ * 128 KB, 24-bit address, 32 KB erase block,
+ * 256 B write block
+ */
+ u32 flash_device_type =
+ (17 << SPI_DEV_TYPE_SIZE_LBN)
+ | (3 << SPI_DEV_TYPE_ADDR_LEN_LBN)
+ | (0x52 << SPI_DEV_TYPE_ERASE_CMD_LBN)
+ | (15 << SPI_DEV_TYPE_ERASE_SIZE_LBN)
+ | (8 << SPI_DEV_TYPE_BLOCK_SIZE_LBN);
+
+ falcon_spi_device_init(efx, &efx->spi_flash,
+ EE_SPI_FLASH, flash_device_type);
+
+ if (!boot_is_external) {
+ /* Disable VPD and set clock dividers to safe
+ * values for initial programming.
+ */
+ EFX_LOG(efx, "Booted from internal ASIC settings;"
+ " setting SPI config\n");
+ EFX_POPULATE_OWORD_3(ee_vpd_cfg, EE_VPD_EN, 0,
+ /* 125 MHz / 7 ~= 20 MHz */
+ EE_SF_CLOCK_DIV, 7,
+ /* 125 MHz / 63 ~= 2 MHz */
+ EE_EE_CLOCK_DIV, 63);
+ falcon_write(efx, &ee_vpd_cfg, EE_VPD_CFG_REG_KER);
+ }
+ }
+
+ if (has_eeprom) {
+ u32 eeprom_device_type;
+
+ /* If it has no flash, it must have a large EEPROM
+ * for chip config; otherwise check whether 9-bit
+ * addressing is used for VPD configuration
+ */
+ if (has_flash &&
+ (!boot_is_external ||
+ EFX_OWORD_FIELD(ee_vpd_cfg, EE_VPD_EN_AD9_MODE))) {
+ /* Default SPI device: Atmel AT25040 or similar
+ * 512 B, 9-bit address, 8 B write block
+ */
+ eeprom_device_type =
+ (9 << SPI_DEV_TYPE_SIZE_LBN)
+ | (1 << SPI_DEV_TYPE_ADDR_LEN_LBN)
+ | (3 << SPI_DEV_TYPE_BLOCK_SIZE_LBN);
+ } else {
+ /* "Large" SPI device: Atmel AT25640 or similar
+ * 8 KB, 16-bit address, 32 B write block
+ */
+ eeprom_device_type =
+ (13 << SPI_DEV_TYPE_SIZE_LBN)
+ | (2 << SPI_DEV_TYPE_ADDR_LEN_LBN)
+ | (5 << SPI_DEV_TYPE_BLOCK_SIZE_LBN);
+ }
+
+ falcon_spi_device_init(efx, &efx->spi_eeprom,
+ EE_SPI_EEPROM, eeprom_device_type);
+ }
+
+ EFX_LOG(efx, "flash is %s, EEPROM is %s\n",
+ (has_flash ? "present" : "absent"),
+ (has_eeprom ? "present" : "absent"));
+}
+
int falcon_probe_nic(struct efx_nic *efx)
{
struct falcon_nic_data *nic_data;
@@ -2413,6 +2671,8 @@ int falcon_probe_nic(struct efx_nic *efx)
(unsigned long long)efx->irq_status.dma_addr,
efx->irq_status.addr, virt_to_phys(efx->irq_status.addr));
+ falcon_probe_spi_devices(efx);
+
/* Read in the non-volatile configuration */
rc = falcon_probe_nvconfig(efx);
if (rc)
@@ -2432,6 +2692,7 @@ int falcon_probe_nic(struct efx_nic *efx)
return 0;
fail5:
+ falcon_remove_spi_devices(efx);
falcon_free_buffer(efx, &efx->irq_status);
fail4:
fail3:
@@ -2608,6 +2869,7 @@ void falcon_remove_nic(struct efx_nic *efx)
rc = i2c_del_adapter(&efx->i2c_adap);
BUG_ON(rc);
+ falcon_remove_spi_devices(efx);
falcon_free_buffer(efx, &efx->irq_status);
falcon_reset_hw(efx, RESET_TYPE_ALL);
diff --git a/drivers/net/sfc/falcon_hwdefs.h b/drivers/net/sfc/falcon_hwdefs.h
index 6d00311..626735e 100644
--- a/drivers/net/sfc/falcon_hwdefs.h
+++ b/drivers/net/sfc/falcon_hwdefs.h
@@ -92,6 +92,17 @@
/* SPI host data register */
#define EE_SPI_HDATA_REG_KER 0x0120
+/* SPI/VPD config register */
+#define EE_VPD_CFG_REG_KER 0x0140
+#define EE_VPD_EN_LBN 0
+#define EE_VPD_EN_WIDTH 1
+#define EE_VPD_EN_AD9_MODE_LBN 1
+#define EE_VPD_EN_AD9_MODE_WIDTH 1
+#define EE_EE_CLOCK_DIV_LBN 112
+#define EE_EE_CLOCK_DIV_WIDTH 7
+#define EE_SF_CLOCK_DIV_LBN 120
+#define EE_SF_CLOCK_DIV_WIDTH 7
+
/* PCIE CORE ACCESS REG */
#define PCIE_CORE_ADDR_PCIE_DEVICE_CTRL_STAT 0x68
#define PCIE_CORE_ADDR_PCIE_LINK_CTRL_STAT 0x70
@@ -115,6 +126,9 @@
#define STRAP_PCIE_LBN 0
#define STRAP_PCIE_WIDTH 1
+#define BOOTED_USING_NVDEVICE_LBN 3
+#define BOOTED_USING_NVDEVICE_WIDTH 1
+
/* GPIO control register */
#define GPIO_CTL_REG_KER 0x0210
#define GPIO_OUTPUTS_LBN (16)
@@ -1127,6 +1141,25 @@ struct falcon_nvconfig_board_v2 {
__le16 board_revision;
} __packed;
+/* Board configuration v3 extra information */
+struct falcon_nvconfig_board_v3 {
+ __le32 spi_device_type[2];
+} __packed;
+
+/* Bit numbers for spi_device_type */
+#define SPI_DEV_TYPE_SIZE_LBN 0
+#define SPI_DEV_TYPE_SIZE_WIDTH 5
+#define SPI_DEV_TYPE_ADDR_LEN_LBN 6
+#define SPI_DEV_TYPE_ADDR_LEN_WIDTH 2
+#define SPI_DEV_TYPE_ERASE_CMD_LBN 8
+#define SPI_DEV_TYPE_ERASE_CMD_WIDTH 8
+#define SPI_DEV_TYPE_ERASE_SIZE_LBN 16
+#define SPI_DEV_TYPE_ERASE_SIZE_WIDTH 5
+#define SPI_DEV_TYPE_BLOCK_SIZE_LBN 24
+#define SPI_DEV_TYPE_BLOCK_SIZE_WIDTH 5
+#define SPI_DEV_TYPE_FIELD(type, field) \
+ (((type) >> EFX_LOW_BIT(field)) & EFX_MASK32(field))
+
#define NVCONFIG_BASE 0x300
#define NVCONFIG_BOARD_MAGIC_NUM 0xFA1C
struct falcon_nvconfig {
@@ -1144,6 +1177,8 @@ struct falcon_nvconfig {
__le16 board_struct_ver;
__le16 board_checksum;
struct falcon_nvconfig_board_v2 board_v2;
+ efx_oword_t ee_base_page_reg; /* 0x3B0 */
+ struct falcon_nvconfig_board_v3 board_v3;
} __packed;
#endif /* EFX_FALCON_HWDEFS_H */
diff --git a/drivers/net/sfc/net_driver.h b/drivers/net/sfc/net_driver.h
index 1b92186..3902757 100644
--- a/drivers/net/sfc/net_driver.h
+++ b/drivers/net/sfc/net_driver.h
@@ -638,6 +638,10 @@ union efx_multicast_hash {
* This register is written with the SMP processor ID whenever an
* interrupt is handled. It is used by falcon_test_interrupt()
* to verify that an interrupt has occurred.
+ * @spi_flash: SPI flash device
+ * This field will be %NULL if no flash device is present.
+ * @spi_eeprom: SPI EEPROM device
+ * This field will be %NULL if no EEPROM device is present.
* @n_rx_nodesc_drop_cnt: RX no descriptor drop count
* @nic_data: Hardware dependant state
* @mac_lock: MAC access lock. Protects @port_enabled, efx_monitor() and
@@ -709,6 +713,9 @@ struct efx_nic {
struct efx_buffer irq_status;
volatile signed int last_irq_cpu;
+ struct efx_spi_device *spi_flash;
+ struct efx_spi_device *spi_eeprom;
+
unsigned n_rx_nodesc_drop_cnt;
struct falcon_nic_data *nic_data;
diff --git a/drivers/net/sfc/spi.h b/drivers/net/sfc/spi.h
index 34412f3..feef619 100644
--- a/drivers/net/sfc/spi.h
+++ b/drivers/net/sfc/spi.h
@@ -19,53 +19,48 @@
*
*************************************************************************/
-/*
- * Commands common to all known devices.
- *
+#define SPI_WRSR 0x01 /* Write status register */
+#define SPI_WRITE 0x02 /* Write data to memory array */
+#define SPI_READ 0x03 /* Read data from memory array */
+#define SPI_WRDI 0x04 /* Reset write enable latch */
+#define SPI_RDSR 0x05 /* Read status register */
+#define SPI_WREN 0x06 /* Set write enable latch */
+
+#define SPI_STATUS_WPEN 0x80 /* Write-protect pin enabled */
+#define SPI_STATUS_BP2 0x10 /* Block protection bit 2 */
+#define SPI_STATUS_BP1 0x08 /* Block protection bit 1 */
+#define SPI_STATUS_BP0 0x04 /* Block protection bit 0 */
+#define SPI_STATUS_WEN 0x02 /* State of the write enable latch */
+#define SPI_STATUS_NRDY 0x01 /* Device busy flag */
+
+/**
+ * struct efx_spi_device - an Efx SPI (Serial Peripheral Interface) device
+ * @efx: The Efx controller that owns this device
+ * @device_id: Controller's id for the device
+ * @size: Size (in bytes)
+ * @addr_len: Number of address bytes in read/write commands
+ * @munge_address: Flag whether addresses should be munged.
+ * Some devices with 9-bit addresses (e.g. AT25040A EEPROM)
+ * use bit 3 of the command byte as address bit A8, rather
+ * than having a two-byte address. If this flag is set, then
+ * commands should be munged in this way.
+ * @block_size: Write block size (in bytes).
+ * Write commands are limited to blocks with this size and alignment.
+ * @read: Read function for the device
+ * @write: Write function for the device
*/
-
-/* Write status register */
-#define SPI_WRSR 0x01
-
-/* Write data to memory array */
-#define SPI_WRITE 0x02
-
-/* Read data from memory array */
-#define SPI_READ 0x03
-
-/* Reset write enable latch */
-#define SPI_WRDI 0x04
-
-/* Read status register */
-#define SPI_RDSR 0x05
-
-/* Set write enable latch */
-#define SPI_WREN 0x06
-
-/* SST: Enable write to status register */
-#define SPI_SST_EWSR 0x50
-
-/*
- * Status register bits. Not all bits are supported on all devices.
- *
- */
-
-/* Write-protect pin enabled */
-#define SPI_STATUS_WPEN 0x80
-
-/* Block protection bit 2 */
-#define SPI_STATUS_BP2 0x10
-
-/* Block protection bit 1 */
-#define SPI_STATUS_BP1 0x08
-
-/* Block protection bit 0 */
-#define SPI_STATUS_BP0 0x04
-
-/* State of the write enable latch */
-#define SPI_STATUS_WEN 0x02
-
-/* Device busy flag */
-#define SPI_STATUS_NRDY 0x01
+struct efx_spi_device {
+ struct efx_nic *efx;
+ int device_id;
+ unsigned int size;
+ unsigned int addr_len;
+ unsigned int munge_address:1;
+ unsigned int block_size;
+};
+
+int falcon_spi_read(const struct efx_spi_device *spi, loff_t start,
+ size_t len, size_t *retlen, u8 *buffer);
+int falcon_spi_write(const struct efx_spi_device *spi, loff_t start,
+ size_t len, size_t *retlen, const u8 *buffer);
#endif /* EFX_SPI_H */
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 22/52] sfc: Move CPU counting for RSS into a separate function, efx_wanted_rx_queues()
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (20 preceding siblings ...)
2008-09-01 11:47 ` [PATCH 21/52] sfc: Export boot configuration in EEPROM through ethtool Ben Hutchings
@ 2008-09-01 11:47 ` Ben Hutchings
2008-09-01 11:47 ` [PATCH 23/52] sfc: Remove efx_channel::has_interrupt Ben Hutchings
` (29 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:47 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/efx.c | 60 ++++++++++++++++++++++++++++--------------------
1 files changed, 35 insertions(+), 25 deletions(-)
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c
index 9f1ac3a..487df94 100644
--- a/drivers/net/sfc/efx.c
+++ b/drivers/net/sfc/efx.c
@@ -819,38 +819,48 @@ static void efx_fini_io(struct efx_nic *efx)
pci_disable_device(efx->pci_dev);
}
-/* Probe the number and type of interrupts we are able to obtain. */
+/* Get number of RX queues wanted. Return number of online CPU
+ * packages in the expectation that an IRQ balancer will spread
+ * interrupts across them. */
+static int efx_wanted_rx_queues(void)
+{
+ cpumask_t core_mask;
+ int count;
+ int cpu;
+
+ cpus_clear(core_mask);
+ count = 0;
+ for_each_online_cpu(cpu) {
+ if (!cpu_isset(cpu, core_mask)) {
+ ++count;
+ cpus_or(core_mask, core_mask,
+ topology_core_siblings(cpu));
+ }
+ }
+
+ return count;
+}
+
+/* Probe the number and type of interrupts we are able to obtain, and
+ * the resulting numbers of channels and RX queues.
+ */
static void efx_probe_interrupts(struct efx_nic *efx)
{
- int max_channel = efx->type->phys_addr_channels - 1;
- struct msix_entry xentries[EFX_MAX_CHANNELS];
+ int max_channels =
+ min_t(int, efx->type->phys_addr_channels, EFX_MAX_CHANNELS);
int rc, i;
if (efx->interrupt_mode == EFX_INT_MODE_MSIX) {
- BUG_ON(!pci_find_capability(efx->pci_dev, PCI_CAP_ID_MSIX));
-
- if (rss_cpus == 0) {
- cpumask_t core_mask;
- int cpu;
-
- cpus_clear(core_mask);
- efx->rss_queues = 0;
- for_each_online_cpu(cpu) {
- if (!cpu_isset(cpu, core_mask)) {
- ++efx->rss_queues;
- cpus_or(core_mask, core_mask,
- topology_core_siblings(cpu));
- }
- }
- } else {
- efx->rss_queues = rss_cpus;
- }
+ struct msix_entry xentries[EFX_MAX_CHANNELS];
+ int wanted_ints;
- efx->rss_queues = min(efx->rss_queues, max_channel + 1);
- efx->rss_queues = min(efx->rss_queues, EFX_MAX_CHANNELS);
+ /* We want one RX queue and interrupt per CPU package
+ * (or as specified by the rss_cpus module parameter).
+ * We will need one channel per interrupt.
+ */
+ wanted_ints = rss_cpus ? rss_cpus : efx_wanted_rx_queues();
+ efx->rss_queues = min(wanted_ints, max_channels);
- /* Request maximum number of MSI interrupts, and fill out
- * the channel interrupt information the allowed allocation */
for (i = 0; i < efx->rss_queues; i++)
xentries[i].entry = i;
rc = pci_enable_msix(efx->pci_dev, xentries, efx->rss_queues);
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 23/52] sfc: Remove efx_channel::has_interrupt
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (21 preceding siblings ...)
2008-09-01 11:47 ` [PATCH 22/52] sfc: Move CPU counting for RSS into a separate function, efx_wanted_rx_queues() Ben Hutchings
@ 2008-09-01 11:47 ` Ben Hutchings
2008-09-01 11:47 ` [PATCH 24/52] sfc: Cleanup RX queue information Ben Hutchings
` (28 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:47 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
efx_channel::has_interrupt is redundant with efx_channel::used_flags.
Remove efx_test_eventq() because it is now obviously unreachable.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/efx.c | 16 ++++----------
drivers/net/sfc/falcon.c | 8 +++---
drivers/net/sfc/net_driver.h | 11 ----------
drivers/net/sfc/selftest.c | 44 ++---------------------------------------
4 files changed, 12 insertions(+), 67 deletions(-)
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c
index 487df94..2deac7b 100644
--- a/drivers/net/sfc/efx.c
+++ b/drivers/net/sfc/efx.c
@@ -259,7 +259,7 @@ void efx_process_channel_now(struct efx_channel *channel)
falcon_disable_interrupts(efx);
if (efx->legacy_irq)
synchronize_irq(efx->legacy_irq);
- if (channel->has_interrupt && channel->irq)
+ if (channel->irq)
synchronize_irq(channel->irq);
/* Wait for any NAPI processing to complete */
@@ -872,10 +872,8 @@ static void efx_probe_interrupts(struct efx_nic *efx)
}
if (rc == 0) {
- for (i = 0; i < efx->rss_queues; i++) {
- efx->channel[i].has_interrupt = true;
+ for (i = 0; i < efx->rss_queues; i++)
efx->channel[i].irq = xentries[i].vector;
- }
} else {
/* Fall back to single channel MSI */
efx->interrupt_mode = EFX_INT_MODE_MSI;
@@ -889,7 +887,6 @@ static void efx_probe_interrupts(struct efx_nic *efx)
rc = pci_enable_msi(efx->pci_dev);
if (rc == 0) {
efx->channel[0].irq = efx->pci_dev->irq;
- efx->channel[0].has_interrupt = true;
} else {
EFX_ERR(efx, "could not enable MSI\n");
efx->interrupt_mode = EFX_INT_MODE_LEGACY;
@@ -899,9 +896,6 @@ static void efx_probe_interrupts(struct efx_nic *efx)
/* Assume legacy interrupts */
if (efx->interrupt_mode == EFX_INT_MODE_LEGACY) {
efx->rss_queues = 1;
- /* Every channel is interruptible */
- for (i = 0; i < EFX_MAX_CHANNELS; i++)
- efx->channel[i].has_interrupt = true;
efx->legacy_irq = efx->pci_dev->irq;
}
}
@@ -911,7 +905,7 @@ static void efx_remove_interrupts(struct efx_nic *efx)
struct efx_channel *channel;
/* Remove MSI/MSI-X interrupts */
- efx_for_each_channel_with_interrupt(channel, efx)
+ efx_for_each_channel(channel, efx)
channel->irq = 0;
pci_disable_msi(efx->pci_dev);
pci_disable_msix(efx->pci_dev);
@@ -1106,7 +1100,7 @@ static void efx_stop_all(struct efx_nic *efx)
falcon_disable_interrupts(efx);
if (efx->legacy_irq)
synchronize_irq(efx->legacy_irq);
- efx_for_each_channel_with_interrupt(channel, efx) {
+ efx_for_each_channel(channel, efx) {
if (channel->irq)
synchronize_irq(channel->irq);
}
@@ -1303,7 +1297,7 @@ static void efx_netpoll(struct net_device *net_dev)
struct efx_nic *efx = netdev_priv(net_dev);
struct efx_channel *channel;
- efx_for_each_channel_with_interrupt(channel, efx)
+ efx_for_each_channel(channel, efx)
efx_schedule_channel(channel);
}
diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c
index 3017639..40dd643 100644
--- a/drivers/net/sfc/falcon.c
+++ b/drivers/net/sfc/falcon.c
@@ -1317,7 +1317,7 @@ void falcon_enable_interrupts(struct efx_nic *efx)
/* Force processing of all the channels to get the EVQ RPTRs up to
date */
- efx_for_each_channel_with_interrupt(channel, efx)
+ efx_for_each_channel(channel, efx)
efx_schedule_channel(channel);
}
@@ -1567,7 +1567,7 @@ int falcon_init_interrupt(struct efx_nic *efx)
}
/* Hook MSI or MSI-X interrupt */
- efx_for_each_channel_with_interrupt(channel, efx) {
+ efx_for_each_channel(channel, efx) {
rc = request_irq(channel->irq, falcon_msi_interrupt,
IRQF_PROBE_SHARED, /* Not shared */
efx->name, channel);
@@ -1580,7 +1580,7 @@ int falcon_init_interrupt(struct efx_nic *efx)
return 0;
fail2:
- efx_for_each_channel_with_interrupt(channel, efx)
+ efx_for_each_channel(channel, efx)
free_irq(channel->irq, channel);
fail1:
return rc;
@@ -1592,7 +1592,7 @@ void falcon_fini_interrupt(struct efx_nic *efx)
efx_oword_t reg;
/* Disable MSI/MSI-X interrupts */
- efx_for_each_channel_with_interrupt(channel, efx) {
+ efx_for_each_channel(channel, efx) {
if (channel->irq)
free_irq(channel->irq, channel);
}
diff --git a/drivers/net/sfc/net_driver.h b/drivers/net/sfc/net_driver.h
index 3902757..1fa134a 100644
--- a/drivers/net/sfc/net_driver.h
+++ b/drivers/net/sfc/net_driver.h
@@ -329,7 +329,6 @@ enum efx_rx_alloc_method {
* @used_flags: Channel is used by net driver
* @enabled: Channel enabled indicator
* @irq: IRQ number (MSI and MSI-X only)
- * @has_interrupt: Channel has an interrupt
* @irq_moderation: IRQ moderation value (in us)
* @napi_dev: Net device used with NAPI
* @napi_str: NAPI control structure
@@ -361,7 +360,6 @@ struct efx_channel {
int used_flags;
bool enabled;
int irq;
- bool has_interrupt;
unsigned int irq_moderation;
struct net_device *napi_dev;
struct napi_struct napi_str;
@@ -834,15 +832,6 @@ struct efx_nic_type {
continue; \
else
-/* Iterate over all used channels with interrupts */
-#define efx_for_each_channel_with_interrupt(_channel, _efx) \
- for (_channel = &_efx->channel[0]; \
- _channel < &_efx->channel[EFX_MAX_CHANNELS]; \
- _channel++) \
- if (!(_channel->used_flags && _channel->has_interrupt)) \
- continue; \
- else
-
/* Iterate over all used TX queues */
#define efx_for_each_tx_queue(_tx_queue, _efx) \
for (_tx_queue = &_efx->tx_queue[0]; \
diff --git a/drivers/net/sfc/selftest.c b/drivers/net/sfc/selftest.c
index ff7b84c..2f7def6 100644
--- a/drivers/net/sfc/selftest.c
+++ b/drivers/net/sfc/selftest.c
@@ -111,7 +111,7 @@ static int efx_test_interrupts(struct efx_nic *efx,
/* ACK each interrupting event queue. Receiving an interrupt due to
* traffic before a test event is raised is considered a pass */
- efx_for_each_channel_with_interrupt(channel, efx) {
+ efx_for_each_channel(channel, efx) {
if (channel->work_pending)
efx_process_channel_now(channel);
if (efx->last_irq_cpu >= 0)
@@ -136,41 +136,6 @@ static int efx_test_interrupts(struct efx_nic *efx,
return 0;
}
-/* Test generation and receipt of non-interrupting events */
-static int efx_test_eventq(struct efx_channel *channel,
- struct efx_self_tests *tests)
-{
- unsigned int magic;
-
- /* Channel specific code, limited to 20 bits */
- magic = (0x00010150 + channel->channel);
- EFX_LOG(channel->efx, "channel %d testing event queue with code %x\n",
- channel->channel, magic);
-
- tests->eventq_dma[channel->channel] = -1;
- tests->eventq_int[channel->channel] = 1; /* fake pass */
- tests->eventq_poll[channel->channel] = 1; /* fake pass */
-
- /* Reset flag and zero magic word */
- channel->efx->last_irq_cpu = -1;
- channel->eventq_magic = 0;
- smp_wmb();
-
- falcon_generate_test_event(channel, magic);
- udelay(1);
-
- efx_process_channel_now(channel);
- if (channel->eventq_magic != magic) {
- EFX_ERR(channel->efx, "channel %d failed to see test event\n",
- channel->channel);
- return -ETIMEDOUT;
- } else {
- tests->eventq_dma[channel->channel] = 1;
- }
-
- return 0;
-}
-
/* Test generation and receipt of interrupting events */
static int efx_test_eventq_irq(struct efx_channel *channel,
struct efx_self_tests *tests)
@@ -456,7 +421,7 @@ static int efx_poll_loopback(struct efx_nic *efx)
/* NAPI polling is not enabled, so process channels
* synchronously */
- efx_for_each_channel_with_interrupt(channel, efx) {
+ efx_for_each_channel(channel, efx) {
if (channel->work_pending)
efx_process_channel_now(channel);
}
@@ -689,10 +654,7 @@ int efx_online_test(struct efx_nic *efx, struct efx_self_tests *tests)
if (rc)
return rc;
efx_for_each_channel(channel, efx) {
- if (channel->has_interrupt)
- rc = efx_test_eventq_irq(channel, tests);
- else
- rc = efx_test_eventq(channel, tests);
+ rc = efx_test_eventq_irq(channel, tests);
if (rc)
return rc;
}
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 24/52] sfc: Cleanup RX queue information
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (22 preceding siblings ...)
2008-09-01 11:47 ` [PATCH 23/52] sfc: Remove efx_channel::has_interrupt Ben Hutchings
@ 2008-09-01 11:47 ` Ben Hutchings
2008-09-01 11:47 ` [PATCH 25/52] sfc: Remove initialisation of RX_FILTER_CTL_REG.NUM_KER Ben Hutchings
` (27 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:47 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
Rename efx_nic::rss_queues to the more obvious n_rx_queues
Remove efx_rx_queue::used and other stuff that's redundant with it.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/efx.c | 43 +++++++++++++----------------------------
drivers/net/sfc/falcon.c | 4 +-
drivers/net/sfc/net_driver.h | 16 ++++----------
drivers/net/sfc/rx.c | 22 +++++---------------
4 files changed, 27 insertions(+), 58 deletions(-)
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c
index 2deac7b..ba4369c 100644
--- a/drivers/net/sfc/efx.c
+++ b/drivers/net/sfc/efx.c
@@ -859,20 +859,20 @@ static void efx_probe_interrupts(struct efx_nic *efx)
* We will need one channel per interrupt.
*/
wanted_ints = rss_cpus ? rss_cpus : efx_wanted_rx_queues();
- efx->rss_queues = min(wanted_ints, max_channels);
+ efx->n_rx_queues = min(wanted_ints, max_channels);
- for (i = 0; i < efx->rss_queues; i++)
+ for (i = 0; i < efx->n_rx_queues; i++)
xentries[i].entry = i;
- rc = pci_enable_msix(efx->pci_dev, xentries, efx->rss_queues);
+ rc = pci_enable_msix(efx->pci_dev, xentries, efx->n_rx_queues);
if (rc > 0) {
- EFX_BUG_ON_PARANOID(rc >= efx->rss_queues);
- efx->rss_queues = rc;
+ EFX_BUG_ON_PARANOID(rc >= efx->n_rx_queues);
+ efx->n_rx_queues = rc;
rc = pci_enable_msix(efx->pci_dev, xentries,
- efx->rss_queues);
+ efx->n_rx_queues);
}
if (rc == 0) {
- for (i = 0; i < efx->rss_queues; i++)
+ for (i = 0; i < efx->n_rx_queues; i++)
efx->channel[i].irq = xentries[i].vector;
} else {
/* Fall back to single channel MSI */
@@ -883,7 +883,7 @@ static void efx_probe_interrupts(struct efx_nic *efx)
/* Try single interrupt MSI */
if (efx->interrupt_mode == EFX_INT_MODE_MSI) {
- efx->rss_queues = 1;
+ efx->n_rx_queues = 1;
rc = pci_enable_msi(efx->pci_dev);
if (rc == 0) {
efx->channel[0].irq = efx->pci_dev->irq;
@@ -895,7 +895,7 @@ static void efx_probe_interrupts(struct efx_nic *efx)
/* Assume legacy interrupts */
if (efx->interrupt_mode == EFX_INT_MODE_LEGACY) {
- efx->rss_queues = 1;
+ efx->n_rx_queues = 1;
efx->legacy_irq = efx->pci_dev->irq;
}
}
@@ -914,14 +914,10 @@ static void efx_remove_interrupts(struct efx_nic *efx)
efx->legacy_irq = 0;
}
-/* Select number of used resources
- * Should be called after probe_interrupts()
- */
-static void efx_select_used(struct efx_nic *efx)
+static void efx_set_channels(struct efx_nic *efx)
{
struct efx_tx_queue *tx_queue;
struct efx_rx_queue *rx_queue;
- int i;
efx_for_each_tx_queue(tx_queue, efx) {
if (!EFX_INT_MODE_USE_MSI(efx) && separate_tx_and_rx_channels)
@@ -931,19 +927,9 @@ static void efx_select_used(struct efx_nic *efx)
tx_queue->channel->used_flags |= EFX_USED_BY_TX;
}
- /* RX queues. Each has a dedicated channel. */
- for (i = 0; i < EFX_MAX_RX_QUEUES; i++) {
- rx_queue = &efx->rx_queue[i];
-
- if (i < efx->rss_queues) {
- rx_queue->used = true;
- /* If we allow multiple RX queues per channel
- * we need to decide that here
- */
- rx_queue->channel = &efx->channel[rx_queue->queue];
- rx_queue->channel->used_flags |= EFX_USED_BY_RX;
- rx_queue++;
- }
+ efx_for_each_rx_queue(rx_queue, efx) {
+ rx_queue->channel = &efx->channel[rx_queue->queue];
+ rx_queue->channel->used_flags |= EFX_USED_BY_RX;
}
}
@@ -962,8 +948,7 @@ static int efx_probe_nic(struct efx_nic *efx)
* in MSI-X interrupts. */
efx_probe_interrupts(efx);
- /* Determine number of RX queues and TX queues */
- efx_select_used(efx);
+ efx_set_channels(efx);
/* Initialise the interrupt moderation settings */
efx_init_irq_moderation(efx, tx_irq_mod_usec, rx_irq_mod_usec);
diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c
index 40dd643..03194d6 100644
--- a/drivers/net/sfc/falcon.c
+++ b/drivers/net/sfc/falcon.c
@@ -1535,7 +1535,7 @@ static void falcon_setup_rss_indir_table(struct efx_nic *efx)
offset < RX_RSS_INDIR_TBL_B0 + 0x800;
offset += 0x10) {
EFX_POPULATE_DWORD_1(dword, RX_RSS_INDIR_ENT_B0,
- i % efx->rss_queues);
+ i % efx->n_rx_queues);
falcon_writel(efx, &dword, offset);
i++;
}
@@ -2785,7 +2785,7 @@ int falcon_init_nic(struct efx_nic *efx)
if (falcon_rev(efx) >= FALCON_REV_B0)
EFX_SET_OWORD_FIELD(temp, NUM_KER, 0);
else
- EFX_SET_OWORD_FIELD(temp, NUM_KER, efx->rss_queues - 1);
+ EFX_SET_OWORD_FIELD(temp, NUM_KER, efx->n_rx_queues - 1);
if (EFX_WORKAROUND_7244(efx)) {
EFX_SET_OWORD_FIELD(temp, UDP_FULL_SRCH_LIMIT, 8);
EFX_SET_OWORD_FIELD(temp, UDP_WILD_SRCH_LIMIT, 8);
diff --git a/drivers/net/sfc/net_driver.h b/drivers/net/sfc/net_driver.h
index 1fa134a..b5649b1 100644
--- a/drivers/net/sfc/net_driver.h
+++ b/drivers/net/sfc/net_driver.h
@@ -231,7 +231,6 @@ struct efx_rx_buffer {
* struct efx_rx_queue - An Efx RX queue
* @efx: The associated Efx NIC
* @queue: DMA queue number
- * @used: Queue is used by net driver
* @channel: The associated channel
* @buffer: The software buffer ring
* @rxd: The hardware descriptor ring
@@ -265,7 +264,6 @@ struct efx_rx_buffer {
struct efx_rx_queue {
struct efx_nic *efx;
int queue;
- bool used;
struct efx_channel *channel;
struct efx_rx_buffer *buffer;
struct efx_special_buffer rxd;
@@ -628,7 +626,7 @@ union efx_multicast_hash {
* @tx_queue: TX DMA queues
* @rx_queue: RX DMA queues
* @channel: Channels
- * @rss_queues: Number of RSS queues
+ * @n_rx_queues: Number of RX queues
* @rx_buffer_len: RX buffer length
* @rx_buffer_order: Order (log2) of number of pages for each RX buffer
* @irq_status: Interrupt status buffer
@@ -704,7 +702,7 @@ struct efx_nic {
struct efx_rx_queue rx_queue[EFX_MAX_RX_QUEUES];
struct efx_channel channel[EFX_MAX_CHANNELS];
- int rss_queues;
+ int n_rx_queues;
unsigned int rx_buffer_len;
unsigned int rx_buffer_order;
@@ -850,19 +848,15 @@ struct efx_nic_type {
/* Iterate over all used RX queues */
#define efx_for_each_rx_queue(_rx_queue, _efx) \
for (_rx_queue = &_efx->rx_queue[0]; \
- _rx_queue < &_efx->rx_queue[EFX_MAX_RX_QUEUES]; \
- _rx_queue++) \
- if (!_rx_queue->used) \
- continue; \
- else
+ _rx_queue < &_efx->rx_queue[_efx->n_rx_queues]; \
+ _rx_queue++)
/* Iterate over all RX queues belonging to a channel */
#define efx_for_each_channel_rx_queue(_rx_queue, _channel) \
for (_rx_queue = &_channel->efx->rx_queue[0]; \
_rx_queue < &_channel->efx->rx_queue[EFX_MAX_RX_QUEUES]; \
_rx_queue++) \
- if ((!_rx_queue->used) || \
- (_rx_queue->channel != _channel)) \
+ if (_rx_queue->channel != _channel) \
continue; \
else
diff --git a/drivers/net/sfc/rx.c b/drivers/net/sfc/rx.c
index fa1a62a..7d2dc20 100644
--- a/drivers/net/sfc/rx.c
+++ b/drivers/net/sfc/rx.c
@@ -789,23 +789,14 @@ int efx_probe_rx_queue(struct efx_rx_queue *rx_queue)
/* Allocate RX buffers */
rxq_size = (efx->type->rxd_ring_mask + 1) * sizeof(*rx_queue->buffer);
rx_queue->buffer = kzalloc(rxq_size, GFP_KERNEL);
- if (!rx_queue->buffer) {
- rc = -ENOMEM;
- goto fail1;
- }
+ if (!rx_queue->buffer)
+ return -ENOMEM;
rc = falcon_probe_rx(rx_queue);
- if (rc)
- goto fail2;
-
- return 0;
-
- fail2:
- kfree(rx_queue->buffer);
- rx_queue->buffer = NULL;
- fail1:
- rx_queue->used = 0;
-
+ if (rc) {
+ kfree(rx_queue->buffer);
+ rx_queue->buffer = NULL;
+ }
return rc;
}
@@ -872,7 +863,6 @@ void efx_remove_rx_queue(struct efx_rx_queue *rx_queue)
kfree(rx_queue->buffer);
rx_queue->buffer = NULL;
- rx_queue->used = 0;
}
void efx_flush_lro(struct efx_channel *channel)
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 25/52] sfc: Remove initialisation of RX_FILTER_CTL_REG.NUM_KER
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (23 preceding siblings ...)
2008-09-01 11:47 ` [PATCH 24/52] sfc: Cleanup RX queue information Ben Hutchings
@ 2008-09-01 11:47 ` Ben Hutchings
2008-09-01 11:47 ` [PATCH 26/52] sfc: Make efx_for_each_channel_rx_queue() more efficient Ben Hutchings
` (26 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:47 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
We have long since given up doing RSS on Falcon A1 and therefore we
would always write the default value of 0.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/falcon.c | 9 ++-------
1 files changed, 2 insertions(+), 7 deletions(-)
diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c
index 03194d6..bfae082 100644
--- a/drivers/net/sfc/falcon.c
+++ b/drivers/net/sfc/falcon.c
@@ -2780,19 +2780,14 @@ int falcon_init_nic(struct efx_nic *efx)
EFX_INVERT_OWORD(temp);
falcon_write(efx, &temp, FATAL_INTR_REG_KER);
- /* Set number of RSS queues for receive path. */
- falcon_read(efx, &temp, RX_FILTER_CTL_REG);
- if (falcon_rev(efx) >= FALCON_REV_B0)
- EFX_SET_OWORD_FIELD(temp, NUM_KER, 0);
- else
- EFX_SET_OWORD_FIELD(temp, NUM_KER, efx->n_rx_queues - 1);
if (EFX_WORKAROUND_7244(efx)) {
+ falcon_read(efx, &temp, RX_FILTER_CTL_REG);
EFX_SET_OWORD_FIELD(temp, UDP_FULL_SRCH_LIMIT, 8);
EFX_SET_OWORD_FIELD(temp, UDP_WILD_SRCH_LIMIT, 8);
EFX_SET_OWORD_FIELD(temp, TCP_FULL_SRCH_LIMIT, 8);
EFX_SET_OWORD_FIELD(temp, TCP_WILD_SRCH_LIMIT, 8);
+ falcon_write(efx, &temp, RX_FILTER_CTL_REG);
}
- falcon_write(efx, &temp, RX_FILTER_CTL_REG);
falcon_setup_rss_indir_table(efx);
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 26/52] sfc: Make efx_for_each_channel_rx_queue() more efficient
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (24 preceding siblings ...)
2008-09-01 11:47 ` [PATCH 25/52] sfc: Remove initialisation of RX_FILTER_CTL_REG.NUM_KER Ben Hutchings
@ 2008-09-01 11:47 ` Ben Hutchings
2008-09-01 11:48 ` [PATCH 27/52] sfc: Remove efx_channel::evqnum field Ben Hutchings
` (25 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:47 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
Currently each channel can have at most one RX queue, so go straight to
that one.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/net_driver.h | 6 +++---
1 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/net/sfc/net_driver.h b/drivers/net/sfc/net_driver.h
index b5649b1..74e934c 100644
--- a/drivers/net/sfc/net_driver.h
+++ b/drivers/net/sfc/net_driver.h
@@ -853,9 +853,9 @@ struct efx_nic_type {
/* Iterate over all RX queues belonging to a channel */
#define efx_for_each_channel_rx_queue(_rx_queue, _channel) \
- for (_rx_queue = &_channel->efx->rx_queue[0]; \
- _rx_queue < &_channel->efx->rx_queue[EFX_MAX_RX_QUEUES]; \
- _rx_queue++) \
+ for (_rx_queue = &_channel->efx->rx_queue[_channel->channel]; \
+ _rx_queue; \
+ _rx_queue = NULL) \
if (_rx_queue->channel != _channel) \
continue; \
else
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 27/52] sfc: Remove efx_channel::evqnum field
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (25 preceding siblings ...)
2008-09-01 11:47 ` [PATCH 26/52] sfc: Make efx_for_each_channel_rx_queue() more efficient Ben Hutchings
@ 2008-09-01 11:48 ` Ben Hutchings
2008-09-01 11:48 ` [PATCH 28/52] sfc: Cleanup RX event processing Ben Hutchings
` (24 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:48 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
It is redundant with efx_channel::channel.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/efx.c | 1 -
drivers/net/sfc/falcon.c | 14 +++++++-------
drivers/net/sfc/net_driver.h | 2 --
3 files changed, 7 insertions(+), 10 deletions(-)
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c
index ba4369c..22004a6 100644
--- a/drivers/net/sfc/efx.c
+++ b/drivers/net/sfc/efx.c
@@ -1854,7 +1854,6 @@ static int efx_init_struct(struct efx_nic *efx, struct efx_nic_type *type,
channel = &efx->channel[i];
channel->efx = efx;
channel->channel = i;
- channel->evqnum = i;
channel->work_pending = false;
}
for (i = 0; i < EFX_TX_QUEUE_COUNT; i++) {
diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c
index bfae082..7b1c387 100644
--- a/drivers/net/sfc/falcon.c
+++ b/drivers/net/sfc/falcon.c
@@ -466,7 +466,7 @@ int falcon_init_tx(struct efx_tx_queue *tx_queue)
TX_ISCSI_DDIG_EN, 0,
TX_ISCSI_HDIG_EN, 0,
TX_DESCQ_BUF_BASE_ID, tx_queue->txd.index,
- TX_DESCQ_EVQ_ID, tx_queue->channel->evqnum,
+ TX_DESCQ_EVQ_ID, tx_queue->channel->channel,
TX_DESCQ_OWNER_ID, 0,
TX_DESCQ_LABEL, tx_queue->queue,
TX_DESCQ_SIZE, FALCON_TXD_RING_ORDER,
@@ -661,7 +661,7 @@ int falcon_init_rx(struct efx_rx_queue *rx_queue)
RX_ISCSI_DDIG_EN, iscsi_digest_en,
RX_ISCSI_HDIG_EN, iscsi_digest_en,
RX_DESCQ_BUF_BASE_ID, rx_queue->rxd.index,
- RX_DESCQ_EVQ_ID, rx_queue->channel->evqnum,
+ RX_DESCQ_EVQ_ID, rx_queue->channel->channel,
RX_DESCQ_OWNER_ID, 0,
RX_DESCQ_LABEL, rx_queue->queue,
RX_DESCQ_SIZE, FALCON_RXD_RING_ORDER,
@@ -795,7 +795,7 @@ void falcon_eventq_read_ack(struct efx_channel *channel)
EFX_POPULATE_DWORD_1(reg, EVQ_RPTR_DWORD, channel->eventq_read_ptr);
falcon_writel_table(efx, ®, efx->type->evq_rptr_tbl_base,
- channel->evqnum);
+ channel->channel);
}
/* Use HW to insert a SW defined event */
@@ -804,7 +804,7 @@ void falcon_generate_event(struct efx_channel *channel, efx_qword_t *event)
efx_oword_t drv_ev_reg;
EFX_POPULATE_OWORD_2(drv_ev_reg,
- DRV_EV_QID, channel->evqnum,
+ DRV_EV_QID, channel->channel,
DRV_EV_DATA,
EFX_QWORD_FIELD64(*event, WHOLE_EVENT));
falcon_write(channel->efx, &drv_ev_reg, DRV_EV_REG_KER);
@@ -1197,7 +1197,7 @@ void falcon_set_int_moderation(struct efx_channel *channel)
TIMER_VAL, 0);
}
falcon_writel_page_locked(efx, &timer_cmd, TIMER_CMD_REG_KER,
- channel->evqnum);
+ channel->channel);
}
@@ -1235,7 +1235,7 @@ int falcon_init_eventq(struct efx_channel *channel)
EVQ_SIZE, FALCON_EVQ_ORDER,
EVQ_BUF_BASE_ID, channel->eventq.index);
falcon_write_table(efx, &evq_ptr, efx->type->evq_ptr_tbl_base,
- channel->evqnum);
+ channel->channel);
falcon_set_int_moderation(channel);
@@ -1250,7 +1250,7 @@ void falcon_fini_eventq(struct efx_channel *channel)
/* Remove event queue from card */
EFX_ZERO_OWORD(eventq_ptr);
falcon_write_table(efx, &eventq_ptr, efx->type->evq_ptr_tbl_base,
- channel->evqnum);
+ channel->channel);
/* Unpin event queue */
falcon_fini_special_buffer(efx, &channel->eventq);
diff --git a/drivers/net/sfc/net_driver.h b/drivers/net/sfc/net_driver.h
index 74e934c..e65d661 100644
--- a/drivers/net/sfc/net_driver.h
+++ b/drivers/net/sfc/net_driver.h
@@ -322,7 +322,6 @@ enum efx_rx_alloc_method {
* queue.
*
* @efx: Associated Efx NIC
- * @evqnum: Event queue number
* @channel: Channel instance number
* @used_flags: Channel is used by net driver
* @enabled: Channel enabled indicator
@@ -353,7 +352,6 @@ enum efx_rx_alloc_method {
*/
struct efx_channel {
struct efx_nic *efx;
- int evqnum;
int channel;
int used_flags;
bool enabled;
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 28/52] sfc: Cleanup RX event processing
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (26 preceding siblings ...)
2008-09-01 11:48 ` [PATCH 27/52] sfc: Remove efx_channel::evqnum field Ben Hutchings
@ 2008-09-01 11:48 ` Ben Hutchings
2008-09-01 11:48 ` [PATCH 29/52] sfc: Implement get_sset_count, replacing get_stats_count and self_test_count Ben Hutchings
` (23 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:48 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
Make efx_process_channel() and falcon_process_eventq() return the
number of packets received rather than updating the quota, consistent
with new NAPI.
Since channels and RX queues are mapped one-to-one, remove return
value from falcon_handle_rx_event() and add a warning for events
with the wrong RX queue number.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/efx.c | 27 ++++++++++-----------------
drivers/net/sfc/falcon.c | 30 ++++++++++++------------------
drivers/net/sfc/falcon.h | 2 +-
3 files changed, 23 insertions(+), 36 deletions(-)
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c
index 22004a6..864095e 100644
--- a/drivers/net/sfc/efx.c
+++ b/drivers/net/sfc/efx.c
@@ -160,14 +160,16 @@ static void efx_fini_channels(struct efx_nic *efx);
*/
static int efx_process_channel(struct efx_channel *channel, int rx_quota)
{
- int rxdmaqs;
- struct efx_rx_queue *rx_queue;
+ struct efx_nic *efx = channel->efx;
+ int rx_packets;
- if (unlikely(channel->efx->reset_pending != RESET_TYPE_NONE ||
+ if (unlikely(efx->reset_pending != RESET_TYPE_NONE ||
!channel->enabled))
- return rx_quota;
+ return 0;
- rxdmaqs = falcon_process_eventq(channel, &rx_quota);
+ rx_packets = falcon_process_eventq(channel, rx_quota);
+ if (rx_packets == 0)
+ return 0;
/* Deliver last RX packet. */
if (channel->rx_pkt) {
@@ -179,16 +181,9 @@ static int efx_process_channel(struct efx_channel *channel, int rx_quota)
efx_flush_lro(channel);
efx_rx_strategy(channel);
- /* Refill descriptor rings as necessary */
- rx_queue = &channel->efx->rx_queue[0];
- while (rxdmaqs) {
- if (rxdmaqs & 0x01)
- efx_fast_push_rx_descriptors(rx_queue);
- rx_queue++;
- rxdmaqs >>= 1;
- }
+ efx_fast_push_rx_descriptors(&efx->rx_queue[channel->channel]);
- return rx_quota;
+ return rx_packets;
}
/* Mark channel as finished processing
@@ -218,14 +213,12 @@ static int efx_poll(struct napi_struct *napi, int budget)
struct efx_channel *channel =
container_of(napi, struct efx_channel, napi_str);
struct net_device *napi_dev = channel->napi_dev;
- int unused;
int rx_packets;
EFX_TRACE(channel->efx, "channel %d NAPI poll executing on CPU %d\n",
channel->channel, raw_smp_processor_id());
- unused = efx_process_channel(channel, budget);
- rx_packets = (budget - unused);
+ rx_packets = efx_process_channel(channel, budget);
if (rx_packets < budget) {
/* There is no race here; although napi_disable() will
diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c
index 7b1c387..96cb5d0 100644
--- a/drivers/net/sfc/falcon.c
+++ b/drivers/net/sfc/falcon.c
@@ -952,10 +952,10 @@ static void falcon_handle_rx_bad_index(struct efx_rx_queue *rx_queue,
* Also "is multicast" and "matches multicast filter" flags can be used to
* discard non-matching multicast packets.
*/
-static int falcon_handle_rx_event(struct efx_channel *channel,
- const efx_qword_t *event)
+static void falcon_handle_rx_event(struct efx_channel *channel,
+ const efx_qword_t *event)
{
- unsigned int rx_ev_q_label, rx_ev_desc_ptr, rx_ev_byte_cnt;
+ unsigned int rx_ev_desc_ptr, rx_ev_byte_cnt;
unsigned int rx_ev_hdr_type, rx_ev_mcast_pkt;
unsigned expected_ptr;
bool rx_ev_pkt_ok, discard = false, checksummed;
@@ -968,16 +968,14 @@ static int falcon_handle_rx_event(struct efx_channel *channel,
rx_ev_hdr_type = EFX_QWORD_FIELD(*event, RX_EV_HDR_TYPE);
WARN_ON(EFX_QWORD_FIELD(*event, RX_EV_JUMBO_CONT));
WARN_ON(EFX_QWORD_FIELD(*event, RX_EV_SOP) != 1);
+ WARN_ON(EFX_QWORD_FIELD(*event, RX_EV_Q_LABEL) != channel->channel);
- rx_ev_q_label = EFX_QWORD_FIELD(*event, RX_EV_Q_LABEL);
- rx_queue = &efx->rx_queue[rx_ev_q_label];
+ rx_queue = &efx->rx_queue[channel->channel];
rx_ev_desc_ptr = EFX_QWORD_FIELD(*event, RX_EV_DESC_PTR);
expected_ptr = rx_queue->removed_count & FALCON_RXD_RING_MASK;
- if (unlikely(rx_ev_desc_ptr != expected_ptr)) {
+ if (unlikely(rx_ev_desc_ptr != expected_ptr))
falcon_handle_rx_bad_index(rx_queue, rx_ev_desc_ptr);
- return rx_ev_q_label;
- }
if (likely(rx_ev_pkt_ok)) {
/* If packet is marked as OK and packet type is TCP/IPv4 or
@@ -1003,8 +1001,6 @@ static int falcon_handle_rx_event(struct efx_channel *channel,
/* Handle received packet */
efx_rx_packet(rx_queue, rx_ev_desc_ptr, rx_ev_byte_cnt,
checksummed, discard);
-
- return rx_ev_q_label;
}
/* Global events are basically PHY events */
@@ -1109,13 +1105,12 @@ static void falcon_handle_driver_event(struct efx_channel *channel,
}
}
-int falcon_process_eventq(struct efx_channel *channel, int *rx_quota)
+int falcon_process_eventq(struct efx_channel *channel, int rx_quota)
{
unsigned int read_ptr;
efx_qword_t event, *p_event;
int ev_code;
- int rxq;
- int rxdmaqs = 0;
+ int rx_packets = 0;
read_ptr = channel->eventq_read_ptr;
@@ -1137,9 +1132,8 @@ int falcon_process_eventq(struct efx_channel *channel, int *rx_quota)
switch (ev_code) {
case RX_IP_EV_DECODE:
- rxq = falcon_handle_rx_event(channel, &event);
- rxdmaqs |= (1 << rxq);
- (*rx_quota)--;
+ falcon_handle_rx_event(channel, &event);
+ ++rx_packets;
break;
case TX_IP_EV_DECODE:
falcon_handle_tx_event(channel, &event);
@@ -1166,10 +1160,10 @@ int falcon_process_eventq(struct efx_channel *channel, int *rx_quota)
/* Increment read pointer */
read_ptr = (read_ptr + 1) & FALCON_EVQ_MASK;
- } while (*rx_quota);
+ } while (rx_packets < rx_quota);
channel->eventq_read_ptr = read_ptr;
- return rxdmaqs;
+ return rx_packets;
}
void falcon_set_int_moderation(struct efx_channel *channel)
diff --git a/drivers/net/sfc/falcon.h b/drivers/net/sfc/falcon.h
index a72f50e..4cf05d0 100644
--- a/drivers/net/sfc/falcon.h
+++ b/drivers/net/sfc/falcon.h
@@ -57,7 +57,7 @@ extern int falcon_probe_eventq(struct efx_channel *channel);
extern int falcon_init_eventq(struct efx_channel *channel);
extern void falcon_fini_eventq(struct efx_channel *channel);
extern void falcon_remove_eventq(struct efx_channel *channel);
-extern int falcon_process_eventq(struct efx_channel *channel, int *rx_quota);
+extern int falcon_process_eventq(struct efx_channel *channel, int rx_quota);
extern void falcon_eventq_read_ack(struct efx_channel *channel);
/* Ports */
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 29/52] sfc: Implement get_sset_count, replacing get_stats_count and self_test_count
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (27 preceding siblings ...)
2008-09-01 11:48 ` [PATCH 28/52] sfc: Cleanup RX event processing Ben Hutchings
@ 2008-09-01 11:48 ` Ben Hutchings
2008-09-01 11:48 ` [PATCH 30/52] sfc: Make PHY flash mode a device attribute, not a module parameter Ben Hutchings
` (22 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:48 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/ethtool.c | 23 ++++++++++++-----------
1 files changed, 12 insertions(+), 11 deletions(-)
diff --git a/drivers/net/sfc/ethtool.c b/drivers/net/sfc/ethtool.c
index 72a2eb2..906d18a 100644
--- a/drivers/net/sfc/ethtool.c
+++ b/drivers/net/sfc/ethtool.c
@@ -373,16 +373,18 @@ static int efx_ethtool_fill_self_tests(struct efx_nic *efx,
return n;
}
-static int efx_ethtool_get_stats_count(struct net_device *net_dev)
+static int efx_ethtool_get_sset_count(struct net_device *net_dev,
+ int string_set)
{
- return EFX_ETHTOOL_NUM_STATS;
-}
-
-static int efx_ethtool_self_test_count(struct net_device *net_dev)
-{
- struct efx_nic *efx = netdev_priv(net_dev);
-
- return efx_ethtool_fill_self_tests(efx, NULL, NULL, NULL);
+ switch (string_set) {
+ case ETH_SS_STATS:
+ return EFX_ETHTOOL_NUM_STATS;
+ case ETH_SS_TEST:
+ return efx_ethtool_fill_self_tests(netdev_priv(net_dev),
+ NULL, NULL, NULL);
+ default:
+ return -EINVAL;
+ }
}
static void efx_ethtool_get_strings(struct net_device *net_dev,
@@ -719,10 +721,9 @@ struct ethtool_ops efx_ethtool_ops = {
.set_tso = ethtool_op_set_tso,
.get_flags = ethtool_op_get_flags,
.set_flags = ethtool_op_set_flags,
- .self_test_count = efx_ethtool_self_test_count,
+ .get_sset_count = efx_ethtool_get_sset_count,
.self_test = efx_ethtool_self_test,
.get_strings = efx_ethtool_get_strings,
.phys_id = efx_ethtool_phys_id,
- .get_stats_count = efx_ethtool_get_stats_count,
.get_ethtool_stats = efx_ethtool_get_stats,
};
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 30/52] sfc: Make PHY flash mode a device attribute, not a module parameter
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (28 preceding siblings ...)
2008-09-01 11:48 ` [PATCH 29/52] sfc: Implement get_sset_count, replacing get_stats_count and self_test_count Ben Hutchings
@ 2008-09-01 11:48 ` Ben Hutchings
2008-09-01 11:48 ` [PATCH 31/52] sfc: Do not call netif_{stop,wake}_queue() before register_netdev Ben Hutchings
` (21 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:48 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
This allows updating PHY firmware for one interface without removing
all other interfaces handled by the driver.
Replace tx_disabled flags and 10Xpress status enumeration with flags in
enum efx_phy_mode.
Prevent an interface from being brought up while in PHY flash mode.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/boards.h | 2 -
drivers/net/sfc/efx.c | 3 +
drivers/net/sfc/falcon_xmac.c | 15 ++--
drivers/net/sfc/mdio_10g.c | 4 +-
drivers/net/sfc/net_driver.h | 21 ++++-
drivers/net/sfc/phy.h | 8 --
drivers/net/sfc/sfe4001.c | 186 ++++++++++++++++++++++++++---------------
drivers/net/sfc/tenxpress.c | 46 ++++-------
drivers/net/sfc/xfp_phy.c | 9 +-
9 files changed, 171 insertions(+), 123 deletions(-)
diff --git a/drivers/net/sfc/boards.h b/drivers/net/sfc/boards.h
index e5e8443..c6e01b6 100644
--- a/drivers/net/sfc/boards.h
+++ b/drivers/net/sfc/boards.h
@@ -21,7 +21,5 @@ enum efx_board_type {
extern int efx_set_board_info(struct efx_nic *efx, u16 revision_info);
extern int sfe4001_init(struct efx_nic *efx);
-/* Are we putting the PHY into flash config mode */
-extern unsigned int sfe4001_phy_flash_cfg;
#endif
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c
index 864095e..d41a6e3 100644
--- a/drivers/net/sfc/efx.c
+++ b/drivers/net/sfc/efx.c
@@ -1296,6 +1296,9 @@ static int efx_net_open(struct net_device *net_dev)
EFX_LOG(efx, "opening device %s on CPU %d\n", net_dev->name,
raw_smp_processor_id());
+ if (efx->phy_mode & PHY_MODE_SPECIAL)
+ return -EBUSY;
+
efx_start_all(efx);
return 0;
}
diff --git a/drivers/net/sfc/falcon_xmac.c b/drivers/net/sfc/falcon_xmac.c
index be5a86f..5620d9d 100644
--- a/drivers/net/sfc/falcon_xmac.c
+++ b/drivers/net/sfc/falcon_xmac.c
@@ -69,10 +69,6 @@ static int falcon_reset_xmac(struct efx_nic *efx)
udelay(10);
}
- /* This often fails when DSP is disabled, ignore it */
- if (sfe4001_phy_flash_cfg)
- return 0;
-
EFX_ERR(efx, "timed out waiting for XMAC core reset\n");
return -ETIMEDOUT;
}
@@ -444,7 +440,8 @@ static bool falcon_check_xaui_link_up(struct efx_nic *efx)
max_tries = tries;
if ((efx->loopback_mode == LOOPBACK_NETWORK) ||
- (efx->phy_type == PHY_TYPE_NONE))
+ (efx->phy_type == PHY_TYPE_NONE) ||
+ efx_phy_mode_disabled(efx->phy_mode))
return false;
while (tries) {
@@ -471,7 +468,11 @@ void falcon_reconfigure_xmac(struct efx_nic *efx)
falcon_deconfigure_mac_wrapper(efx);
- efx->tx_disabled = LOOPBACK_INTERNAL(efx);
+ /* Reconfigure the PHY, disabling transmit in mac level loopback. */
+ if (LOOPBACK_INTERNAL(efx))
+ efx->phy_mode |= PHY_MODE_TX_DISABLED;
+ else
+ efx->phy_mode &= ~PHY_MODE_TX_DISABLED;
efx->phy_op->reconfigure(efx);
falcon_reconfigure_xgxs_core(efx);
@@ -566,7 +567,7 @@ int falcon_check_xmac(struct efx_nic *efx)
int rc;
if ((efx->loopback_mode == LOOPBACK_NETWORK) ||
- (efx->phy_type == PHY_TYPE_NONE))
+ efx_phy_mode_disabled(efx->phy_mode))
return 0;
falcon_mask_status_intr(efx, false);
diff --git a/drivers/net/sfc/mdio_10g.c b/drivers/net/sfc/mdio_10g.c
index 4064946..003e48d 100644
--- a/drivers/net/sfc/mdio_10g.c
+++ b/drivers/net/sfc/mdio_10g.c
@@ -172,6 +172,8 @@ bool mdio_clause45_links_ok(struct efx_nic *efx, unsigned int mmd_mask)
return true;
else if (efx->loopback_mode == LOOPBACK_NETWORK)
return false;
+ else if (efx_phy_mode_disabled(efx->phy_mode))
+ return false;
else if (efx->loopback_mode == LOOPBACK_PHYXS)
mmd_mask &= ~(MDIO_MMDREG_DEVS0_PHYXS |
MDIO_MMDREG_DEVS0_PCS |
@@ -206,7 +208,7 @@ void mdio_clause45_transmit_disable(struct efx_nic *efx)
ctrl1 = ctrl2 = mdio_clause45_read(efx, phy_id, MDIO_MMD_PMAPMD,
MDIO_MMDREG_TXDIS);
- if (efx->tx_disabled)
+ if (efx->phy_mode & PHY_MODE_TX_DISABLED)
ctrl2 |= (1 << MDIO_MMDREG_TXDIS_GLOBAL_LBN);
else
ctrl1 &= ~(1 << MDIO_MMDREG_TXDIS_GLOBAL_LBN);
diff --git a/drivers/net/sfc/net_driver.h b/drivers/net/sfc/net_driver.h
index e65d661..df863bc 100644
--- a/drivers/net/sfc/net_driver.h
+++ b/drivers/net/sfc/net_driver.h
@@ -519,6 +519,23 @@ struct efx_phy_operations {
unsigned loopbacks;
};
+/**
+ * @enum efx_phy_mode - PHY operating mode flags
+ * @PHY_MODE_NORMAL: on and should pass traffic
+ * @PHY_MODE_TX_DISABLED: on with TX disabled
+ * @PHY_MODE_SPECIAL: on but will not pass traffic
+ */
+enum efx_phy_mode {
+ PHY_MODE_NORMAL = 0,
+ PHY_MODE_TX_DISABLED = 1,
+ PHY_MODE_SPECIAL = 8,
+};
+
+static inline bool efx_phy_mode_disabled(enum efx_phy_mode mode)
+{
+ return (mode & ~PHY_MODE_TX_DISABLED) != 0;
+}
+
/*
* Efx extended statistics
*
@@ -661,7 +678,7 @@ union efx_multicast_hash {
* @phy_op: PHY interface
* @phy_data: PHY private data (including PHY-specific stats)
* @mii: PHY interface
- * @tx_disabled: PHY transmitter turned off
+ * @phy_mode: PHY operating mode
* @link_up: Link status
* @link_options: Link options (MII/GMII format)
* @n_link_state_changes: Number of times the link has changed state
@@ -735,7 +752,7 @@ struct efx_nic {
struct efx_phy_operations *phy_op;
void *phy_data;
struct mii_if_info mii;
- bool tx_disabled;
+ enum efx_phy_mode phy_mode;
bool link_up;
unsigned int link_options;
diff --git a/drivers/net/sfc/phy.h b/drivers/net/sfc/phy.h
index 25bd18e..f746536 100644
--- a/drivers/net/sfc/phy.h
+++ b/drivers/net/sfc/phy.h
@@ -15,14 +15,6 @@
*/
extern struct efx_phy_operations falcon_tenxpress_phy_ops;
-enum tenxpress_state {
- TENXPRESS_STATUS_OFF = 0,
- TENXPRESS_STATUS_OTEMP = 1,
- TENXPRESS_STATUS_NORMAL = 2,
-};
-
-extern void tenxpress_set_state(struct efx_nic *efx,
- enum tenxpress_state state);
extern void tenxpress_phy_blink(struct efx_nic *efx, bool blink);
extern void tenxpress_crc_err(struct efx_nic *efx);
diff --git a/drivers/net/sfc/sfe4001.c b/drivers/net/sfc/sfe4001.c
index f927281..d90fab5 100644
--- a/drivers/net/sfc/sfe4001.c
+++ b/drivers/net/sfc/sfe4001.c
@@ -13,6 +13,7 @@
* the PHY
*/
#include <linux/delay.h>
+#include "net_driver.h"
#include "efx.h"
#include "phy.h"
#include "boards.h"
@@ -120,52 +121,15 @@ static void sfe4001_poweroff(struct efx_nic *efx)
i2c_smbus_read_byte_data(hwmon_client, RSL);
}
-static void sfe4001_fini(struct efx_nic *efx)
+static int sfe4001_poweron(struct efx_nic *efx)
{
- EFX_INFO(efx, "%s\n", __func__);
-
- sfe4001_poweroff(efx);
- i2c_unregister_device(efx->board_info.ioexp_client);
- i2c_unregister_device(efx->board_info.hwmon_client);
-}
-
-/* The P0_EN_3V3X line on SFE4001 boards (from A2 onward) is connected
- * to the FLASH_CFG_1 input on the DSP. We must keep it high at power-
- * up to allow writing the flash (done through MDIO from userland).
- */
-unsigned int sfe4001_phy_flash_cfg;
-module_param_named(phy_flash_cfg, sfe4001_phy_flash_cfg, uint, 0444);
-MODULE_PARM_DESC(phy_flash_cfg,
- "Force PHY to enter flash configuration mode");
-
-/* This board uses an I2C expander to provider power to the PHY, which needs to
- * be turned on before the PHY can be used.
- * Context: Process context, rtnl lock held
- */
-int sfe4001_init(struct efx_nic *efx)
-{
- struct i2c_client *hwmon_client, *ioexp_client;
+ struct i2c_client *hwmon_client = efx->board_info.hwmon_client;
+ struct i2c_client *ioexp_client = efx->board_info.ioexp_client;
unsigned int i, j;
int rc;
u8 out;
efx_dword_t reg;
- hwmon_client = i2c_new_dummy(&efx->i2c_adap, MAX6647);
- if (!hwmon_client)
- return -EIO;
- efx->board_info.hwmon_client = hwmon_client;
-
- ioexp_client = i2c_new_dummy(&efx->i2c_adap, PCA9539);
- if (!ioexp_client) {
- rc = -EIO;
- goto fail_hwmon;
- }
- efx->board_info.ioexp_client = ioexp_client;
-
- /* 10Xpress has fixed-function LED pins, so there is no board-specific
- * blink code. */
- efx->board_info.blink = tenxpress_phy_blink;
-
/* Ensure that XGXS and XAUI SerDes are held in reset */
EFX_POPULATE_DWORD_7(reg, XX_PWRDNA_EN, 1,
XX_PWRDNB_EN, 1,
@@ -177,33 +141,15 @@ int sfe4001_init(struct efx_nic *efx)
falcon_xmac_writel(efx, ®, XX_PWR_RST_REG_MAC);
udelay(10);
- efx->board_info.fini = sfe4001_fini;
-
- /* Set DSP over-temperature alert threshold */
- EFX_INFO(efx, "DSP cut-out at %dC\n", xgphy_max_temperature);
- rc = i2c_smbus_write_byte_data(hwmon_client, WLHO,
- xgphy_max_temperature);
- if (rc)
- goto fail_ioexp;
-
- /* Read it back and verify */
- rc = i2c_smbus_read_byte_data(hwmon_client, RLHN);
- if (rc < 0)
- goto fail_ioexp;
- if (rc != xgphy_max_temperature) {
- rc = -EFAULT;
- goto fail_ioexp;
- }
-
/* Clear any previous over-temperature alert */
rc = i2c_smbus_read_byte_data(hwmon_client, RSL);
if (rc < 0)
- goto fail_ioexp;
+ return rc;
/* Enable port 0 and port 1 outputs on IO expander */
rc = i2c_smbus_write_byte_data(ioexp_client, P0_CONFIG, 0x00);
if (rc)
- goto fail_ioexp;
+ return rc;
rc = i2c_smbus_write_byte_data(ioexp_client, P1_CONFIG,
0xff & ~(1 << P1_SPARE_LBN));
if (rc)
@@ -231,7 +177,7 @@ int sfe4001_init(struct efx_nic *efx)
out = 0xff & ~((1 << P0_EN_1V2_LBN) | (1 << P0_EN_2V5_LBN) |
(1 << P0_EN_3V3X_LBN) | (1 << P0_EN_5V_LBN) |
(1 << P0_X_TRST_LBN));
- if (sfe4001_phy_flash_cfg)
+ if (efx->phy_mode & PHY_MODE_SPECIAL)
out |= 1 << P0_EN_3V3X_LBN;
rc = i2c_smbus_write_byte_data(ioexp_client, P0_OUT, out);
@@ -250,9 +196,9 @@ int sfe4001_init(struct efx_nic *efx)
/* In flash config mode, DSP does not turn on AFE, so
* just wait 1 second.
*/
- if (sfe4001_phy_flash_cfg) {
+ if (efx->phy_mode & PHY_MODE_SPECIAL) {
schedule_timeout_uninterruptible(HZ);
- goto done;
+ return 0;
}
for (j = 0; j < 10; ++j) {
@@ -263,23 +209,127 @@ int sfe4001_init(struct efx_nic *efx)
if (rc < 0)
goto fail_on;
if (rc & (1 << P1_AFE_PWD_LBN))
- goto done;
+ return 0;
}
}
EFX_INFO(efx, "timed out waiting for DSP boot\n");
rc = -ETIMEDOUT;
- goto fail_on;
+fail_on:
+ sfe4001_poweroff(efx);
+ return rc;
+}
+
+/* On SFE4001 rev A2 and later, we can control the FLASH_CFG_1 pin
+ * using the 3V3X output of the IO-expander. Allow the user to set
+ * this when the device is stopped, and keep it stopped then.
+ */
+
+static ssize_t show_phy_flash_cfg(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct efx_nic *efx = pci_get_drvdata(to_pci_dev(dev));
+ return sprintf(buf, "%d\n", !!(efx->phy_mode & PHY_MODE_SPECIAL));
+}
+
+static ssize_t set_phy_flash_cfg(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct efx_nic *efx = pci_get_drvdata(to_pci_dev(dev));
+ enum efx_phy_mode old_mode, new_mode;
+ int err;
+
+ rtnl_lock();
+ old_mode = efx->phy_mode;
+ if (count == 0 || *buf == '0')
+ new_mode = old_mode & ~PHY_MODE_SPECIAL;
+ else
+ new_mode = PHY_MODE_SPECIAL;
+ if (old_mode == new_mode) {
+ err = 0;
+ } else if (efx->state != STATE_RUNNING || netif_running(efx->net_dev)) {
+ err = -EBUSY;
+ } else {
+ efx->phy_mode = new_mode;
+ err = sfe4001_poweron(efx);
+ efx_reconfigure_port(efx);
+ }
+ rtnl_unlock();
+
+ return err ? err : count;
+}
+
+static DEVICE_ATTR(phy_flash_cfg, 0644, show_phy_flash_cfg, set_phy_flash_cfg);
+
+static void sfe4001_fini(struct efx_nic *efx)
+{
+ EFX_INFO(efx, "%s\n", __func__);
+
+ device_remove_file(&efx->pci_dev->dev, &dev_attr_phy_flash_cfg);
+ sfe4001_poweroff(efx);
+ i2c_unregister_device(efx->board_info.ioexp_client);
+ i2c_unregister_device(efx->board_info.hwmon_client);
+}
+
+/* This board uses an I2C expander to provider power to the PHY, which needs to
+ * be turned on before the PHY can be used.
+ * Context: Process context, rtnl lock held
+ */
+int sfe4001_init(struct efx_nic *efx)
+{
+ struct i2c_client *hwmon_client;
+ int rc;
+
+ hwmon_client = i2c_new_dummy(&efx->i2c_adap, MAX6647);
+ if (!hwmon_client)
+ return -EIO;
+ efx->board_info.hwmon_client = hwmon_client;
+
+ /* Set DSP over-temperature alert threshold */
+ EFX_INFO(efx, "DSP cut-out at %dC\n", xgphy_max_temperature);
+ rc = i2c_smbus_write_byte_data(hwmon_client, WLHO,
+ xgphy_max_temperature);
+ if (rc)
+ goto fail_ioexp;
+
+ /* Read it back and verify */
+ rc = i2c_smbus_read_byte_data(hwmon_client, RLHN);
+ if (rc < 0)
+ goto fail_ioexp;
+ if (rc != xgphy_max_temperature) {
+ rc = -EFAULT;
+ goto fail_ioexp;
+ }
+
+ efx->board_info.ioexp_client = i2c_new_dummy(&efx->i2c_adap, PCA9539);
+ if (!efx->board_info.ioexp_client) {
+ rc = -EIO;
+ goto fail_hwmon;
+ }
+
+ /* 10Xpress has fixed-function LED pins, so there is no board-specific
+ * blink code. */
+ efx->board_info.blink = tenxpress_phy_blink;
+
+ efx->board_info.fini = sfe4001_fini;
+
+ rc = sfe4001_poweron(efx);
+ if (rc)
+ goto fail_ioexp;
+
+ rc = device_create_file(&efx->pci_dev->dev, &dev_attr_phy_flash_cfg);
+ if (rc)
+ goto fail_on;
-done:
EFX_INFO(efx, "PHY is powered on\n");
return 0;
fail_on:
sfe4001_poweroff(efx);
fail_ioexp:
- i2c_unregister_device(ioexp_client);
+ i2c_unregister_device(efx->board_info.ioexp_client);
fail_hwmon:
- i2c_unregister_device(hwmon_client);
+ i2c_unregister_device(hwmon_client);
return rc;
}
diff --git a/drivers/net/sfc/tenxpress.c b/drivers/net/sfc/tenxpress.c
index b92b24b..499e127 100644
--- a/drivers/net/sfc/tenxpress.c
+++ b/drivers/net/sfc/tenxpress.c
@@ -119,27 +119,12 @@ MODULE_PARM_DESC(crc_error_reset_threshold,
"Max number of CRC errors before XAUI reset");
struct tenxpress_phy_data {
- enum tenxpress_state state;
enum efx_loopback_mode loopback_mode;
atomic_t bad_crc_count;
- bool tx_disabled;
+ enum efx_phy_mode phy_mode;
int bad_lp_tries;
};
-static int tenxpress_state_is(struct efx_nic *efx, int state)
-{
- struct tenxpress_phy_data *phy_data = efx->phy_data;
- return (phy_data != NULL) && (state == phy_data->state);
-}
-
-void tenxpress_set_state(struct efx_nic *efx,
- enum tenxpress_state state)
-{
- struct tenxpress_phy_data *phy_data = efx->phy_data;
- if (phy_data != NULL)
- phy_data->state = state;
-}
-
void tenxpress_crc_err(struct efx_nic *efx)
{
struct tenxpress_phy_data *phy_data = efx->phy_data;
@@ -214,15 +199,12 @@ static int tenxpress_phy_init(struct efx_nic *efx)
if (!phy_data)
return -ENOMEM;
efx->phy_data = phy_data;
+ phy_data->phy_mode = efx->phy_mode;
- tenxpress_set_state(efx, TENXPRESS_STATUS_NORMAL);
-
- if (!sfe4001_phy_flash_cfg) {
- rc = mdio_clause45_wait_reset_mmds(efx,
- TENXPRESS_REQUIRED_DEVS);
- if (rc < 0)
- goto fail;
- }
+ rc = mdio_clause45_wait_reset_mmds(efx,
+ TENXPRESS_REQUIRED_DEVS);
+ if (rc < 0)
+ goto fail;
rc = mdio_clause45_check_mmds(efx, TENXPRESS_REQUIRED_DEVS, 0);
if (rc < 0)
@@ -370,13 +352,16 @@ static void tenxpress_phy_reconfigure(struct efx_nic *efx)
bool loop_change = LOOPBACK_OUT_OF(phy_data, efx,
TENXPRESS_LOOPBACKS);
- if (!tenxpress_state_is(efx, TENXPRESS_STATUS_NORMAL))
+ if (efx->phy_mode & PHY_MODE_SPECIAL) {
+ phy_data->phy_mode = efx->phy_mode;
return;
+ }
/* When coming out of transmit disable, coming out of low power
* mode, or moving out of any PHY internal loopback mode,
* perform a special software reset */
- if ((phy_data->tx_disabled && !efx->tx_disabled) ||
+ if ((efx->phy_mode == PHY_MODE_NORMAL &&
+ phy_data->phy_mode != PHY_MODE_NORMAL) ||
loop_change) {
tenxpress_special_reset(efx);
falcon_reset_xaui(efx);
@@ -386,8 +371,8 @@ static void tenxpress_phy_reconfigure(struct efx_nic *efx)
mdio_clause45_phy_reconfigure(efx);
tenxpress_phyxs_loopback(efx);
- phy_data->tx_disabled = efx->tx_disabled;
phy_data->loopback_mode = efx->loopback_mode;
+ phy_data->phy_mode = efx->phy_mode;
efx->link_up = tenxpress_link_ok(efx, false);
efx->link_options = GM_LPA_10000FULL;
}
@@ -402,16 +387,15 @@ static void tenxpress_phy_clear_interrupt(struct efx_nic *efx)
static int tenxpress_phy_check_hw(struct efx_nic *efx)
{
struct tenxpress_phy_data *phy_data = efx->phy_data;
- bool phy_up = tenxpress_state_is(efx, TENXPRESS_STATUS_NORMAL);
bool link_ok;
- link_ok = phy_up && tenxpress_link_ok(efx, true);
+ link_ok = (phy_data->phy_mode == PHY_MODE_NORMAL &&
+ tenxpress_link_ok(efx, true));
if (link_ok != efx->link_up)
falcon_xmac_sim_phy_event(efx);
- /* Nothing to check if we've already shut down the PHY */
- if (!phy_up)
+ if (phy_data->phy_mode != PHY_MODE_NORMAL)
return 0;
if (atomic_read(&phy_data->bad_crc_count) > crc_error_reset_threshold) {
diff --git a/drivers/net/sfc/xfp_phy.c b/drivers/net/sfc/xfp_phy.c
index fd4045b..f6edecc 100644
--- a/drivers/net/sfc/xfp_phy.c
+++ b/drivers/net/sfc/xfp_phy.c
@@ -40,7 +40,7 @@ void xfp_set_led(struct efx_nic *p, int led, int mode)
}
struct xfp_phy_data {
- bool tx_disabled;
+ enum efx_phy_mode phy_mode;
};
#define XFP_MAX_RESET_TIME 500
@@ -93,7 +93,7 @@ static int xfp_phy_init(struct efx_nic *efx)
" %x)\n", devid, MDIO_ID_OUI(devid), MDIO_ID_MODEL(devid),
MDIO_ID_REV(devid));
- phy_data->tx_disabled = efx->tx_disabled;
+ phy_data->phy_mode = efx->phy_mode;
rc = xfp_reset_phy(efx);
@@ -136,13 +136,14 @@ static void xfp_phy_reconfigure(struct efx_nic *efx)
struct xfp_phy_data *phy_data = efx->phy_data;
/* Reset the PHY when moving from tx off to tx on */
- if (phy_data->tx_disabled && !efx->tx_disabled)
+ if (!(efx->phy_mode & PHY_MODE_TX_DISABLED) &&
+ (phy_data->phy_mode & PHY_MODE_TX_DISABLED))
xfp_reset_phy(efx);
mdio_clause45_transmit_disable(efx);
mdio_clause45_phy_reconfigure(efx);
- phy_data->tx_disabled = efx->tx_disabled;
+ phy_data->phy_mode = efx->phy_mode;
efx->link_up = xfp_link_ok(efx);
efx->link_options = GM_LPA_10000FULL;
}
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 31/52] sfc: Do not call netif_{stop,wake}_queue() before register_netdev
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (29 preceding siblings ...)
2008-09-01 11:48 ` [PATCH 30/52] sfc: Make PHY flash mode a device attribute, not a module parameter Ben Hutchings
@ 2008-09-01 11:48 ` Ben Hutchings
2008-09-01 11:48 ` [PATCH 32/52] sfc: Enable TSO for 802.1q VLAN devices Ben Hutchings
` (20 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:48 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
From: Steve Hodgson <shodgson@solarflare.com>
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/efx.c | 5 +++--
1 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c
index d41a6e3..be9382f 100644
--- a/drivers/net/sfc/efx.c
+++ b/drivers/net/sfc/efx.c
@@ -1027,7 +1027,8 @@ static void efx_start_all(struct efx_nic *efx)
/* Mark the port as enabled so port reconfigurations can start, then
* restart the transmit interface early so the watchdog timer stops */
efx_start_port(efx);
- efx_wake_queue(efx);
+ if (efx_dev_registered(efx))
+ efx_wake_queue(efx);
efx_for_each_channel(channel, efx)
efx_start_channel(channel);
@@ -1102,8 +1103,8 @@ static void efx_stop_all(struct efx_nic *efx)
/* Stop the kernel transmit interface late, so the watchdog
* timer isn't ticking over the flush */
- efx_stop_queue(efx);
if (efx_dev_registered(efx)) {
+ efx_stop_queue(efx);
netif_tx_lock_bh(efx->net_dev);
netif_tx_unlock_bh(efx->net_dev);
}
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 32/52] sfc: Enable TSO for 802.1q VLAN devices
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (30 preceding siblings ...)
2008-09-01 11:48 ` [PATCH 31/52] sfc: Do not call netif_{stop,wake}_queue() before register_netdev Ben Hutchings
@ 2008-09-01 11:48 ` Ben Hutchings
2008-09-01 11:48 ` [PATCH 33/52] sfc: Remove efx_nic_dummy_op_int() as redundant with efx_port_dummy_op_int() Ben Hutchings
` (19 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:48 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/efx.c | 2 +-
drivers/net/sfc/tx.c | 25 +++++++++++++++++++------
2 files changed, 20 insertions(+), 7 deletions(-)
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c
index be9382f..5a0494a 100644
--- a/drivers/net/sfc/efx.c
+++ b/drivers/net/sfc/efx.c
@@ -2079,7 +2079,7 @@ static int __devinit efx_pci_probe(struct pci_dev *pci_dev,
net_dev->features |= NETIF_F_LRO;
/* Mask for features that also apply to VLAN devices */
net_dev->vlan_features |= (NETIF_F_ALL_CSUM | NETIF_F_SG |
- NETIF_F_HIGHDMA);
+ NETIF_F_HIGHDMA | NETIF_F_TSO);
efx = netdev_priv(net_dev);
pci_set_drvdata(pci_dev, efx);
rc = efx_init_struct(efx, type, pci_dev, net_dev);
diff --git a/drivers/net/sfc/tx.c b/drivers/net/sfc/tx.c
index 0e9889c..a3a3edd 100644
--- a/drivers/net/sfc/tx.c
+++ b/drivers/net/sfc/tx.c
@@ -105,7 +105,7 @@ struct efx_tso_header {
};
static int efx_enqueue_skb_tso(struct efx_tx_queue *tx_queue,
- const struct sk_buff *skb);
+ struct sk_buff *skb);
static void efx_fini_tso(struct efx_tx_queue *tx_queue);
static void efx_tsoh_heap_free(struct efx_tx_queue *tx_queue,
struct efx_tso_header *tsoh);
@@ -139,7 +139,7 @@ static void efx_tsoh_free(struct efx_tx_queue *tx_queue,
* You must hold netif_tx_lock() to call this function.
*/
static int efx_enqueue_skb(struct efx_tx_queue *tx_queue,
- const struct sk_buff *skb)
+ struct sk_buff *skb)
{
struct efx_nic *efx = tx_queue->efx;
struct pci_dev *pci_dev = efx->pci_dev;
@@ -578,11 +578,24 @@ struct tso_state {
* Verify that our various assumptions about sk_buffs and the conditions
* under which TSO will be attempted hold true.
*/
-static void efx_tso_check_safe(const struct sk_buff *skb)
+static void efx_tso_check_safe(struct sk_buff *skb)
{
- EFX_BUG_ON_PARANOID(skb->protocol != htons(ETH_P_IP));
+ __be16 protocol = skb->protocol;
+
EFX_BUG_ON_PARANOID(((struct ethhdr *)skb->data)->h_proto !=
- skb->protocol);
+ protocol);
+ if (protocol == htons(ETH_P_8021Q)) {
+ /* Find the encapsulated protocol; reset network header
+ * and transport header based on that. */
+ struct vlan_ethhdr *veh = (struct vlan_ethhdr *)skb->data;
+ protocol = veh->h_vlan_encapsulated_proto;
+ skb_set_network_header(skb, sizeof(*veh));
+ if (protocol == htons(ETH_P_IP))
+ skb_set_transport_header(skb, sizeof(*veh) +
+ 4 * ip_hdr(skb)->ihl);
+ }
+
+ EFX_BUG_ON_PARANOID(protocol != htons(ETH_P_IP));
EFX_BUG_ON_PARANOID(ip_hdr(skb)->protocol != IPPROTO_TCP);
EFX_BUG_ON_PARANOID((PTR_DIFF(tcp_hdr(skb), skb->data)
+ (tcp_hdr(skb)->doff << 2u)) >
@@ -1020,7 +1033,7 @@ static int tso_start_new_packet(struct efx_tx_queue *tx_queue,
* %NETDEV_TX_OK or %NETDEV_TX_BUSY.
*/
static int efx_enqueue_skb_tso(struct efx_tx_queue *tx_queue,
- const struct sk_buff *skb)
+ struct sk_buff *skb)
{
struct efx_nic *efx = tx_queue->efx;
int frag_i, rc, rc2 = NETDEV_TX_OK;
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 33/52] sfc: Remove efx_nic_dummy_op_int() as redundant with efx_port_dummy_op_int()
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (31 preceding siblings ...)
2008-09-01 11:48 ` [PATCH 32/52] sfc: Enable TSO for 802.1q VLAN devices Ben Hutchings
@ 2008-09-01 11:48 ` Ben Hutchings
2008-09-01 11:48 ` [PATCH 34/52] sfc: Remove remnants of multi-port abstraction for MAC registers Ben Hutchings
` (18 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:48 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
Update comment on the dummy operation implementations.
Line up the board operation initialisers.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/efx.c | 17 ++++++-----------
1 files changed, 6 insertions(+), 11 deletions(-)
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c
index 5a0494a..c41035a 100644
--- a/drivers/net/sfc/efx.c
+++ b/drivers/net/sfc/efx.c
@@ -1774,7 +1774,7 @@ static struct pci_device_id efx_pci_table[] __devinitdata = {
*
* Dummy PHY/MAC/Board operations
*
- * Can be used where the MAC does not implement this operation
+ * Can be used for some unimplemented operations
* Needed so all function pointers are valid and do not have to be tested
* before use
*
@@ -1795,17 +1795,12 @@ static struct efx_phy_operations efx_dummy_phy_operations = {
.reset_xaui = efx_port_dummy_op_void,
};
-/* Dummy board operations */
-static int efx_nic_dummy_op_int(struct efx_nic *nic)
-{
- return 0;
-}
-
static struct efx_board efx_dummy_board_info = {
- .init = efx_nic_dummy_op_int,
- .init_leds = efx_port_dummy_op_int,
- .set_fault_led = efx_port_dummy_op_blink,
- .fini = efx_port_dummy_op_void,
+ .init = efx_port_dummy_op_int,
+ .init_leds = efx_port_dummy_op_int,
+ .set_fault_led = efx_port_dummy_op_blink,
+ .blink = efx_port_dummy_op_blink,
+ .fini = efx_port_dummy_op_void,
};
/**************************************************************************
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 34/52] sfc: Remove remnants of multi-port abstraction for MAC registers
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (32 preceding siblings ...)
2008-09-01 11:48 ` [PATCH 33/52] sfc: Remove efx_nic_dummy_op_int() as redundant with efx_port_dummy_op_int() Ben Hutchings
@ 2008-09-01 11:48 ` Ben Hutchings
2008-09-01 11:48 ` [PATCH 35/52] sfc: Remove some unreachable error paths Ben Hutchings
` (17 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:48 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/falcon_hwdefs.h | 40 +++----
drivers/net/sfc/falcon_xmac.c | 248 +++++++++++++++++----------------------
drivers/net/sfc/mac.h | 4 -
drivers/net/sfc/sfe4001.c | 7 +-
4 files changed, 129 insertions(+), 170 deletions(-)
diff --git a/drivers/net/sfc/falcon_hwdefs.h b/drivers/net/sfc/falcon_hwdefs.h
index 626735e..7c784f7 100644
--- a/drivers/net/sfc/falcon_hwdefs.h
+++ b/drivers/net/sfc/falcon_hwdefs.h
@@ -493,18 +493,8 @@
#define MAC_MCAST_HASH_REG0_KER 0xca0
#define MAC_MCAST_HASH_REG1_KER 0xcb0
-/* GMAC registers */
-#define FALCON_GMAC_REGBANK 0xe00
-#define FALCON_GMAC_REGBANK_SIZE 0x200
-#define FALCON_GMAC_REG_SIZE 0x10
-
-/* XMAC registers */
-#define FALCON_XMAC_REGBANK 0x1200
-#define FALCON_XMAC_REGBANK_SIZE 0x200
-#define FALCON_XMAC_REG_SIZE 0x10
-
/* XGMAC address register low */
-#define XM_ADR_LO_REG_MAC 0x00
+#define XM_ADR_LO_REG 0x1200
#define XM_ADR_3_LBN 24
#define XM_ADR_3_WIDTH 8
#define XM_ADR_2_LBN 16
@@ -515,14 +505,14 @@
#define XM_ADR_0_WIDTH 8
/* XGMAC address register high */
-#define XM_ADR_HI_REG_MAC 0x01
+#define XM_ADR_HI_REG 0x1210
#define XM_ADR_5_LBN 8
#define XM_ADR_5_WIDTH 8
#define XM_ADR_4_LBN 0
#define XM_ADR_4_WIDTH 8
/* XGMAC global configuration */
-#define XM_GLB_CFG_REG_MAC 0x02
+#define XM_GLB_CFG_REG 0x1220
#define XM_RX_STAT_EN_LBN 11
#define XM_RX_STAT_EN_WIDTH 1
#define XM_TX_STAT_EN_LBN 10
@@ -535,7 +525,7 @@
#define XM_CORE_RST_WIDTH 1
/* XGMAC transmit configuration */
-#define XM_TX_CFG_REG_MAC 0x03
+#define XM_TX_CFG_REG 0x1230
#define XM_IPG_LBN 16
#define XM_IPG_WIDTH 4
#define XM_FCNTL_LBN 10
@@ -550,7 +540,7 @@
#define XM_TXEN_WIDTH 1
/* XGMAC receive configuration */
-#define XM_RX_CFG_REG_MAC 0x04
+#define XM_RX_CFG_REG 0x1240
#define XM_PASS_CRC_ERR_LBN 25
#define XM_PASS_CRC_ERR_WIDTH 1
#define XM_ACPT_ALL_MCAST_LBN 11
@@ -563,7 +553,7 @@
#define XM_RXEN_WIDTH 1
/* XGMAC management interrupt mask register */
-#define XM_MGT_INT_MSK_REG_MAC_B0 0x5
+#define XM_MGT_INT_MSK_REG_B0 0x1250
#define XM_MSK_PRMBLE_ERR_LBN 2
#define XM_MSK_PRMBLE_ERR_WIDTH 1
#define XM_MSK_RMTFLT_LBN 1
@@ -572,29 +562,29 @@
#define XM_MSK_LCLFLT_WIDTH 1
/* XGMAC flow control register */
-#define XM_FC_REG_MAC 0x7
+#define XM_FC_REG 0x1270
#define XM_PAUSE_TIME_LBN 16
#define XM_PAUSE_TIME_WIDTH 16
#define XM_DIS_FCNTL_LBN 0
#define XM_DIS_FCNTL_WIDTH 1
/* XGMAC pause time count register */
-#define XM_PAUSE_TIME_REG_MAC 0x9
+#define XM_PAUSE_TIME_REG 0x1290
/* XGMAC transmit parameter register */
-#define XM_TX_PARAM_REG_MAC 0x0d
+#define XM_TX_PARAM_REG 0x012d0
#define XM_TX_JUMBO_MODE_LBN 31
#define XM_TX_JUMBO_MODE_WIDTH 1
#define XM_MAX_TX_FRM_SIZE_LBN 16
#define XM_MAX_TX_FRM_SIZE_WIDTH 14
/* XGMAC receive parameter register */
-#define XM_RX_PARAM_REG_MAC 0x0e
+#define XM_RX_PARAM_REG 0x12e0
#define XM_MAX_RX_FRM_SIZE_LBN 0
#define XM_MAX_RX_FRM_SIZE_WIDTH 14
/* XGMAC management interrupt status register */
-#define XM_MGT_INT_REG_MAC_B0 0x0f
+#define XM_MGT_INT_REG_B0 0x12f0
#define XM_PRMBLE_ERR 2
#define XM_PRMBLE_WIDTH 1
#define XM_RMTFLT_LBN 1
@@ -603,7 +593,7 @@
#define XM_LCLFLT_WIDTH 1
/* XGXS/XAUI powerdown/reset register */
-#define XX_PWR_RST_REG_MAC 0x10
+#define XX_PWR_RST_REG 0x1300
#define XX_PWRDND_EN_LBN 15
#define XX_PWRDND_EN_WIDTH 1
@@ -633,7 +623,7 @@
#define XX_RST_XX_EN_WIDTH 1
/* XGXS/XAUI powerdown/reset control register */
-#define XX_SD_CTL_REG_MAC 0x11
+#define XX_SD_CTL_REG 0x1310
#define XX_HIDRVD_LBN 15
#define XX_HIDRVD_WIDTH 1
#define XX_LODRVD_LBN 14
@@ -659,7 +649,7 @@
#define XX_LPBKA_LBN 0
#define XX_LPBKA_WIDTH 1
-#define XX_TXDRV_CTL_REG_MAC 0x12
+#define XX_TXDRV_CTL_REG 0x1320
#define XX_DEQD_LBN 28
#define XX_DEQD_WIDTH 4
#define XX_DEQC_LBN 24
@@ -678,7 +668,7 @@
#define XX_DTXA_WIDTH 4
/* XAUI XGXS core status register */
-#define XX_CORE_STAT_REG_MAC 0x16
+#define XX_CORE_STAT_REG 0x1360
#define XX_FORCE_SIG_LBN 24
#define XX_FORCE_SIG_WIDTH 8
#define XX_FORCE_SIG_DECODE_FORCED 0xff
diff --git a/drivers/net/sfc/falcon_xmac.c b/drivers/net/sfc/falcon_xmac.c
index 5620d9d..a9ae06a 100644
--- a/drivers/net/sfc/falcon_xmac.c
+++ b/drivers/net/sfc/falcon_xmac.c
@@ -23,48 +23,20 @@
/**************************************************************************
*
- * MAC register access
- *
- **************************************************************************/
-
-/* Offset of an XMAC register within Falcon */
-#define FALCON_XMAC_REG(mac_reg) \
- (FALCON_XMAC_REGBANK + ((mac_reg) * FALCON_XMAC_REG_SIZE))
-
-void falcon_xmac_writel(struct efx_nic *efx,
- efx_dword_t *value, unsigned int mac_reg)
-{
- efx_oword_t temp;
-
- EFX_POPULATE_OWORD_1(temp, MAC_DATA, EFX_DWORD_FIELD(*value, MAC_DATA));
- falcon_write(efx, &temp, FALCON_XMAC_REG(mac_reg));
-}
-
-void falcon_xmac_readl(struct efx_nic *efx,
- efx_dword_t *value, unsigned int mac_reg)
-{
- efx_oword_t temp;
-
- falcon_read(efx, &temp, FALCON_XMAC_REG(mac_reg));
- EFX_POPULATE_DWORD_1(*value, MAC_DATA, EFX_OWORD_FIELD(temp, MAC_DATA));
-}
-
-/**************************************************************************
- *
* MAC operations
*
*************************************************************************/
static int falcon_reset_xmac(struct efx_nic *efx)
{
- efx_dword_t reg;
+ efx_oword_t reg;
int count;
- EFX_POPULATE_DWORD_1(reg, XM_CORE_RST, 1);
- falcon_xmac_writel(efx, ®, XM_GLB_CFG_REG_MAC);
+ EFX_POPULATE_OWORD_1(reg, XM_CORE_RST, 1);
+ falcon_write(efx, ®, XM_GLB_CFG_REG);
for (count = 0; count < 10000; count++) { /* wait upto 100ms */
- falcon_xmac_readl(efx, ®, XM_GLB_CFG_REG_MAC);
- if (EFX_DWORD_FIELD(reg, XM_CORE_RST) == 0)
+ falcon_read(efx, ®, XM_GLB_CFG_REG);
+ if (EFX_OWORD_FIELD(reg, XM_CORE_RST) == 0)
return 0;
udelay(10);
}
@@ -76,25 +48,25 @@ static int falcon_reset_xmac(struct efx_nic *efx)
/* Configure the XAUI driver that is an output from Falcon */
static void falcon_setup_xaui(struct efx_nic *efx)
{
- efx_dword_t sdctl, txdrv;
+ efx_oword_t sdctl, txdrv;
/* Move the XAUI into low power, unless there is no PHY, in
* which case the XAUI will have to drive a cable. */
if (efx->phy_type == PHY_TYPE_NONE)
return;
- falcon_xmac_readl(efx, &sdctl, XX_SD_CTL_REG_MAC);
- EFX_SET_DWORD_FIELD(sdctl, XX_HIDRVD, XX_SD_CTL_DRV_DEFAULT);
- EFX_SET_DWORD_FIELD(sdctl, XX_LODRVD, XX_SD_CTL_DRV_DEFAULT);
- EFX_SET_DWORD_FIELD(sdctl, XX_HIDRVC, XX_SD_CTL_DRV_DEFAULT);
- EFX_SET_DWORD_FIELD(sdctl, XX_LODRVC, XX_SD_CTL_DRV_DEFAULT);
- EFX_SET_DWORD_FIELD(sdctl, XX_HIDRVB, XX_SD_CTL_DRV_DEFAULT);
- EFX_SET_DWORD_FIELD(sdctl, XX_LODRVB, XX_SD_CTL_DRV_DEFAULT);
- EFX_SET_DWORD_FIELD(sdctl, XX_HIDRVA, XX_SD_CTL_DRV_DEFAULT);
- EFX_SET_DWORD_FIELD(sdctl, XX_LODRVA, XX_SD_CTL_DRV_DEFAULT);
- falcon_xmac_writel(efx, &sdctl, XX_SD_CTL_REG_MAC);
-
- EFX_POPULATE_DWORD_8(txdrv,
+ falcon_read(efx, &sdctl, XX_SD_CTL_REG);
+ EFX_SET_OWORD_FIELD(sdctl, XX_HIDRVD, XX_SD_CTL_DRV_DEFAULT);
+ EFX_SET_OWORD_FIELD(sdctl, XX_LODRVD, XX_SD_CTL_DRV_DEFAULT);
+ EFX_SET_OWORD_FIELD(sdctl, XX_HIDRVC, XX_SD_CTL_DRV_DEFAULT);
+ EFX_SET_OWORD_FIELD(sdctl, XX_LODRVC, XX_SD_CTL_DRV_DEFAULT);
+ EFX_SET_OWORD_FIELD(sdctl, XX_HIDRVB, XX_SD_CTL_DRV_DEFAULT);
+ EFX_SET_OWORD_FIELD(sdctl, XX_LODRVB, XX_SD_CTL_DRV_DEFAULT);
+ EFX_SET_OWORD_FIELD(sdctl, XX_HIDRVA, XX_SD_CTL_DRV_DEFAULT);
+ EFX_SET_OWORD_FIELD(sdctl, XX_LODRVA, XX_SD_CTL_DRV_DEFAULT);
+ falcon_write(efx, &sdctl, XX_SD_CTL_REG);
+
+ EFX_POPULATE_OWORD_8(txdrv,
XX_DEQD, XX_TXDRV_DEQ_DEFAULT,
XX_DEQC, XX_TXDRV_DEQ_DEFAULT,
XX_DEQB, XX_TXDRV_DEQ_DEFAULT,
@@ -103,67 +75,67 @@ static void falcon_setup_xaui(struct efx_nic *efx)
XX_DTXC, XX_TXDRV_DTX_DEFAULT,
XX_DTXB, XX_TXDRV_DTX_DEFAULT,
XX_DTXA, XX_TXDRV_DTX_DEFAULT);
- falcon_xmac_writel(efx, &txdrv, XX_TXDRV_CTL_REG_MAC);
+ falcon_write(efx, &txdrv, XX_TXDRV_CTL_REG);
}
static void falcon_hold_xaui_in_rst(struct efx_nic *efx)
{
- efx_dword_t reg;
-
- EFX_ZERO_DWORD(reg);
- EFX_SET_DWORD_FIELD(reg, XX_PWRDNA_EN, 1);
- EFX_SET_DWORD_FIELD(reg, XX_PWRDNB_EN, 1);
- EFX_SET_DWORD_FIELD(reg, XX_PWRDNC_EN, 1);
- EFX_SET_DWORD_FIELD(reg, XX_PWRDND_EN, 1);
- EFX_SET_DWORD_FIELD(reg, XX_RSTPLLAB_EN, 1);
- EFX_SET_DWORD_FIELD(reg, XX_RSTPLLCD_EN, 1);
- EFX_SET_DWORD_FIELD(reg, XX_RESETA_EN, 1);
- EFX_SET_DWORD_FIELD(reg, XX_RESETB_EN, 1);
- EFX_SET_DWORD_FIELD(reg, XX_RESETC_EN, 1);
- EFX_SET_DWORD_FIELD(reg, XX_RESETD_EN, 1);
- EFX_SET_DWORD_FIELD(reg, XX_RSTXGXSRX_EN, 1);
- EFX_SET_DWORD_FIELD(reg, XX_RSTXGXSTX_EN, 1);
- falcon_xmac_writel(efx, ®, XX_PWR_RST_REG_MAC);
+ efx_oword_t reg;
+
+ EFX_ZERO_OWORD(reg);
+ EFX_SET_OWORD_FIELD(reg, XX_PWRDNA_EN, 1);
+ EFX_SET_OWORD_FIELD(reg, XX_PWRDNB_EN, 1);
+ EFX_SET_OWORD_FIELD(reg, XX_PWRDNC_EN, 1);
+ EFX_SET_OWORD_FIELD(reg, XX_PWRDND_EN, 1);
+ EFX_SET_OWORD_FIELD(reg, XX_RSTPLLAB_EN, 1);
+ EFX_SET_OWORD_FIELD(reg, XX_RSTPLLCD_EN, 1);
+ EFX_SET_OWORD_FIELD(reg, XX_RESETA_EN, 1);
+ EFX_SET_OWORD_FIELD(reg, XX_RESETB_EN, 1);
+ EFX_SET_OWORD_FIELD(reg, XX_RESETC_EN, 1);
+ EFX_SET_OWORD_FIELD(reg, XX_RESETD_EN, 1);
+ EFX_SET_OWORD_FIELD(reg, XX_RSTXGXSRX_EN, 1);
+ EFX_SET_OWORD_FIELD(reg, XX_RSTXGXSTX_EN, 1);
+ falcon_write(efx, ®, XX_PWR_RST_REG);
udelay(10);
}
static int _falcon_reset_xaui_a(struct efx_nic *efx)
{
- efx_dword_t reg;
+ efx_oword_t reg;
falcon_hold_xaui_in_rst(efx);
- falcon_xmac_readl(efx, ®, XX_PWR_RST_REG_MAC);
+ falcon_read(efx, ®, XX_PWR_RST_REG);
/* Follow the RAMBUS XAUI data reset sequencing
* Channels A and B first: power down, reset PLL, reset, clear
*/
- EFX_SET_DWORD_FIELD(reg, XX_PWRDNA_EN, 0);
- EFX_SET_DWORD_FIELD(reg, XX_PWRDNB_EN, 0);
- falcon_xmac_writel(efx, ®, XX_PWR_RST_REG_MAC);
+ EFX_SET_OWORD_FIELD(reg, XX_PWRDNA_EN, 0);
+ EFX_SET_OWORD_FIELD(reg, XX_PWRDNB_EN, 0);
+ falcon_write(efx, ®, XX_PWR_RST_REG);
udelay(10);
- EFX_SET_DWORD_FIELD(reg, XX_RSTPLLAB_EN, 0);
- falcon_xmac_writel(efx, ®, XX_PWR_RST_REG_MAC);
+ EFX_SET_OWORD_FIELD(reg, XX_RSTPLLAB_EN, 0);
+ falcon_write(efx, ®, XX_PWR_RST_REG);
udelay(10);
- EFX_SET_DWORD_FIELD(reg, XX_RESETA_EN, 0);
- EFX_SET_DWORD_FIELD(reg, XX_RESETB_EN, 0);
- falcon_xmac_writel(efx, ®, XX_PWR_RST_REG_MAC);
+ EFX_SET_OWORD_FIELD(reg, XX_RESETA_EN, 0);
+ EFX_SET_OWORD_FIELD(reg, XX_RESETB_EN, 0);
+ falcon_write(efx, ®, XX_PWR_RST_REG);
udelay(10);
/* Channels C and D: power down, reset PLL, reset, clear */
- EFX_SET_DWORD_FIELD(reg, XX_PWRDNC_EN, 0);
- EFX_SET_DWORD_FIELD(reg, XX_PWRDND_EN, 0);
- falcon_xmac_writel(efx, ®, XX_PWR_RST_REG_MAC);
+ EFX_SET_OWORD_FIELD(reg, XX_PWRDNC_EN, 0);
+ EFX_SET_OWORD_FIELD(reg, XX_PWRDND_EN, 0);
+ falcon_write(efx, ®, XX_PWR_RST_REG);
udelay(10);
- EFX_SET_DWORD_FIELD(reg, XX_RSTPLLCD_EN, 0);
- falcon_xmac_writel(efx, ®, XX_PWR_RST_REG_MAC);
+ EFX_SET_OWORD_FIELD(reg, XX_RSTPLLCD_EN, 0);
+ falcon_write(efx, ®, XX_PWR_RST_REG);
udelay(10);
- EFX_SET_DWORD_FIELD(reg, XX_RESETC_EN, 0);
- EFX_SET_DWORD_FIELD(reg, XX_RESETD_EN, 0);
- falcon_xmac_writel(efx, ®, XX_PWR_RST_REG_MAC);
+ EFX_SET_OWORD_FIELD(reg, XX_RESETC_EN, 0);
+ EFX_SET_OWORD_FIELD(reg, XX_RESETD_EN, 0);
+ falcon_write(efx, ®, XX_PWR_RST_REG);
udelay(10);
/* Setup XAUI */
@@ -171,8 +143,8 @@ static int _falcon_reset_xaui_a(struct efx_nic *efx)
udelay(10);
/* Take XGXS out of reset */
- EFX_ZERO_DWORD(reg);
- falcon_xmac_writel(efx, ®, XX_PWR_RST_REG_MAC);
+ EFX_ZERO_OWORD(reg);
+ falcon_write(efx, ®, XX_PWR_RST_REG);
udelay(10);
return 0;
@@ -180,16 +152,16 @@ static int _falcon_reset_xaui_a(struct efx_nic *efx)
static int _falcon_reset_xaui_b(struct efx_nic *efx)
{
- efx_dword_t reg;
+ efx_oword_t reg;
int count;
EFX_POPULATE_DWORD_1(reg, XX_RST_XX_EN, 1);
- falcon_xmac_writel(efx, ®, XX_PWR_RST_REG_MAC);
+ falcon_write(efx, ®, XX_PWR_RST_REG);
/* Give some time for the link to establish */
for (count = 0; count < 1000; count++) { /* wait upto 10ms */
- falcon_xmac_readl(efx, ®, XX_PWR_RST_REG_MAC);
- if (EFX_DWORD_FIELD(reg, XX_RST_XX_EN) == 0) {
+ falcon_read(efx, ®, XX_PWR_RST_REG);
+ if (EFX_OWORD_FIELD(reg, XX_RST_XX_EN) == 0) {
falcon_setup_xaui(efx);
return 0;
}
@@ -215,17 +187,17 @@ int falcon_reset_xaui(struct efx_nic *efx)
static bool falcon_xgmii_status(struct efx_nic *efx)
{
- efx_dword_t reg;
+ efx_oword_t reg;
if (falcon_rev(efx) < FALCON_REV_B0)
return true;
/* The ISR latches, so clear it and re-read */
- falcon_xmac_readl(efx, ®, XM_MGT_INT_REG_MAC_B0);
- falcon_xmac_readl(efx, ®, XM_MGT_INT_REG_MAC_B0);
+ falcon_read(efx, ®, XM_MGT_INT_REG_B0);
+ falcon_read(efx, ®, XM_MGT_INT_REG_B0);
- if (EFX_DWORD_FIELD(reg, XM_LCLFLT) ||
- EFX_DWORD_FIELD(reg, XM_RMTFLT)) {
+ if (EFX_OWORD_FIELD(reg, XM_LCLFLT) ||
+ EFX_OWORD_FIELD(reg, XM_RMTFLT)) {
EFX_INFO(efx, "MGT_INT: "EFX_DWORD_FMT"\n", EFX_DWORD_VAL(reg));
return false;
}
@@ -235,19 +207,19 @@ static bool falcon_xgmii_status(struct efx_nic *efx)
static void falcon_mask_status_intr(struct efx_nic *efx, bool enable)
{
- efx_dword_t reg;
+ efx_oword_t reg;
if ((falcon_rev(efx) < FALCON_REV_B0) || LOOPBACK_INTERNAL(efx))
return;
/* Flush the ISR */
if (enable)
- falcon_xmac_readl(efx, ®, XM_MGT_INT_REG_MAC_B0);
+ falcon_read(efx, ®, XM_MGT_INT_REG_B0);
- EFX_POPULATE_DWORD_2(reg,
+ EFX_POPULATE_OWORD_2(reg,
XM_MSK_RMTFLT, !enable,
XM_MSK_LCLFLT, !enable);
- falcon_xmac_writel(efx, ®, XM_MGT_INT_MSK_REG_MAC_B0);
+ falcon_write(efx, ®, XM_MGT_INT_MSK_REG_B0);
}
int falcon_init_xmac(struct efx_nic *efx)
@@ -281,7 +253,7 @@ int falcon_init_xmac(struct efx_nic *efx)
bool falcon_xaui_link_ok(struct efx_nic *efx)
{
- efx_dword_t reg;
+ efx_oword_t reg;
bool align_done, link_ok = false;
int sync_status;
@@ -289,18 +261,18 @@ bool falcon_xaui_link_ok(struct efx_nic *efx)
return true;
/* Read link status */
- falcon_xmac_readl(efx, ®, XX_CORE_STAT_REG_MAC);
+ falcon_read(efx, ®, XX_CORE_STAT_REG);
- align_done = EFX_DWORD_FIELD(reg, XX_ALIGN_DONE);
- sync_status = EFX_DWORD_FIELD(reg, XX_SYNC_STAT);
+ align_done = EFX_OWORD_FIELD(reg, XX_ALIGN_DONE);
+ sync_status = EFX_OWORD_FIELD(reg, XX_SYNC_STAT);
if (align_done && (sync_status == XX_SYNC_STAT_DECODE_SYNCED))
link_ok = true;
/* Clear link status ready for next read */
- EFX_SET_DWORD_FIELD(reg, XX_COMMA_DET, XX_COMMA_DET_RESET);
- EFX_SET_DWORD_FIELD(reg, XX_CHARERR, XX_CHARERR_RESET);
- EFX_SET_DWORD_FIELD(reg, XX_DISPERR, XX_DISPERR_RESET);
- falcon_xmac_writel(efx, ®, XX_CORE_STAT_REG_MAC);
+ EFX_SET_OWORD_FIELD(reg, XX_COMMA_DET, XX_COMMA_DET_RESET);
+ EFX_SET_OWORD_FIELD(reg, XX_CHARERR, XX_CHARERR_RESET);
+ EFX_SET_OWORD_FIELD(reg, XX_DISPERR, XX_DISPERR_RESET);
+ falcon_write(efx, ®, XX_CORE_STAT_REG);
/* If the link is up, then check the phy side of the xaui link
* (error conditions from the wire side propoagate back through
@@ -321,7 +293,7 @@ bool falcon_xaui_link_ok(struct efx_nic *efx)
static void falcon_reconfigure_xmac_core(struct efx_nic *efx)
{
unsigned int max_frame_len;
- efx_dword_t reg;
+ efx_oword_t reg;
bool rx_fc = !!(efx->flow_control & EFX_FC_RX);
/* Configure MAC - cut-thru mode is hard wired on */
@@ -329,7 +301,7 @@ static void falcon_reconfigure_xmac_core(struct efx_nic *efx)
XM_RX_JUMBO_MODE, 1,
XM_TX_STAT_EN, 1,
XM_RX_STAT_EN, 1);
- falcon_xmac_writel(efx, ®, XM_GLB_CFG_REG_MAC);
+ falcon_write(efx, ®, XM_GLB_CFG_REG);
/* Configure TX */
EFX_POPULATE_DWORD_6(reg,
@@ -339,7 +311,7 @@ static void falcon_reconfigure_xmac_core(struct efx_nic *efx)
XM_TXCRC, 1,
XM_FCNTL, 1,
XM_IPG, 0x3);
- falcon_xmac_writel(efx, ®, XM_TX_CFG_REG_MAC);
+ falcon_write(efx, ®, XM_TX_CFG_REG);
/* Configure RX */
EFX_POPULATE_DWORD_5(reg,
@@ -348,21 +320,21 @@ static void falcon_reconfigure_xmac_core(struct efx_nic *efx)
XM_ACPT_ALL_MCAST, 1,
XM_ACPT_ALL_UCAST, efx->promiscuous,
XM_PASS_CRC_ERR, 1);
- falcon_xmac_writel(efx, ®, XM_RX_CFG_REG_MAC);
+ falcon_write(efx, ®, XM_RX_CFG_REG);
/* Set frame length */
max_frame_len = EFX_MAX_FRAME_LEN(efx->net_dev->mtu);
EFX_POPULATE_DWORD_1(reg, XM_MAX_RX_FRM_SIZE, max_frame_len);
- falcon_xmac_writel(efx, ®, XM_RX_PARAM_REG_MAC);
+ falcon_write(efx, ®, XM_RX_PARAM_REG);
EFX_POPULATE_DWORD_2(reg,
XM_MAX_TX_FRM_SIZE, max_frame_len,
XM_TX_JUMBO_MODE, 1);
- falcon_xmac_writel(efx, ®, XM_TX_PARAM_REG_MAC);
+ falcon_write(efx, ®, XM_TX_PARAM_REG);
EFX_POPULATE_DWORD_2(reg,
XM_PAUSE_TIME, 0xfffe, /* MAX PAUSE TIME */
XM_DIS_FCNTL, !rx_fc);
- falcon_xmac_writel(efx, ®, XM_FC_REG_MAC);
+ falcon_write(efx, ®, XM_FC_REG);
/* Set MAC address */
EFX_POPULATE_DWORD_4(reg,
@@ -370,16 +342,16 @@ static void falcon_reconfigure_xmac_core(struct efx_nic *efx)
XM_ADR_1, efx->net_dev->dev_addr[1],
XM_ADR_2, efx->net_dev->dev_addr[2],
XM_ADR_3, efx->net_dev->dev_addr[3]);
- falcon_xmac_writel(efx, ®, XM_ADR_LO_REG_MAC);
+ falcon_write(efx, ®, XM_ADR_LO_REG);
EFX_POPULATE_DWORD_2(reg,
XM_ADR_4, efx->net_dev->dev_addr[4],
XM_ADR_5, efx->net_dev->dev_addr[5]);
- falcon_xmac_writel(efx, ®, XM_ADR_HI_REG_MAC);
+ falcon_write(efx, ®, XM_ADR_HI_REG);
}
static void falcon_reconfigure_xgxs_core(struct efx_nic *efx)
{
- efx_dword_t reg;
+ efx_oword_t reg;
bool xgxs_loopback = (efx->loopback_mode == LOOPBACK_XGXS);
bool xaui_loopback = (efx->loopback_mode == LOOPBACK_XAUI);
bool xgmii_loopback = (efx->loopback_mode == LOOPBACK_XGMII);
@@ -390,44 +362,44 @@ static void falcon_reconfigure_xgxs_core(struct efx_nic *efx)
bool old_xgmii_loopback, old_xgxs_loopback, old_xaui_loopback;
bool reset_xgxs;
- falcon_xmac_readl(efx, ®, XX_CORE_STAT_REG_MAC);
- old_xgxs_loopback = EFX_DWORD_FIELD(reg, XX_XGXS_LB_EN);
- old_xgmii_loopback = EFX_DWORD_FIELD(reg, XX_XGMII_LB_EN);
+ falcon_read(efx, ®, XX_CORE_STAT_REG);
+ old_xgxs_loopback = EFX_OWORD_FIELD(reg, XX_XGXS_LB_EN);
+ old_xgmii_loopback = EFX_OWORD_FIELD(reg, XX_XGMII_LB_EN);
- falcon_xmac_readl(efx, ®, XX_SD_CTL_REG_MAC);
- old_xaui_loopback = EFX_DWORD_FIELD(reg, XX_LPBKA);
+ falcon_read(efx, ®, XX_SD_CTL_REG);
+ old_xaui_loopback = EFX_OWORD_FIELD(reg, XX_LPBKA);
/* The PHY driver may have turned XAUI off */
reset_xgxs = ((xgxs_loopback != old_xgxs_loopback) ||
(xaui_loopback != old_xaui_loopback) ||
(xgmii_loopback != old_xgmii_loopback));
if (reset_xgxs) {
- falcon_xmac_readl(efx, ®, XX_PWR_RST_REG_MAC);
- EFX_SET_DWORD_FIELD(reg, XX_RSTXGXSTX_EN, 1);
- EFX_SET_DWORD_FIELD(reg, XX_RSTXGXSRX_EN, 1);
- falcon_xmac_writel(efx, ®, XX_PWR_RST_REG_MAC);
+ falcon_read(efx, ®, XX_PWR_RST_REG);
+ EFX_SET_OWORD_FIELD(reg, XX_RSTXGXSTX_EN, 1);
+ EFX_SET_OWORD_FIELD(reg, XX_RSTXGXSRX_EN, 1);
+ falcon_write(efx, ®, XX_PWR_RST_REG);
udelay(1);
- EFX_SET_DWORD_FIELD(reg, XX_RSTXGXSTX_EN, 0);
- EFX_SET_DWORD_FIELD(reg, XX_RSTXGXSRX_EN, 0);
- falcon_xmac_writel(efx, ®, XX_PWR_RST_REG_MAC);
+ EFX_SET_OWORD_FIELD(reg, XX_RSTXGXSTX_EN, 0);
+ EFX_SET_OWORD_FIELD(reg, XX_RSTXGXSRX_EN, 0);
+ falcon_write(efx, ®, XX_PWR_RST_REG);
udelay(1);
}
}
- falcon_xmac_readl(efx, ®, XX_CORE_STAT_REG_MAC);
- EFX_SET_DWORD_FIELD(reg, XX_FORCE_SIG,
+ falcon_read(efx, ®, XX_CORE_STAT_REG);
+ EFX_SET_OWORD_FIELD(reg, XX_FORCE_SIG,
(xgxs_loopback || xaui_loopback) ?
XX_FORCE_SIG_DECODE_FORCED : 0);
- EFX_SET_DWORD_FIELD(reg, XX_XGXS_LB_EN, xgxs_loopback);
- EFX_SET_DWORD_FIELD(reg, XX_XGMII_LB_EN, xgmii_loopback);
- falcon_xmac_writel(efx, ®, XX_CORE_STAT_REG_MAC);
-
- falcon_xmac_readl(efx, ®, XX_SD_CTL_REG_MAC);
- EFX_SET_DWORD_FIELD(reg, XX_LPBKD, xaui_loopback);
- EFX_SET_DWORD_FIELD(reg, XX_LPBKC, xaui_loopback);
- EFX_SET_DWORD_FIELD(reg, XX_LPBKB, xaui_loopback);
- EFX_SET_DWORD_FIELD(reg, XX_LPBKA, xaui_loopback);
- falcon_xmac_writel(efx, ®, XX_SD_CTL_REG_MAC);
+ EFX_SET_OWORD_FIELD(reg, XX_XGXS_LB_EN, xgxs_loopback);
+ EFX_SET_OWORD_FIELD(reg, XX_XGMII_LB_EN, xgmii_loopback);
+ falcon_write(efx, ®, XX_CORE_STAT_REG);
+
+ falcon_read(efx, ®, XX_SD_CTL_REG);
+ EFX_SET_OWORD_FIELD(reg, XX_LPBKD, xaui_loopback);
+ EFX_SET_OWORD_FIELD(reg, XX_LPBKC, xaui_loopback);
+ EFX_SET_OWORD_FIELD(reg, XX_LPBKB, xaui_loopback);
+ EFX_SET_OWORD_FIELD(reg, XX_LPBKA, xaui_loopback);
+ falcon_write(efx, ®, XX_SD_CTL_REG);
}
diff --git a/drivers/net/sfc/mac.h b/drivers/net/sfc/mac.h
index edd07d4..a31571c 100644
--- a/drivers/net/sfc/mac.h
+++ b/drivers/net/sfc/mac.h
@@ -13,10 +13,6 @@
#include "net_driver.h"
-extern void falcon_xmac_writel(struct efx_nic *efx,
- efx_dword_t *value, unsigned int mac_reg);
-extern void falcon_xmac_readl(struct efx_nic *efx,
- efx_dword_t *value, unsigned int mac_reg);
extern int falcon_init_xmac(struct efx_nic *efx);
extern void falcon_reconfigure_xmac(struct efx_nic *efx);
extern void falcon_update_stats_xmac(struct efx_nic *efx);
diff --git a/drivers/net/sfc/sfe4001.c b/drivers/net/sfc/sfe4001.c
index d90fab5..b7005da 100644
--- a/drivers/net/sfc/sfe4001.c
+++ b/drivers/net/sfc/sfe4001.c
@@ -19,6 +19,7 @@
#include "boards.h"
#include "falcon.h"
#include "falcon_hwdefs.h"
+#include "falcon_io.h"
#include "mac.h"
/**************************************************************************
@@ -128,17 +129,17 @@ static int sfe4001_poweron(struct efx_nic *efx)
unsigned int i, j;
int rc;
u8 out;
- efx_dword_t reg;
+ efx_oword_t reg;
/* Ensure that XGXS and XAUI SerDes are held in reset */
- EFX_POPULATE_DWORD_7(reg, XX_PWRDNA_EN, 1,
+ EFX_POPULATE_OWORD_7(reg, XX_PWRDNA_EN, 1,
XX_PWRDNB_EN, 1,
XX_RSTPLLAB_EN, 1,
XX_RESETA_EN, 1,
XX_RESETB_EN, 1,
XX_RSTXGXSRX_EN, 1,
XX_RSTXGXSTX_EN, 1);
- falcon_xmac_writel(efx, ®, XX_PWR_RST_REG_MAC);
+ falcon_write(efx, ®, XX_PWR_RST_REG);
udelay(10);
/* Clear any previous over-temperature alert */
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 35/52] sfc: Remove some unreachable error paths
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (33 preceding siblings ...)
2008-09-01 11:48 ` [PATCH 34/52] sfc: Remove remnants of multi-port abstraction for MAC registers Ben Hutchings
@ 2008-09-01 11:48 ` Ben Hutchings
2008-09-01 11:48 ` [PATCH 36/52] sfc: Cleanup reset code Ben Hutchings
` (16 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:48 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
Some functions return an error code which is always 0. Change their
return types to void and simplify their callers accordingly.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/efx.c | 76 ++++++++++----------------------------------
drivers/net/sfc/efx.h | 2 +-
drivers/net/sfc/ethtool.c | 8 ++--
drivers/net/sfc/falcon.c | 30 ++++-------------
drivers/net/sfc/falcon.h | 6 ++--
drivers/net/sfc/rx.c | 4 +-
drivers/net/sfc/rx.h | 2 +-
drivers/net/sfc/tx.c | 4 +-
drivers/net/sfc/tx.h | 2 +-
9 files changed, 39 insertions(+), 95 deletions(-)
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c
index c41035a..f226dcf 100644
--- a/drivers/net/sfc/efx.c
+++ b/drivers/net/sfc/efx.c
@@ -282,13 +282,13 @@ static int efx_probe_eventq(struct efx_channel *channel)
}
/* Prepare channel's event queue */
-static int efx_init_eventq(struct efx_channel *channel)
+static void efx_init_eventq(struct efx_channel *channel)
{
EFX_LOG(channel->efx, "chan %d init event queue\n", channel->channel);
channel->eventq_read_ptr = 0;
- return falcon_init_eventq(channel);
+ falcon_init_eventq(channel);
}
static void efx_fini_eventq(struct efx_channel *channel)
@@ -354,12 +354,11 @@ static int efx_probe_channel(struct efx_channel *channel)
* to propagate configuration changes (mtu, checksum offload), or
* to clear hardware error conditions
*/
-static int efx_init_channels(struct efx_nic *efx)
+static void efx_init_channels(struct efx_nic *efx)
{
struct efx_tx_queue *tx_queue;
struct efx_rx_queue *rx_queue;
struct efx_channel *channel;
- int rc = 0;
/* Calculate the rx buffer allocation parameters required to
* support the current MTU, including padding for header
@@ -374,36 +373,20 @@ static int efx_init_channels(struct efx_nic *efx)
efx_for_each_channel(channel, efx) {
EFX_LOG(channel->efx, "init chan %d\n", channel->channel);
- rc = efx_init_eventq(channel);
- if (rc)
- goto err;
+ efx_init_eventq(channel);
- efx_for_each_channel_tx_queue(tx_queue, channel) {
- rc = efx_init_tx_queue(tx_queue);
- if (rc)
- goto err;
- }
+ efx_for_each_channel_tx_queue(tx_queue, channel)
+ efx_init_tx_queue(tx_queue);
/* The rx buffer allocation strategy is MTU dependent */
efx_rx_strategy(channel);
- efx_for_each_channel_rx_queue(rx_queue, channel) {
- rc = efx_init_rx_queue(rx_queue);
- if (rc)
- goto err;
- }
+ efx_for_each_channel_rx_queue(rx_queue, channel)
+ efx_init_rx_queue(rx_queue);
WARN_ON(channel->rx_pkt != NULL);
efx_rx_strategy(channel);
}
-
- return 0;
-
- err:
- EFX_ERR(efx, "failed to initialise channel %d\n",
- channel ? channel->channel : -1);
- efx_fini_channels(efx);
- return rc;
}
/* This enables event queue processing and packet transmission.
@@ -1121,24 +1104,16 @@ static void efx_remove_all(struct efx_nic *efx)
}
/* A convinience function to safely flush all the queues */
-int efx_flush_queues(struct efx_nic *efx)
+void efx_flush_queues(struct efx_nic *efx)
{
- int rc;
-
EFX_ASSERT_RESET_SERIALISED(efx);
efx_stop_all(efx);
efx_fini_channels(efx);
- rc = efx_init_channels(efx);
- if (rc) {
- efx_schedule_reset(efx, RESET_TYPE_DISABLE);
- return rc;
- }
+ efx_init_channels(efx);
efx_start_all(efx);
-
- return 0;
}
/**************************************************************************
@@ -1311,7 +1286,6 @@ static int efx_net_open(struct net_device *net_dev)
static int efx_net_stop(struct net_device *net_dev)
{
struct efx_nic *efx = netdev_priv(net_dev);
- int rc;
EFX_LOG(efx, "closing %s on CPU %d\n", net_dev->name,
raw_smp_processor_id());
@@ -1319,9 +1293,7 @@ static int efx_net_stop(struct net_device *net_dev)
/* Stop the device and flush all the channels */
efx_stop_all(efx);
efx_fini_channels(efx);
- rc = efx_init_channels(efx);
- if (rc)
- efx_schedule_reset(efx, RESET_TYPE_DISABLE);
+ efx_init_channels(efx);
return 0;
}
@@ -1404,16 +1376,10 @@ static int efx_change_mtu(struct net_device *net_dev, int new_mtu)
efx_fini_channels(efx);
net_dev->mtu = new_mtu;
- rc = efx_init_channels(efx);
- if (rc)
- goto fail;
+ efx_init_channels(efx);
efx_start_all(efx);
return rc;
-
- fail:
- efx_schedule_reset(efx, RESET_TYPE_DISABLE);
- return rc;
}
static int efx_set_mac_address(struct net_device *net_dev, void *data)
@@ -1588,22 +1554,19 @@ static int efx_reset_up(struct efx_nic *efx, struct ethtool_cmd *ecmd)
{
int rc;
- rc = efx_init_channels(efx);
- if (rc)
- goto fail1;
+ efx_init_channels(efx);
/* Restore MAC and PHY settings. */
rc = falcon_xmac_set_settings(efx, ecmd);
if (rc) {
EFX_ERR(efx, "could not restore PHY settings\n");
- goto fail2;
+ goto fail;
}
return 0;
- fail2:
+ fail:
efx_fini_channels(efx);
- fail1:
return rc;
}
@@ -2023,19 +1986,16 @@ static int efx_pci_probe_main(struct efx_nic *efx)
goto fail5;
}
- rc = efx_init_channels(efx);
- if (rc)
- goto fail6;
+ efx_init_channels(efx);
rc = falcon_init_interrupt(efx);
if (rc)
- goto fail7;
+ goto fail6;
return 0;
- fail7:
- efx_fini_channels(efx);
fail6:
+ efx_fini_channels(efx);
efx_fini_port(efx);
fail5:
fail4:
diff --git a/drivers/net/sfc/efx.h b/drivers/net/sfc/efx.h
index 29a1c58..9a8c283 100644
--- a/drivers/net/sfc/efx.h
+++ b/drivers/net/sfc/efx.h
@@ -33,7 +33,7 @@ extern void efx_schedule_slow_fill(struct efx_rx_queue *rx_queue, int delay);
/* Channels */
extern void efx_process_channel_now(struct efx_channel *channel);
-extern int efx_flush_queues(struct efx_nic *efx);
+extern void efx_flush_queues(struct efx_nic *efx);
/* Ports */
extern void efx_reconfigure_port(struct efx_nic *efx);
diff --git a/drivers/net/sfc/ethtool.c b/drivers/net/sfc/ethtool.c
index 906d18a..7989416 100644
--- a/drivers/net/sfc/ethtool.c
+++ b/drivers/net/sfc/ethtool.c
@@ -503,10 +503,10 @@ static void efx_ethtool_self_test(struct net_device *net_dev,
if (offline) {
/* Stop the kernel from sending packets during the test. */
efx_stop_queue(efx);
- rc = efx_flush_queues(efx);
- if (!rc)
- rc = efx_offline_test(efx, &efx_tests,
- efx->loopback_modes);
+ efx_flush_queues(efx);
+
+ rc = efx_offline_test(efx, &efx_tests,
+ efx->loopback_modes);
efx_wake_queue(efx);
}
diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c
index 96cb5d0..e66d6cf 100644
--- a/drivers/net/sfc/falcon.c
+++ b/drivers/net/sfc/falcon.c
@@ -242,7 +242,7 @@ static struct i2c_algo_bit_data falcon_i2c_bit_operations = {
* falcon_alloc_special_buffer()) in Falcon's buffer table, allowing
* it to be used for event queues, descriptor rings etc.
*/
-static int
+static void
falcon_init_special_buffer(struct efx_nic *efx,
struct efx_special_buffer *buffer)
{
@@ -266,8 +266,6 @@ falcon_init_special_buffer(struct efx_nic *efx,
BUF_OWNER_ID_FBUF, 0);
falcon_write_sram(efx, &buf_desc, index);
}
-
- return 0;
}
/* Unmaps a buffer from Falcon and clears the buffer table entries */
@@ -449,16 +447,13 @@ int falcon_probe_tx(struct efx_tx_queue *tx_queue)
sizeof(efx_qword_t));
}
-int falcon_init_tx(struct efx_tx_queue *tx_queue)
+void falcon_init_tx(struct efx_tx_queue *tx_queue)
{
efx_oword_t tx_desc_ptr;
struct efx_nic *efx = tx_queue->efx;
- int rc;
/* Pin TX descriptor ring */
- rc = falcon_init_special_buffer(efx, &tx_queue->txd);
- if (rc)
- return rc;
+ falcon_init_special_buffer(efx, &tx_queue->txd);
/* Push TX descriptor ring to card */
EFX_POPULATE_OWORD_10(tx_desc_ptr,
@@ -495,8 +490,6 @@ int falcon_init_tx(struct efx_tx_queue *tx_queue)
set_bit_le(tx_queue->queue, (void *)®);
falcon_write(efx, ®, TX_CHKSM_CFG_REG_KER_A1);
}
-
- return 0;
}
static int falcon_flush_tx_queue(struct efx_tx_queue *tx_queue)
@@ -639,11 +632,10 @@ int falcon_probe_rx(struct efx_rx_queue *rx_queue)
sizeof(efx_qword_t));
}
-int falcon_init_rx(struct efx_rx_queue *rx_queue)
+void falcon_init_rx(struct efx_rx_queue *rx_queue)
{
efx_oword_t rx_desc_ptr;
struct efx_nic *efx = rx_queue->efx;
- int rc;
bool is_b0 = falcon_rev(efx) >= FALCON_REV_B0;
bool iscsi_digest_en = is_b0;
@@ -652,9 +644,7 @@ int falcon_init_rx(struct efx_rx_queue *rx_queue)
rx_queue->rxd.index + rx_queue->rxd.entries - 1);
/* Pin RX descriptor ring */
- rc = falcon_init_special_buffer(efx, &rx_queue->rxd);
- if (rc)
- return rc;
+ falcon_init_special_buffer(efx, &rx_queue->rxd);
/* Push RX descriptor ring to card */
EFX_POPULATE_OWORD_10(rx_desc_ptr,
@@ -671,7 +661,6 @@ int falcon_init_rx(struct efx_rx_queue *rx_queue)
RX_DESCQ_EN, 1);
falcon_write_table(efx, &rx_desc_ptr, efx->type->rxd_ptr_tbl_base,
rx_queue->queue);
- return 0;
}
static int falcon_flush_rx_queue(struct efx_rx_queue *rx_queue)
@@ -1205,20 +1194,17 @@ int falcon_probe_eventq(struct efx_channel *channel)
return falcon_alloc_special_buffer(efx, &channel->eventq, evq_size);
}
-int falcon_init_eventq(struct efx_channel *channel)
+void falcon_init_eventq(struct efx_channel *channel)
{
efx_oword_t evq_ptr;
struct efx_nic *efx = channel->efx;
- int rc;
EFX_LOG(efx, "channel %d event queue in special buffers %d-%d\n",
channel->channel, channel->eventq.index,
channel->eventq.index + channel->eventq.entries - 1);
/* Pin event queue buffer */
- rc = falcon_init_special_buffer(efx, &channel->eventq);
- if (rc)
- return rc;
+ falcon_init_special_buffer(efx, &channel->eventq);
/* Fill event queue with all ones (i.e. empty events) */
memset(channel->eventq.addr, 0xff, channel->eventq.len);
@@ -1232,8 +1218,6 @@ int falcon_init_eventq(struct efx_channel *channel)
channel->channel);
falcon_set_int_moderation(channel);
-
- return 0;
}
void falcon_fini_eventq(struct efx_channel *channel)
diff --git a/drivers/net/sfc/falcon.h b/drivers/net/sfc/falcon.h
index 4cf05d0..41b388b 100644
--- a/drivers/net/sfc/falcon.h
+++ b/drivers/net/sfc/falcon.h
@@ -40,21 +40,21 @@ extern struct efx_nic_type falcon_b_nic_type;
/* TX data path */
extern int falcon_probe_tx(struct efx_tx_queue *tx_queue);
-extern int falcon_init_tx(struct efx_tx_queue *tx_queue);
+extern void falcon_init_tx(struct efx_tx_queue *tx_queue);
extern void falcon_fini_tx(struct efx_tx_queue *tx_queue);
extern void falcon_remove_tx(struct efx_tx_queue *tx_queue);
extern void falcon_push_buffers(struct efx_tx_queue *tx_queue);
/* RX data path */
extern int falcon_probe_rx(struct efx_rx_queue *rx_queue);
-extern int falcon_init_rx(struct efx_rx_queue *rx_queue);
+extern void falcon_init_rx(struct efx_rx_queue *rx_queue);
extern void falcon_fini_rx(struct efx_rx_queue *rx_queue);
extern void falcon_remove_rx(struct efx_rx_queue *rx_queue);
extern void falcon_notify_rx_desc(struct efx_rx_queue *rx_queue);
/* Event data path */
extern int falcon_probe_eventq(struct efx_channel *channel);
-extern int falcon_init_eventq(struct efx_channel *channel);
+extern void falcon_init_eventq(struct efx_channel *channel);
extern void falcon_fini_eventq(struct efx_channel *channel);
extern void falcon_remove_eventq(struct efx_channel *channel);
extern int falcon_process_eventq(struct efx_channel *channel, int rx_quota);
diff --git a/drivers/net/sfc/rx.c b/drivers/net/sfc/rx.c
index 7d2dc20..0f805da 100644
--- a/drivers/net/sfc/rx.c
+++ b/drivers/net/sfc/rx.c
@@ -800,7 +800,7 @@ int efx_probe_rx_queue(struct efx_rx_queue *rx_queue)
return rc;
}
-int efx_init_rx_queue(struct efx_rx_queue *rx_queue)
+void efx_init_rx_queue(struct efx_rx_queue *rx_queue)
{
struct efx_nic *efx = rx_queue->efx;
unsigned int max_fill, trigger, limit;
@@ -824,7 +824,7 @@ int efx_init_rx_queue(struct efx_rx_queue *rx_queue)
rx_queue->fast_fill_limit = limit;
/* Set up RX descriptor ring */
- return falcon_init_rx(rx_queue);
+ falcon_init_rx(rx_queue);
}
void efx_fini_rx_queue(struct efx_rx_queue *rx_queue)
diff --git a/drivers/net/sfc/rx.h b/drivers/net/sfc/rx.h
index 187b110..0e88a9d 100644
--- a/drivers/net/sfc/rx.h
+++ b/drivers/net/sfc/rx.h
@@ -14,7 +14,7 @@
int efx_probe_rx_queue(struct efx_rx_queue *rx_queue);
void efx_remove_rx_queue(struct efx_rx_queue *rx_queue);
-int efx_init_rx_queue(struct efx_rx_queue *rx_queue);
+void efx_init_rx_queue(struct efx_rx_queue *rx_queue);
void efx_fini_rx_queue(struct efx_rx_queue *rx_queue);
int efx_lro_init(struct net_lro_mgr *lro_mgr, struct efx_nic *efx);
diff --git a/drivers/net/sfc/tx.c b/drivers/net/sfc/tx.c
index a3a3edd..cdee7c2 100644
--- a/drivers/net/sfc/tx.c
+++ b/drivers/net/sfc/tx.c
@@ -443,7 +443,7 @@ int efx_probe_tx_queue(struct efx_tx_queue *tx_queue)
return rc;
}
-int efx_init_tx_queue(struct efx_tx_queue *tx_queue)
+void efx_init_tx_queue(struct efx_tx_queue *tx_queue)
{
EFX_LOG(tx_queue->efx, "initialising TX queue %d\n", tx_queue->queue);
@@ -454,7 +454,7 @@ int efx_init_tx_queue(struct efx_tx_queue *tx_queue)
BUG_ON(tx_queue->stopped);
/* Set up TX descriptor ring */
- return falcon_init_tx(tx_queue);
+ falcon_init_tx(tx_queue);
}
void efx_release_tx_buffers(struct efx_tx_queue *tx_queue)
diff --git a/drivers/net/sfc/tx.h b/drivers/net/sfc/tx.h
index 1526a73..5e1cc23 100644
--- a/drivers/net/sfc/tx.h
+++ b/drivers/net/sfc/tx.h
@@ -15,7 +15,7 @@
int efx_probe_tx_queue(struct efx_tx_queue *tx_queue);
void efx_remove_tx_queue(struct efx_tx_queue *tx_queue);
-int efx_init_tx_queue(struct efx_tx_queue *tx_queue);
+void efx_init_tx_queue(struct efx_tx_queue *tx_queue);
void efx_fini_tx_queue(struct efx_tx_queue *tx_queue);
int efx_hard_start_xmit(struct sk_buff *skb, struct net_device *net_dev);
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 36/52] sfc: Cleanup reset code
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (34 preceding siblings ...)
2008-09-01 11:48 ` [PATCH 35/52] sfc: Remove some unreachable error paths Ben Hutchings
@ 2008-09-01 11:48 ` Ben Hutchings
2008-09-01 11:48 ` [PATCH 37/52] sfc: Rework the bitfield header so that we can identify fields by bit number Ben Hutchings
` (15 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:48 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
Move more code from efx_reset() into efx_reset_down() and efx_reset_up().
Stop propagating MAC/PHY setting failures from efx_reset_down() and
efx_reset_up() as these should not be fatal.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/efx.c | 98 ++++++++++++++++++++----------------------------
1 files changed, 41 insertions(+), 57 deletions(-)
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c
index f226dcf..f34dbf2 100644
--- a/drivers/net/sfc/efx.c
+++ b/drivers/net/sfc/efx.c
@@ -1527,46 +1527,58 @@ static void efx_unregister_netdev(struct efx_nic *efx)
*
**************************************************************************/
-/* The final hardware and software finalisation before reset. */
-static int efx_reset_down(struct efx_nic *efx, struct ethtool_cmd *ecmd)
+/* Tears down the entire software state and most of the hardware state
+ * before reset. */
+static void efx_reset_down(struct efx_nic *efx, struct ethtool_cmd *ecmd)
{
int rc;
EFX_ASSERT_RESET_SERIALISED(efx);
+ /* The net_dev->get_stats handler is quite slow, and will fail
+ * if a fetch is pending over reset. Serialise against it. */
+ spin_lock(&efx->stats_lock);
+ spin_unlock(&efx->stats_lock);
+
+ efx_stop_all(efx);
+ mutex_lock(&efx->mac_lock);
+
rc = falcon_xmac_get_settings(efx, ecmd);
- if (rc) {
+ if (rc)
EFX_ERR(efx, "could not back up PHY settings\n");
- goto fail;
- }
efx_fini_channels(efx);
- return 0;
-
- fail:
- return rc;
}
-/* The first part of software initialisation after a hardware reset
- * This function does not handle serialisation with the kernel, it
- * assumes the caller has done this */
-static int efx_reset_up(struct efx_nic *efx, struct ethtool_cmd *ecmd)
+/* This function will always ensure that the locks acquired in
+ * efx_reset_down() are released. A failure return code indicates
+ * that we were unable to reinitialise the hardware, and the
+ * driver should be disabled. If ok is false, then the rx and tx
+ * engines are not restarted, pending a RESET_DISABLE. */
+static int efx_reset_up(struct efx_nic *efx, struct ethtool_cmd *ecmd,
+ bool ok)
{
int rc;
- efx_init_channels(efx);
+ EFX_ASSERT_RESET_SERIALISED(efx);
- /* Restore MAC and PHY settings. */
- rc = falcon_xmac_set_settings(efx, ecmd);
+ rc = falcon_init_nic(efx);
if (rc) {
- EFX_ERR(efx, "could not restore PHY settings\n");
- goto fail;
+ EFX_ERR(efx, "failed to initialise NIC\n");
+ ok = false;
}
- return 0;
+ if (ok) {
+ efx_init_channels(efx);
- fail:
- efx_fini_channels(efx);
+ if (falcon_xmac_set_settings(efx, ecmd))
+ EFX_ERR(efx, "could not restore PHY settings\n");
+ }
+
+ mutex_unlock(&efx->mac_lock);
+
+ if (ok)
+ efx_start_all(efx);
return rc;
}
@@ -1598,22 +1610,12 @@ static int efx_reset(struct efx_nic *efx)
efx->state = STATE_RESETTING;
EFX_INFO(efx, "resetting (%d)\n", method);
- /* The net_dev->get_stats handler is quite slow, and will fail
- * if a fetch is pending over reset. Serialise against it. */
- spin_lock(&efx->stats_lock);
- spin_unlock(&efx->stats_lock);
-
- efx_stop_all(efx);
- mutex_lock(&efx->mac_lock);
-
- rc = efx_reset_down(efx, &ecmd);
- if (rc)
- goto fail1;
+ efx_reset_down(efx, &ecmd);
rc = falcon_reset_hw(efx, method);
if (rc) {
EFX_ERR(efx, "failed to reset hardware\n");
- goto fail2;
+ goto fail;
}
/* Allow resets to be rescheduled. */
@@ -1625,46 +1627,28 @@ static int efx_reset(struct efx_nic *efx)
* can respond to requests. */
pci_set_master(efx->pci_dev);
- /* Reinitialise device. This is appropriate in the RESET_TYPE_DISABLE
- * case so the driver can talk to external SRAM */
- rc = falcon_init_nic(efx);
- if (rc) {
- EFX_ERR(efx, "failed to initialise NIC\n");
- goto fail3;
- }
-
/* Leave device stopped if necessary */
if (method == RESET_TYPE_DISABLE) {
- /* Reinitialise the device anyway so the driver unload sequence
- * can talk to the external SRAM */
- falcon_init_nic(efx);
rc = -EIO;
- goto fail4;
+ goto fail;
}
- rc = efx_reset_up(efx, &ecmd);
+ rc = efx_reset_up(efx, &ecmd, true);
if (rc)
- goto fail5;
+ goto disable;
- mutex_unlock(&efx->mac_lock);
EFX_LOG(efx, "reset complete\n");
-
efx->state = STATE_RUNNING;
- efx_start_all(efx);
-
unlock_rtnl:
rtnl_unlock();
return 0;
- fail5:
- fail4:
- fail3:
- fail2:
- fail1:
+ fail:
+ efx_reset_up(efx, &ecmd, false);
+ disable:
EFX_ERR(efx, "has been disabled\n");
efx->state = STATE_DISABLED;
- mutex_unlock(&efx->mac_lock);
rtnl_unlock();
efx_unregister_netdev(efx);
efx_fini_port(efx);
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 37/52] sfc: Rework the bitfield header so that we can identify fields by bit number
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (35 preceding siblings ...)
2008-09-01 11:48 ` [PATCH 36/52] sfc: Cleanup reset code Ben Hutchings
@ 2008-09-01 11:48 ` Ben Hutchings
2008-09-01 11:49 ` [PATCH 38/52] sfc: Extend self-tests Ben Hutchings
` (14 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:48 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
This will support register self-tests.
From: Steve Hodgson <shodgson@solarflare.com>
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/bitfield.h | 159 +++++++++++++++++++++++----------------
drivers/net/sfc/falcon_hwdefs.h | 4 +-
2 files changed, 95 insertions(+), 68 deletions(-)
diff --git a/drivers/net/sfc/bitfield.h b/drivers/net/sfc/bitfield.h
index 2c79d27..b757a39 100644
--- a/drivers/net/sfc/bitfield.h
+++ b/drivers/net/sfc/bitfield.h
@@ -52,9 +52,9 @@
*
* The maximum width mask that can be generated is 64 bits.
*/
-#define EFX_MASK64(field) \
- (EFX_WIDTH(field) == 64 ? ~((u64) 0) : \
- (((((u64) 1) << EFX_WIDTH(field))) - 1))
+#define EFX_MASK64(width) \
+ ((width) == 64 ? ~((u64) 0) : \
+ (((((u64) 1) << (width))) - 1))
/* Mask equal in width to the specified field.
*
@@ -63,9 +63,9 @@
* The maximum width mask that can be generated is 32 bits. Use
* EFX_MASK64 for higher width fields.
*/
-#define EFX_MASK32(field) \
- (EFX_WIDTH(field) == 32 ? ~((u32) 0) : \
- (((((u32) 1) << EFX_WIDTH(field))) - 1))
+#define EFX_MASK32(width) \
+ ((width) == 32 ? ~((u32) 0) : \
+ (((((u32) 1) << (width))) - 1))
/* A doubleword (i.e. 4 byte) datatype - little-endian in HW */
typedef union efx_dword {
@@ -138,44 +138,49 @@ typedef union efx_oword {
EFX_EXTRACT_NATIVE(le32_to_cpu(element), min, max, low, high)
#define EFX_EXTRACT_OWORD64(oword, low, high) \
- (EFX_EXTRACT64((oword).u64[0], 0, 63, low, high) | \
- EFX_EXTRACT64((oword).u64[1], 64, 127, low, high))
+ ((EFX_EXTRACT64((oword).u64[0], 0, 63, low, high) | \
+ EFX_EXTRACT64((oword).u64[1], 64, 127, low, high)) & \
+ EFX_MASK64(high + 1 - low))
#define EFX_EXTRACT_QWORD64(qword, low, high) \
- EFX_EXTRACT64((qword).u64[0], 0, 63, low, high)
+ (EFX_EXTRACT64((qword).u64[0], 0, 63, low, high) & \
+ EFX_MASK64(high + 1 - low))
#define EFX_EXTRACT_OWORD32(oword, low, high) \
- (EFX_EXTRACT32((oword).u32[0], 0, 31, low, high) | \
- EFX_EXTRACT32((oword).u32[1], 32, 63, low, high) | \
- EFX_EXTRACT32((oword).u32[2], 64, 95, low, high) | \
- EFX_EXTRACT32((oword).u32[3], 96, 127, low, high))
+ ((EFX_EXTRACT32((oword).u32[0], 0, 31, low, high) | \
+ EFX_EXTRACT32((oword).u32[1], 32, 63, low, high) | \
+ EFX_EXTRACT32((oword).u32[2], 64, 95, low, high) | \
+ EFX_EXTRACT32((oword).u32[3], 96, 127, low, high)) & \
+ EFX_MASK32(high + 1 - low))
#define EFX_EXTRACT_QWORD32(qword, low, high) \
- (EFX_EXTRACT32((qword).u32[0], 0, 31, low, high) | \
- EFX_EXTRACT32((qword).u32[1], 32, 63, low, high))
+ ((EFX_EXTRACT32((qword).u32[0], 0, 31, low, high) | \
+ EFX_EXTRACT32((qword).u32[1], 32, 63, low, high)) & \
+ EFX_MASK32(high + 1 - low))
-#define EFX_EXTRACT_DWORD(dword, low, high) \
- EFX_EXTRACT32((dword).u32[0], 0, 31, low, high)
+#define EFX_EXTRACT_DWORD(dword, low, high) \
+ (EFX_EXTRACT32((dword).u32[0], 0, 31, low, high) & \
+ EFX_MASK32(high + 1 - low))
-#define EFX_OWORD_FIELD64(oword, field) \
- (EFX_EXTRACT_OWORD64(oword, EFX_LOW_BIT(field), EFX_HIGH_BIT(field)) \
- & EFX_MASK64(field))
+#define EFX_OWORD_FIELD64(oword, field) \
+ EFX_EXTRACT_OWORD64(oword, EFX_LOW_BIT(field), \
+ EFX_HIGH_BIT(field))
-#define EFX_QWORD_FIELD64(qword, field) \
- (EFX_EXTRACT_QWORD64(qword, EFX_LOW_BIT(field), EFX_HIGH_BIT(field)) \
- & EFX_MASK64(field))
+#define EFX_QWORD_FIELD64(qword, field) \
+ EFX_EXTRACT_QWORD64(qword, EFX_LOW_BIT(field), \
+ EFX_HIGH_BIT(field))
-#define EFX_OWORD_FIELD32(oword, field) \
- (EFX_EXTRACT_OWORD32(oword, EFX_LOW_BIT(field), EFX_HIGH_BIT(field)) \
- & EFX_MASK32(field))
+#define EFX_OWORD_FIELD32(oword, field) \
+ EFX_EXTRACT_OWORD32(oword, EFX_LOW_BIT(field), \
+ EFX_HIGH_BIT(field))
-#define EFX_QWORD_FIELD32(qword, field) \
- (EFX_EXTRACT_QWORD32(qword, EFX_LOW_BIT(field), EFX_HIGH_BIT(field)) \
- & EFX_MASK32(field))
+#define EFX_QWORD_FIELD32(qword, field) \
+ EFX_EXTRACT_QWORD32(qword, EFX_LOW_BIT(field), \
+ EFX_HIGH_BIT(field))
-#define EFX_DWORD_FIELD(dword, field) \
- (EFX_EXTRACT_DWORD(dword, EFX_LOW_BIT(field), EFX_HIGH_BIT(field)) \
- & EFX_MASK32(field))
+#define EFX_DWORD_FIELD(dword, field) \
+ EFX_EXTRACT_DWORD(dword, EFX_LOW_BIT(field), \
+ EFX_HIGH_BIT(field))
#define EFX_OWORD_IS_ZERO64(oword) \
(((oword).u64[0] | (oword).u64[1]) == (__force __le64) 0)
@@ -417,63 +422,85 @@ typedef union efx_oword {
(oword).u64[1] = ~((oword).u64[1]); \
} while (0)
-#define EFX_INSERT_FIELD64(...) \
- cpu_to_le64(EFX_INSERT_FIELD_NATIVE(__VA_ARGS__))
+#define EFX_INSERT64(min, max, low, high, value) \
+ cpu_to_le64(EFX_INSERT_NATIVE(min, max, low, high, value))
-#define EFX_INSERT_FIELD32(...) \
- cpu_to_le32(EFX_INSERT_FIELD_NATIVE(__VA_ARGS__))
+#define EFX_INSERT32(min, max, low, high, value) \
+ cpu_to_le32(EFX_INSERT_NATIVE(min, max, low, high, value))
-#define EFX_INPLACE_MASK64(min, max, field) \
- EFX_INSERT_FIELD64(min, max, field, EFX_MASK64(field))
+#define EFX_INPLACE_MASK64(min, max, low, high) \
+ EFX_INSERT64(min, max, low, high, EFX_MASK64(high + 1 - low))
-#define EFX_INPLACE_MASK32(min, max, field) \
- EFX_INSERT_FIELD32(min, max, field, EFX_MASK32(field))
+#define EFX_INPLACE_MASK32(min, max, low, high) \
+ EFX_INSERT32(min, max, low, high, EFX_MASK32(high + 1 - low))
-#define EFX_SET_OWORD_FIELD64(oword, field, value) do { \
+#define EFX_SET_OWORD64(oword, low, high, value) do { \
(oword).u64[0] = (((oword).u64[0] \
- & ~EFX_INPLACE_MASK64(0, 63, field)) \
- | EFX_INSERT_FIELD64(0, 63, field, value)); \
+ & ~EFX_INPLACE_MASK64(0, 63, low, high)) \
+ | EFX_INSERT64(0, 63, low, high, value)); \
(oword).u64[1] = (((oword).u64[1] \
- & ~EFX_INPLACE_MASK64(64, 127, field)) \
- | EFX_INSERT_FIELD64(64, 127, field, value)); \
+ & ~EFX_INPLACE_MASK64(64, 127, low, high)) \
+ | EFX_INSERT64(64, 127, low, high, value)); \
} while (0)
-#define EFX_SET_QWORD_FIELD64(qword, field, value) do { \
+#define EFX_SET_QWORD64(qword, low, high, value) do { \
(qword).u64[0] = (((qword).u64[0] \
- & ~EFX_INPLACE_MASK64(0, 63, field)) \
- | EFX_INSERT_FIELD64(0, 63, field, value)); \
+ & ~EFX_INPLACE_MASK64(0, 63, low, high)) \
+ | EFX_INSERT64(0, 63, low, high, value)); \
} while (0)
-#define EFX_SET_OWORD_FIELD32(oword, field, value) do { \
+#define EFX_SET_OWORD32(oword, low, high, value) do { \
(oword).u32[0] = (((oword).u32[0] \
- & ~EFX_INPLACE_MASK32(0, 31, field)) \
- | EFX_INSERT_FIELD32(0, 31, field, value)); \
+ & ~EFX_INPLACE_MASK32(0, 31, low, high)) \
+ | EFX_INSERT32(0, 31, low, high, value)); \
(oword).u32[1] = (((oword).u32[1] \
- & ~EFX_INPLACE_MASK32(32, 63, field)) \
- | EFX_INSERT_FIELD32(32, 63, field, value)); \
+ & ~EFX_INPLACE_MASK32(32, 63, low, high)) \
+ | EFX_INSERT32(32, 63, low, high, value)); \
(oword).u32[2] = (((oword).u32[2] \
- & ~EFX_INPLACE_MASK32(64, 95, field)) \
- | EFX_INSERT_FIELD32(64, 95, field, value)); \
+ & ~EFX_INPLACE_MASK32(64, 95, low, high)) \
+ | EFX_INSERT32(64, 95, low, high, value)); \
(oword).u32[3] = (((oword).u32[3] \
- & ~EFX_INPLACE_MASK32(96, 127, field)) \
- | EFX_INSERT_FIELD32(96, 127, field, value)); \
+ & ~EFX_INPLACE_MASK32(96, 127, low, high)) \
+ | EFX_INSERT32(96, 127, low, high, value)); \
} while (0)
-#define EFX_SET_QWORD_FIELD32(qword, field, value) do { \
+#define EFX_SET_QWORD32(qword, low, high, value) do { \
(qword).u32[0] = (((qword).u32[0] \
- & ~EFX_INPLACE_MASK32(0, 31, field)) \
- | EFX_INSERT_FIELD32(0, 31, field, value)); \
+ & ~EFX_INPLACE_MASK32(0, 31, low, high)) \
+ | EFX_INSERT32(0, 31, low, high, value)); \
(qword).u32[1] = (((qword).u32[1] \
- & ~EFX_INPLACE_MASK32(32, 63, field)) \
- | EFX_INSERT_FIELD32(32, 63, field, value)); \
+ & ~EFX_INPLACE_MASK32(32, 63, low, high)) \
+ | EFX_INSERT32(32, 63, low, high, value)); \
} while (0)
-#define EFX_SET_DWORD_FIELD(dword, field, value) do { \
- (dword).u32[0] = (((dword).u32[0] \
- & ~EFX_INPLACE_MASK32(0, 31, field)) \
- | EFX_INSERT_FIELD32(0, 31, field, value)); \
+#define EFX_SET_DWORD32(dword, low, high, value) do { \
+ (dword).u32[0] = (((dword).u32[0] \
+ & ~EFX_INPLACE_MASK32(0, 31, low, high)) \
+ | EFX_INSERT32(0, 31, low, high, value)); \
} while (0)
+#define EFX_SET_OWORD_FIELD64(oword, field, value) \
+ EFX_SET_OWORD64(oword, EFX_LOW_BIT(field), \
+ EFX_HIGH_BIT(field), value)
+
+#define EFX_SET_QWORD_FIELD64(qword, field, value) \
+ EFX_SET_QWORD64(qword, EFX_LOW_BIT(field), \
+ EFX_HIGH_BIT(field), value)
+
+#define EFX_SET_OWORD_FIELD32(oword, field, value) \
+ EFX_SET_OWORD32(oword, EFX_LOW_BIT(field), \
+ EFX_HIGH_BIT(field), value)
+
+#define EFX_SET_QWORD_FIELD32(qword, field, value) \
+ EFX_SET_QWORD32(qword, EFX_LOW_BIT(field), \
+ EFX_HIGH_BIT(field), value)
+
+#define EFX_SET_DWORD_FIELD(dword, field, value) \
+ EFX_SET_DWORD32(dword, EFX_LOW_BIT(field), \
+ EFX_HIGH_BIT(field), value)
+
+
+
#if BITS_PER_LONG == 64
#define EFX_SET_OWORD_FIELD EFX_SET_OWORD_FIELD64
#define EFX_SET_QWORD_FIELD EFX_SET_QWORD_FIELD64
diff --git a/drivers/net/sfc/falcon_hwdefs.h b/drivers/net/sfc/falcon_hwdefs.h
index 7c784f7..a3260df 100644
--- a/drivers/net/sfc/falcon_hwdefs.h
+++ b/drivers/net/sfc/falcon_hwdefs.h
@@ -1147,8 +1147,8 @@ struct falcon_nvconfig_board_v3 {
#define SPI_DEV_TYPE_ERASE_SIZE_WIDTH 5
#define SPI_DEV_TYPE_BLOCK_SIZE_LBN 24
#define SPI_DEV_TYPE_BLOCK_SIZE_WIDTH 5
-#define SPI_DEV_TYPE_FIELD(type, field) \
- (((type) >> EFX_LOW_BIT(field)) & EFX_MASK32(field))
+#define SPI_DEV_TYPE_FIELD(type, field) \
+ (((type) >> EFX_LOW_BIT(field)) & EFX_MASK32(EFX_WIDTH(field)))
#define NVCONFIG_BASE 0x300
#define NVCONFIG_BOARD_MAGIC_NUM 0xFA1C
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 38/52] sfc: Extend self-tests
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (36 preceding siblings ...)
2008-09-01 11:48 ` [PATCH 37/52] sfc: Rework the bitfield header so that we can identify fields by bit number Ben Hutchings
@ 2008-09-01 11:49 ` Ben Hutchings
2008-09-01 11:49 ` [PATCH 39/52] sfc: Remove the STATE_RESETTING flag Ben Hutchings
` (13 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:49 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
Include PMA/PMD in loopback self-tests as intended.
Add NVRAM checksum validation and include it in self-tests.
Add register self-tests.
Run PHY self-tests where available.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/bitfield.h | 19 +++-
drivers/net/sfc/efx.c | 20 ++-
drivers/net/sfc/efx.h | 6 +
drivers/net/sfc/ethtool.c | 22 ++--
drivers/net/sfc/falcon.c | 198 ++++++++++++++++++++++++----
drivers/net/sfc/falcon.h | 6 +
drivers/net/sfc/falcon_hwdefs.h | 4 +-
drivers/net/sfc/falcon_xmac.c | 14 +--
drivers/net/sfc/net_driver.h | 16 ++-
drivers/net/sfc/selftest.c | 277 ++++++++++++++++++++++++---------------
drivers/net/sfc/selftest.h | 9 +-
drivers/net/sfc/tenxpress.c | 22 +--
12 files changed, 429 insertions(+), 184 deletions(-)
diff --git a/drivers/net/sfc/bitfield.h b/drivers/net/sfc/bitfield.h
index b757a39..d95c218 100644
--- a/drivers/net/sfc/bitfield.h
+++ b/drivers/net/sfc/bitfield.h
@@ -416,12 +416,23 @@ typedef union efx_oword {
* for read-modify-write operations.
*
*/
-
#define EFX_INVERT_OWORD(oword) do { \
(oword).u64[0] = ~((oword).u64[0]); \
(oword).u64[1] = ~((oword).u64[1]); \
} while (0)
+#define EFX_AND_OWORD(oword, from, mask) \
+ do { \
+ (oword).u64[0] = (from).u64[0] & (mask).u64[0]; \
+ (oword).u64[1] = (from).u64[1] & (mask).u64[1]; \
+ } while (0)
+
+#define EFX_OR_OWORD(oword, from, mask) \
+ do { \
+ (oword).u64[0] = (from).u64[0] | (mask).u64[0]; \
+ (oword).u64[1] = (from).u64[1] | (mask).u64[1]; \
+ } while (0)
+
#define EFX_INSERT64(min, max, low, high, value) \
cpu_to_le64(EFX_INSERT_NATIVE(min, max, low, high, value))
@@ -529,4 +540,10 @@ typedef union efx_oword {
#define EFX_DMA_TYPE_WIDTH(width) \
(((width) < DMA_ADDR_T_WIDTH) ? (width) : DMA_ADDR_T_WIDTH)
+
+/* Static initialiser */
+#define EFX_OWORD32(a, b, c, d) \
+ { .u32 = { __constant_cpu_to_le32(a), __constant_cpu_to_le32(b), \
+ __constant_cpu_to_le32(c), __constant_cpu_to_le32(d) } }
+
#endif /* EFX_BITFIELD_H */
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c
index f34dbf2..e1e2f80 100644
--- a/drivers/net/sfc/efx.c
+++ b/drivers/net/sfc/efx.c
@@ -508,6 +508,11 @@ static void efx_link_status_changed(struct efx_nic *efx)
if (!netif_running(efx->net_dev))
return;
+ if (efx->port_inhibited) {
+ netif_carrier_off(efx->net_dev);
+ return;
+ }
+
if (efx->link_up != netif_carrier_ok(efx->net_dev)) {
efx->n_link_state_changes++;
@@ -549,7 +554,7 @@ static void efx_link_status_changed(struct efx_nic *efx)
/* This call reinitialises the MAC to pick up new PHY settings. The
* caller must hold the mac_lock */
-static void __efx_reconfigure_port(struct efx_nic *efx)
+void __efx_reconfigure_port(struct efx_nic *efx)
{
WARN_ON(!mutex_is_locked(&efx->mac_lock));
@@ -634,6 +639,7 @@ static int efx_init_port(struct efx_nic *efx)
return rc;
efx->port_initialized = true;
+ efx->stats_enabled = true;
/* Reconfigure port to program MAC registers */
falcon_reconfigure_xmac(efx);
@@ -1311,7 +1317,7 @@ static struct net_device_stats *efx_net_stats(struct net_device *net_dev)
*/
if (!spin_trylock(&efx->stats_lock))
return stats;
- if (efx->state == STATE_RUNNING) {
+ if (efx->stats_enabled) {
falcon_update_stats_xmac(efx);
falcon_update_nic_stats(efx);
}
@@ -1529,7 +1535,7 @@ static void efx_unregister_netdev(struct efx_nic *efx)
/* Tears down the entire software state and most of the hardware state
* before reset. */
-static void efx_reset_down(struct efx_nic *efx, struct ethtool_cmd *ecmd)
+void efx_reset_down(struct efx_nic *efx, struct ethtool_cmd *ecmd)
{
int rc;
@@ -1538,6 +1544,7 @@ static void efx_reset_down(struct efx_nic *efx, struct ethtool_cmd *ecmd)
/* The net_dev->get_stats handler is quite slow, and will fail
* if a fetch is pending over reset. Serialise against it. */
spin_lock(&efx->stats_lock);
+ efx->stats_enabled = false;
spin_unlock(&efx->stats_lock);
efx_stop_all(efx);
@@ -1555,8 +1562,7 @@ static void efx_reset_down(struct efx_nic *efx, struct ethtool_cmd *ecmd)
* that we were unable to reinitialise the hardware, and the
* driver should be disabled. If ok is false, then the rx and tx
* engines are not restarted, pending a RESET_DISABLE. */
-static int efx_reset_up(struct efx_nic *efx, struct ethtool_cmd *ecmd,
- bool ok)
+int efx_reset_up(struct efx_nic *efx, struct ethtool_cmd *ecmd, bool ok)
{
int rc;
@@ -1577,8 +1583,10 @@ static int efx_reset_up(struct efx_nic *efx, struct ethtool_cmd *ecmd,
mutex_unlock(&efx->mac_lock);
- if (ok)
+ if (ok) {
efx_start_all(efx);
+ efx->stats_enabled = true;
+ }
return rc;
}
diff --git a/drivers/net/sfc/efx.h b/drivers/net/sfc/efx.h
index 9a8c283..d02937b 100644
--- a/drivers/net/sfc/efx.h
+++ b/drivers/net/sfc/efx.h
@@ -37,6 +37,12 @@ extern void efx_flush_queues(struct efx_nic *efx);
/* Ports */
extern void efx_reconfigure_port(struct efx_nic *efx);
+extern void __efx_reconfigure_port(struct efx_nic *efx);
+
+/* Reset handling */
+extern void efx_reset_down(struct efx_nic *efx, struct ethtool_cmd *ecmd);
+extern int efx_reset_up(struct efx_nic *efx, struct ethtool_cmd *ecmd,
+ bool ok);
/* Global */
extern void efx_schedule_reset(struct efx_nic *efx, enum reset_type type);
diff --git a/drivers/net/sfc/ethtool.c b/drivers/net/sfc/ethtool.c
index 7989416..fa98af5 100644
--- a/drivers/net/sfc/ethtool.c
+++ b/drivers/net/sfc/ethtool.c
@@ -333,7 +333,10 @@ static int efx_ethtool_fill_self_tests(struct efx_nic *efx,
unsigned int n = 0;
enum efx_loopback_mode mode;
- /* Interrupt */
+ efx_fill_test(n++, strings, data, &tests->mii,
+ "core", 0, "mii", NULL);
+ efx_fill_test(n++, strings, data, &tests->nvram,
+ "core", 0, "nvram", NULL);
efx_fill_test(n++, strings, data, &tests->interrupt,
"core", 0, "interrupt", NULL);
@@ -353,16 +356,17 @@ static int efx_ethtool_fill_self_tests(struct efx_nic *efx,
"eventq.poll", NULL);
}
- /* PHY presence */
- efx_fill_test(n++, strings, data, &tests->phy_ok,
- EFX_PORT_NAME, "phy_ok", NULL);
+ efx_fill_test(n++, strings, data, &tests->registers,
+ "core", 0, "registers", NULL);
+ efx_fill_test(n++, strings, data, &tests->phy,
+ EFX_PORT_NAME, "phy", NULL);
/* Loopback tests */
efx_fill_test(n++, strings, data, &tests->loopback_speed,
EFX_PORT_NAME, "loopback.speed", NULL);
efx_fill_test(n++, strings, data, &tests->loopback_full_duplex,
EFX_PORT_NAME, "loopback.full_duplex", NULL);
- for (mode = LOOPBACK_NONE; mode < LOOPBACK_TEST_MAX; mode++) {
+ for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {
if (!(efx->loopback_modes & (1 << mode)))
continue;
n = efx_fill_loopback_test(efx,
@@ -500,15 +504,9 @@ static void efx_ethtool_self_test(struct net_device *net_dev,
goto out;
/* Perform offline tests only if online tests passed */
- if (offline) {
- /* Stop the kernel from sending packets during the test. */
- efx_stop_queue(efx);
- efx_flush_queues(efx);
-
+ if (offline)
rc = efx_offline_test(efx, &efx_tests,
efx->loopback_modes);
- efx_wake_queue(efx);
- }
out:
if (!already_up)
diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c
index e66d6cf..e0c0b23 100644
--- a/drivers/net/sfc/falcon.c
+++ b/drivers/net/sfc/falcon.c
@@ -2223,6 +2223,170 @@ void falcon_set_multicast_hash(struct efx_nic *efx)
falcon_write(efx, &mc_hash->oword[1], MAC_MCAST_HASH_REG1_KER);
}
+
+/**************************************************************************
+ *
+ * Falcon test code
+ *
+ **************************************************************************/
+
+int falcon_read_nvram(struct efx_nic *efx, struct falcon_nvconfig *nvconfig_out)
+{
+ struct falcon_nvconfig *nvconfig;
+ struct efx_spi_device *spi;
+ void *region;
+ int rc, magic_num, struct_ver;
+ __le16 *word, *limit;
+ u32 csum;
+
+ region = kmalloc(NVCONFIG_END, GFP_KERNEL);
+ if (!region)
+ return -ENOMEM;
+ nvconfig = region + NVCONFIG_OFFSET;
+
+ spi = efx->spi_flash ? efx->spi_flash : efx->spi_eeprom;
+ rc = falcon_spi_read(spi, 0, NVCONFIG_END, NULL, region);
+ if (rc) {
+ EFX_ERR(efx, "Failed to read %s\n",
+ efx->spi_flash ? "flash" : "EEPROM");
+ rc = -EIO;
+ goto out;
+ }
+
+ magic_num = le16_to_cpu(nvconfig->board_magic_num);
+ struct_ver = le16_to_cpu(nvconfig->board_struct_ver);
+
+ rc = -EINVAL;
+ if (magic_num != NVCONFIG_BOARD_MAGIC_NUM) {
+ EFX_ERR(efx, "NVRAM bad magic 0x%x\n", magic_num);
+ goto out;
+ }
+ if (struct_ver < 2) {
+ EFX_ERR(efx, "NVRAM has ancient version 0x%x\n", struct_ver);
+ goto out;
+ } else if (struct_ver < 4) {
+ word = &nvconfig->board_magic_num;
+ limit = (__le16 *) (nvconfig + 1);
+ } else {
+ word = region;
+ limit = region + NVCONFIG_END;
+ }
+ for (csum = 0; word < limit; ++word)
+ csum += le16_to_cpu(*word);
+
+ if (~csum & 0xffff) {
+ EFX_ERR(efx, "NVRAM has incorrect checksum\n");
+ goto out;
+ }
+
+ rc = 0;
+ if (nvconfig_out)
+ memcpy(nvconfig_out, nvconfig, sizeof(*nvconfig));
+
+ out:
+ kfree(region);
+ return rc;
+}
+
+/* Registers tested in the falcon register test */
+static struct {
+ unsigned address;
+ efx_oword_t mask;
+} efx_test_registers[] = {
+ { ADR_REGION_REG_KER,
+ EFX_OWORD32(0x0001FFFF, 0x0001FFFF, 0x0001FFFF, 0x0001FFFF) },
+ { RX_CFG_REG_KER,
+ EFX_OWORD32(0xFFFFFFFE, 0x00017FFF, 0x00000000, 0x00000000) },
+ { TX_CFG_REG_KER,
+ EFX_OWORD32(0x7FFF0037, 0x00000000, 0x00000000, 0x00000000) },
+ { TX_CFG2_REG_KER,
+ EFX_OWORD32(0xFFFEFE80, 0x1FFFFFFF, 0x020000FE, 0x007FFFFF) },
+ { MAC0_CTRL_REG_KER,
+ EFX_OWORD32(0xFFFF0000, 0x00000000, 0x00000000, 0x00000000) },
+ { SRM_TX_DC_CFG_REG_KER,
+ EFX_OWORD32(0x001FFFFF, 0x00000000, 0x00000000, 0x00000000) },
+ { RX_DC_CFG_REG_KER,
+ EFX_OWORD32(0x0000000F, 0x00000000, 0x00000000, 0x00000000) },
+ { RX_DC_PF_WM_REG_KER,
+ EFX_OWORD32(0x000003FF, 0x00000000, 0x00000000, 0x00000000) },
+ { DP_CTRL_REG,
+ EFX_OWORD32(0x00000FFF, 0x00000000, 0x00000000, 0x00000000) },
+ { XM_GLB_CFG_REG,
+ EFX_OWORD32(0x00000C68, 0x00000000, 0x00000000, 0x00000000) },
+ { XM_TX_CFG_REG,
+ EFX_OWORD32(0x00080164, 0x00000000, 0x00000000, 0x00000000) },
+ { XM_RX_CFG_REG,
+ EFX_OWORD32(0x07100A0C, 0x00000000, 0x00000000, 0x00000000) },
+ { XM_RX_PARAM_REG,
+ EFX_OWORD32(0x00001FF8, 0x00000000, 0x00000000, 0x00000000) },
+ { XM_FC_REG,
+ EFX_OWORD32(0xFFFF0001, 0x00000000, 0x00000000, 0x00000000) },
+ { XM_ADR_LO_REG,
+ EFX_OWORD32(0xFFFFFFFF, 0x00000000, 0x00000000, 0x00000000) },
+ { XX_SD_CTL_REG,
+ EFX_OWORD32(0x0003FF0F, 0x00000000, 0x00000000, 0x00000000) },
+};
+
+static bool efx_masked_compare_oword(const efx_oword_t *a, const efx_oword_t *b,
+ const efx_oword_t *mask)
+{
+ return ((a->u64[0] ^ b->u64[0]) & mask->u64[0]) ||
+ ((a->u64[1] ^ b->u64[1]) & mask->u64[1]);
+}
+
+int falcon_test_registers(struct efx_nic *efx)
+{
+ unsigned address = 0, i, j;
+ efx_oword_t mask, imask, original, reg, buf;
+
+ /* Falcon should be in loopback to isolate the XMAC from the PHY */
+ WARN_ON(!LOOPBACK_INTERNAL(efx));
+
+ for (i = 0; i < ARRAY_SIZE(efx_test_registers); ++i) {
+ address = efx_test_registers[i].address;
+ mask = imask = efx_test_registers[i].mask;
+ EFX_INVERT_OWORD(imask);
+
+ falcon_read(efx, &original, address);
+
+ /* bit sweep on and off */
+ for (j = 0; j < 128; j++) {
+ if (!EFX_EXTRACT_OWORD32(mask, j, j))
+ continue;
+
+ /* Test this testable bit can be set in isolation */
+ EFX_AND_OWORD(reg, original, mask);
+ EFX_SET_OWORD32(reg, j, j, 1);
+
+ falcon_write(efx, ®, address);
+ falcon_read(efx, &buf, address);
+
+ if (efx_masked_compare_oword(®, &buf, &mask))
+ goto fail;
+
+ /* Test this testable bit can be cleared in isolation */
+ EFX_OR_OWORD(reg, original, mask);
+ EFX_SET_OWORD32(reg, j, j, 0);
+
+ falcon_write(efx, ®, address);
+ falcon_read(efx, &buf, address);
+
+ if (efx_masked_compare_oword(®, &buf, &mask))
+ goto fail;
+ }
+
+ falcon_write(efx, &original, address);
+ }
+
+ return 0;
+
+fail:
+ EFX_ERR(efx, "wrote "EFX_OWORD_FMT" read "EFX_OWORD_FMT
+ " at address 0x%x mask "EFX_OWORD_FMT"\n", EFX_OWORD_VAL(reg),
+ EFX_OWORD_VAL(buf), address, EFX_OWORD_VAL(mask));
+ return -EIO;
+}
+
/**************************************************************************
*
* Device reset
@@ -2404,37 +2568,22 @@ static void falcon_remove_spi_devices(struct efx_nic *efx)
static int falcon_probe_nvconfig(struct efx_nic *efx)
{
struct falcon_nvconfig *nvconfig;
- struct efx_spi_device *spi;
- int magic_num, struct_ver, board_rev;
+ int board_rev;
int rc;
nvconfig = kmalloc(sizeof(*nvconfig), GFP_KERNEL);
if (!nvconfig)
return -ENOMEM;
- /* Read the whole configuration structure into memory. */
- spi = efx->spi_flash ? efx->spi_flash : efx->spi_eeprom;
- rc = falcon_spi_read(spi, NVCONFIG_BASE, sizeof(*nvconfig),
- NULL, (char *)nvconfig);
- if (rc) {
- EFX_ERR(efx, "Failed to read %s\n", efx->spi_flash ? "flash" :
- "EEPROM");
- goto fail1;
- }
-
- /* Read the MAC addresses */
- memcpy(efx->mac_address, nvconfig->mac_address[0], ETH_ALEN);
-
- /* Read the board configuration. */
- magic_num = le16_to_cpu(nvconfig->board_magic_num);
- struct_ver = le16_to_cpu(nvconfig->board_struct_ver);
-
- if (magic_num != NVCONFIG_BOARD_MAGIC_NUM || struct_ver < 2) {
- EFX_ERR(efx, "Non volatile memory bad magic=%x ver=%x "
- "therefore using defaults\n", magic_num, struct_ver);
+ rc = falcon_read_nvram(efx, nvconfig);
+ if (rc == -EINVAL) {
+ EFX_ERR(efx, "NVRAM is invalid therefore using defaults\n");
efx->phy_type = PHY_TYPE_NONE;
efx->mii.phy_id = PHY_ADDR_INVALID;
board_rev = 0;
+ rc = 0;
+ } else if (rc) {
+ goto fail1;
} else {
struct falcon_nvconfig_board_v2 *v2 = &nvconfig->board_v2;
struct falcon_nvconfig_board_v3 *v3 = &nvconfig->board_v3;
@@ -2443,7 +2592,7 @@ static int falcon_probe_nvconfig(struct efx_nic *efx)
efx->mii.phy_id = v2->port0_phy_addr;
board_rev = le16_to_cpu(v2->board_revision);
- if (struct_ver >= 3) {
+ if (le16_to_cpu(nvconfig->board_struct_ver) >= 3) {
__le32 fl = v3->spi_device_type[EE_SPI_FLASH];
__le32 ee = v3->spi_device_type[EE_SPI_EEPROM];
rc = falcon_spi_device_init(efx, &efx->spi_flash,
@@ -2459,6 +2608,9 @@ static int falcon_probe_nvconfig(struct efx_nic *efx)
}
}
+ /* Read the MAC addresses */
+ memcpy(efx->mac_address, nvconfig->mac_address[0], ETH_ALEN);
+
EFX_LOG(efx, "PHY is %d phy_id %d\n", efx->phy_type, efx->mii.phy_id);
efx_set_board_info(efx, board_rev);
diff --git a/drivers/net/sfc/falcon.h b/drivers/net/sfc/falcon.h
index 41b388b..30d61e4 100644
--- a/drivers/net/sfc/falcon.h
+++ b/drivers/net/sfc/falcon.h
@@ -93,6 +93,12 @@ extern void falcon_update_nic_stats(struct efx_nic *efx);
extern void falcon_set_multicast_hash(struct efx_nic *efx);
extern int falcon_reset_xaui(struct efx_nic *efx);
+/* Tests */
+struct falcon_nvconfig;
+extern int falcon_read_nvram(struct efx_nic *efx,
+ struct falcon_nvconfig *nvconfig);
+extern int falcon_test_registers(struct efx_nic *efx);
+
/**************************************************************************
*
* Falcon MAC stats
diff --git a/drivers/net/sfc/falcon_hwdefs.h b/drivers/net/sfc/falcon_hwdefs.h
index a3260df..e319fd6 100644
--- a/drivers/net/sfc/falcon_hwdefs.h
+++ b/drivers/net/sfc/falcon_hwdefs.h
@@ -1150,7 +1150,9 @@ struct falcon_nvconfig_board_v3 {
#define SPI_DEV_TYPE_FIELD(type, field) \
(((type) >> EFX_LOW_BIT(field)) & EFX_MASK32(EFX_WIDTH(field)))
-#define NVCONFIG_BASE 0x300
+#define NVCONFIG_OFFSET 0x300
+#define NVCONFIG_END 0x400
+
#define NVCONFIG_BOARD_MAGIC_NUM 0xFA1C
struct falcon_nvconfig {
efx_oword_t ee_vpd_cfg_reg; /* 0x300 */
diff --git a/drivers/net/sfc/falcon_xmac.c b/drivers/net/sfc/falcon_xmac.c
index a9ae06a..0d9f68f 100644
--- a/drivers/net/sfc/falcon_xmac.c
+++ b/drivers/net/sfc/falcon_xmac.c
@@ -373,17 +373,9 @@ static void falcon_reconfigure_xgxs_core(struct efx_nic *efx)
reset_xgxs = ((xgxs_loopback != old_xgxs_loopback) ||
(xaui_loopback != old_xaui_loopback) ||
(xgmii_loopback != old_xgmii_loopback));
- if (reset_xgxs) {
- falcon_read(efx, ®, XX_PWR_RST_REG);
- EFX_SET_OWORD_FIELD(reg, XX_RSTXGXSTX_EN, 1);
- EFX_SET_OWORD_FIELD(reg, XX_RSTXGXSRX_EN, 1);
- falcon_write(efx, ®, XX_PWR_RST_REG);
- udelay(1);
- EFX_SET_OWORD_FIELD(reg, XX_RSTXGXSTX_EN, 0);
- EFX_SET_OWORD_FIELD(reg, XX_RSTXGXSRX_EN, 0);
- falcon_write(efx, ®, XX_PWR_RST_REG);
- udelay(1);
- }
+
+ if (reset_xgxs)
+ falcon_reset_xaui(efx);
}
falcon_read(efx, ®, XX_CORE_STAT_REG);
diff --git a/drivers/net/sfc/net_driver.h b/drivers/net/sfc/net_driver.h
index df863bc..531d939 100644
--- a/drivers/net/sfc/net_driver.h
+++ b/drivers/net/sfc/net_driver.h
@@ -515,6 +515,7 @@ struct efx_phy_operations {
void (*clear_interrupt) (struct efx_nic *efx);
int (*check_hw) (struct efx_nic *efx);
void (*reset_xaui) (struct efx_nic *efx);
+ int (*test) (struct efx_nic *efx);
int mmds;
unsigned loopbacks;
};
@@ -533,7 +534,7 @@ enum efx_phy_mode {
static inline bool efx_phy_mode_disabled(enum efx_phy_mode mode)
{
- return (mode & ~PHY_MODE_TX_DISABLED) != 0;
+ return !!(mode & ~PHY_MODE_TX_DISABLED);
}
/*
@@ -655,13 +656,14 @@ union efx_multicast_hash {
* This field will be %NULL if no EEPROM device is present.
* @n_rx_nodesc_drop_cnt: RX no descriptor drop count
* @nic_data: Hardware dependant state
- * @mac_lock: MAC access lock. Protects @port_enabled, efx_monitor() and
- * efx_reconfigure_port()
+ * @mac_lock: MAC access lock. Protects @port_enabled, @phy_mode,
+ * @port_inhibited, efx_monitor() and efx_reconfigure_port()
* @port_enabled: Port enabled indicator.
* Serialises efx_stop_all(), efx_start_all() and efx_monitor() and
* efx_reconfigure_work with kernel interfaces. Safe to read under any
* one of the rtnl_lock, mac_lock, or netif_tx_lock, but all three must
* be held to modify it.
+ * @port_inhibited: If set, the netif_carrier is always off. Hold the mac_lock
* @port_initialized: Port initialized?
* @net_dev: Operating system network device. Consider holding the rtnl lock
* @rx_checksum_enabled: RX checksumming enabled
@@ -671,14 +673,16 @@ union efx_multicast_hash {
* can provide. Generic code converts these into a standard
* &struct net_device_stats.
* @stats_buffer: DMA buffer for statistics
- * @stats_lock: Statistics update lock
+ * @stats_lock: Statistics update lock. Serialises statistics fetches
+ * @stats_enabled: Temporarily disable statistics fetches.
+ * Serialised by @stats_lock
* @mac_address: Permanent MAC address
* @phy_type: PHY type
* @phy_lock: PHY access lock
* @phy_op: PHY interface
* @phy_data: PHY private data (including PHY-specific stats)
* @mii: PHY interface
- * @phy_mode: PHY operating mode
+ * @phy_mode: PHY operating mode. Serialised by @mac_lock.
* @link_up: Link status
* @link_options: Link options (MII/GMII format)
* @n_link_state_changes: Number of times the link has changed state
@@ -733,6 +737,7 @@ struct efx_nic {
struct mutex mac_lock;
bool port_enabled;
+ bool port_inhibited;
bool port_initialized;
struct net_device *net_dev;
@@ -744,6 +749,7 @@ struct efx_nic {
struct efx_mac_stats mac_stats;
struct efx_buffer stats_buffer;
spinlock_t stats_lock;
+ bool stats_enabled;
unsigned char mac_address[ETH_ALEN];
diff --git a/drivers/net/sfc/selftest.c b/drivers/net/sfc/selftest.c
index 2f7def6..362956e 100644
--- a/drivers/net/sfc/selftest.c
+++ b/drivers/net/sfc/selftest.c
@@ -27,6 +27,9 @@
#include "boards.h"
#include "workarounds.h"
#include "mac.h"
+#include "spi.h"
+#include "falcon_io.h"
+#include "mdio_10g.h"
/*
* Loopback test packet structure
@@ -51,7 +54,7 @@ static const char *payload_msg =
"Hello world! This is an Efx loopback test in progress!";
/**
- * efx_selftest_state - persistent state during a selftest
+ * efx_loopback_state - persistent state during a loopback selftest
* @flush: Drop all packets in efx_loopback_rx_packet
* @packet_count: Number of packets being used in this test
* @skbs: An array of skbs transmitted
@@ -59,7 +62,7 @@ static const char *payload_msg =
* @rx_bad: RX bad packet count
* @payload: Payload used in tests
*/
-struct efx_selftest_state {
+struct efx_loopback_state {
bool flush;
int packet_count;
struct sk_buff **skbs;
@@ -74,21 +77,65 @@ struct efx_selftest_state {
/**************************************************************************
*
- * Configurable values
+ * MII, NVRAM and register tests
*
**************************************************************************/
-/* Level of loopback testing
- *
- * The maximum packet burst length is 16**(n-1), i.e.
- *
- * - Level 0 : no packets
- * - Level 1 : 1 packet
- * - Level 2 : 17 packets (1 * 1 packet, 1 * 16 packets)
- * - Level 3 : 273 packets (1 * 1 packet, 1 * 16 packet, 1 * 256 packets)
- *
- */
-static unsigned int loopback_test_level = 3;
+static int efx_test_mii(struct efx_nic *efx, struct efx_self_tests *tests)
+{
+ int rc = 0;
+ u16 physid1, physid2;
+ struct mii_if_info *mii = &efx->mii;
+ struct net_device *net_dev = efx->net_dev;
+
+ if (efx->phy_type == PHY_TYPE_NONE)
+ return 0;
+
+ mutex_lock(&efx->mac_lock);
+ tests->mii = -1;
+
+ physid1 = mii->mdio_read(net_dev, mii->phy_id, MII_PHYSID1);
+ physid2 = mii->mdio_read(net_dev, mii->phy_id, MII_PHYSID2);
+
+ if ((physid1 == 0x0000) || (physid1 == 0xffff) ||
+ (physid2 == 0x0000) || (physid2 == 0xffff)) {
+ EFX_ERR(efx, "no MII PHY present with ID %d\n",
+ mii->phy_id);
+ rc = -EINVAL;
+ goto out;
+ }
+
+ rc = mdio_clause45_check_mmds(efx, efx->phy_op->mmds, 0);
+ if (rc)
+ goto out;
+
+out:
+ mutex_unlock(&efx->mac_lock);
+ tests->mii = rc ? -1 : 1;
+ return rc;
+}
+
+static int efx_test_nvram(struct efx_nic *efx, struct efx_self_tests *tests)
+{
+ int rc;
+
+ rc = falcon_read_nvram(efx, NULL);
+ tests->nvram = rc ? -1 : 1;
+ return rc;
+}
+
+static int efx_test_chip(struct efx_nic *efx, struct efx_self_tests *tests)
+{
+ int rc;
+
+ /* Not supported on A-series silicon */
+ if (falcon_rev(efx) < FALCON_REV_B0)
+ return 0;
+
+ rc = falcon_test_registers(efx);
+ tests->registers = rc ? -1 : 1;
+ return rc;
+}
/**************************************************************************
*
@@ -199,39 +246,18 @@ static int efx_test_eventq_irq(struct efx_channel *channel,
return 0;
}
-/**************************************************************************
- *
- * PHY testing
- *
- **************************************************************************/
-
-/* Check PHY presence by reading the PHY ID registers */
-static int efx_test_phy(struct efx_nic *efx,
- struct efx_self_tests *tests)
+static int efx_test_phy(struct efx_nic *efx, struct efx_self_tests *tests)
{
- u16 physid1, physid2;
- struct mii_if_info *mii = &efx->mii;
- struct net_device *net_dev = efx->net_dev;
-
- if (efx->phy_type == PHY_TYPE_NONE)
- return 0;
-
- EFX_LOG(efx, "testing PHY presence\n");
- tests->phy_ok = -1;
-
- physid1 = mii->mdio_read(net_dev, mii->phy_id, MII_PHYSID1);
- physid2 = mii->mdio_read(net_dev, mii->phy_id, MII_PHYSID2);
+ int rc;
- if ((physid1 != 0x0000) && (physid1 != 0xffff) &&
- (physid2 != 0x0000) && (physid2 != 0xffff)) {
- EFX_LOG(efx, "found MII PHY %d ID 0x%x:%x\n",
- mii->phy_id, physid1, physid2);
- tests->phy_ok = 1;
+ if (!efx->phy_op->test)
return 0;
- }
- EFX_ERR(efx, "no MII PHY present with ID %d\n", mii->phy_id);
- return -ENODEV;
+ mutex_lock(&efx->mac_lock);
+ rc = efx->phy_op->test(efx);
+ mutex_unlock(&efx->mac_lock);
+ tests->phy = rc ? -1 : 1;
+ return rc;
}
/**************************************************************************
@@ -247,7 +273,7 @@ static int efx_test_phy(struct efx_nic *efx,
void efx_loopback_rx_packet(struct efx_nic *efx,
const char *buf_ptr, int pkt_len)
{
- struct efx_selftest_state *state = efx->loopback_selftest;
+ struct efx_loopback_state *state = efx->loopback_selftest;
struct efx_loopback_payload *received;
struct efx_loopback_payload *payload;
@@ -258,7 +284,7 @@ void efx_loopback_rx_packet(struct efx_nic *efx,
return;
payload = &state->payload;
-
+
received = (struct efx_loopback_payload *) buf_ptr;
received->ip.saddr = payload->ip.saddr;
if (state->offload_csum)
@@ -332,7 +358,7 @@ void efx_loopback_rx_packet(struct efx_nic *efx,
/* Initialise an efx_selftest_state for a new iteration */
static void efx_iterate_state(struct efx_nic *efx)
{
- struct efx_selftest_state *state = efx->loopback_selftest;
+ struct efx_loopback_state *state = efx->loopback_selftest;
struct net_device *net_dev = efx->net_dev;
struct efx_loopback_payload *payload = &state->payload;
@@ -368,14 +394,14 @@ static void efx_iterate_state(struct efx_nic *efx)
static int efx_begin_loopback(struct efx_tx_queue *tx_queue)
{
struct efx_nic *efx = tx_queue->efx;
- struct efx_selftest_state *state = efx->loopback_selftest;
+ struct efx_loopback_state *state = efx->loopback_selftest;
struct efx_loopback_payload *payload;
struct sk_buff *skb;
int i, rc;
/* Transmit N copies of buffer */
for (i = 0; i < state->packet_count; i++) {
- /* Allocate an skb, holding an extra reference for
+ /* Allocate an skb, holding an extra reference for
* transmit completion counting */
skb = alloc_skb(sizeof(state->payload), GFP_KERNEL);
if (!skb)
@@ -416,7 +442,7 @@ static int efx_begin_loopback(struct efx_tx_queue *tx_queue)
static int efx_poll_loopback(struct efx_nic *efx)
{
- struct efx_selftest_state *state = efx->loopback_selftest;
+ struct efx_loopback_state *state = efx->loopback_selftest;
struct efx_channel *channel;
/* NAPI polling is not enabled, so process channels
@@ -432,7 +458,7 @@ static int efx_end_loopback(struct efx_tx_queue *tx_queue,
struct efx_loopback_self_tests *lb_tests)
{
struct efx_nic *efx = tx_queue->efx;
- struct efx_selftest_state *state = efx->loopback_selftest;
+ struct efx_loopback_state *state = efx->loopback_selftest;
struct sk_buff *skb;
int tx_done = 0, rx_good, rx_bad;
int i, rc = 0;
@@ -491,10 +517,10 @@ efx_test_loopback(struct efx_tx_queue *tx_queue,
struct efx_loopback_self_tests *lb_tests)
{
struct efx_nic *efx = tx_queue->efx;
- struct efx_selftest_state *state = efx->loopback_selftest;
+ struct efx_loopback_state *state = efx->loopback_selftest;
int i, begin_rc, end_rc;
- for (i = 0; i < loopback_test_level; i++) {
+ for (i = 0; i < 3; i++) {
/* Determine how many packets to send */
state->packet_count = (efx->type->txd_ring_mask + 1) / 3;
state->packet_count = min(1 << (i << 2), state->packet_count);
@@ -537,42 +563,28 @@ efx_test_loopback(struct efx_tx_queue *tx_queue,
return 0;
}
-static int efx_test_loopbacks(struct efx_nic *efx,
+static int efx_test_loopbacks(struct efx_nic *efx, struct ethtool_cmd ecmd,
struct efx_self_tests *tests,
unsigned int loopback_modes)
{
- struct efx_selftest_state *state = efx->loopback_selftest;
- struct ethtool_cmd ecmd, ecmd_loopback;
+ enum efx_loopback_mode mode;
+ struct efx_loopback_state *state;
struct efx_tx_queue *tx_queue;
- enum efx_loopback_mode old_mode, mode;
bool link_up;
- int count, rc;
-
- rc = efx_ethtool_get_settings(efx->net_dev, &ecmd);
- if (rc) {
- EFX_ERR(efx, "could not get GMII settings\n");
- return rc;
- }
- old_mode = efx->loopback_mode;
-
- /* Disable autonegotiation for the purposes of loopback */
- memcpy(&ecmd_loopback, &ecmd, sizeof(ecmd_loopback));
- if (ecmd_loopback.autoneg == AUTONEG_ENABLE) {
- ecmd_loopback.autoneg = AUTONEG_DISABLE;
- ecmd_loopback.duplex = DUPLEX_FULL;
- ecmd_loopback.speed = SPEED_10000;
- }
+ int count, rc = 0;
- rc = efx_ethtool_set_settings(efx->net_dev, &ecmd_loopback);
- if (rc) {
- EFX_ERR(efx, "could not disable autonegotiation\n");
- goto out;
- }
- tests->loopback_speed = ecmd_loopback.speed;
- tests->loopback_full_duplex = ecmd_loopback.duplex;
+ /* Set the port loopback_selftest member. From this point on
+ * all received packets will be dropped. Mark the state as
+ * "flushing" so all inflight packets are dropped */
+ state = kzalloc(sizeof(*state), GFP_KERNEL);
+ if (state == NULL)
+ return -ENOMEM;
+ BUG_ON(efx->loopback_selftest);
+ state->flush = true;
+ efx->loopback_selftest = state;
/* Test all supported loopback modes */
- for (mode = LOOPBACK_NONE; mode < LOOPBACK_TEST_MAX; mode++) {
+ for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {
if (!(loopback_modes & (1 << mode)))
continue;
@@ -601,7 +613,7 @@ static int efx_test_loopbacks(struct efx_nic *efx,
*/
link_up = efx->link_up;
if (!falcon_xaui_link_ok(efx))
- link_up = 0;
+ link_up = false;
} while ((++count < 20) && !link_up);
@@ -629,10 +641,11 @@ static int efx_test_loopbacks(struct efx_nic *efx,
}
out:
- /* Take out of loopback and restore PHY settings */
+ /* Remove the flush. The caller will remove the loopback setting */
state->flush = true;
- efx->loopback_mode = old_mode;
- efx_ethtool_set_settings(efx->net_dev, &ecmd);
+ efx->loopback_selftest = NULL;
+ wmb();
+ kfree(state);
return rc;
}
@@ -648,18 +661,27 @@ static int efx_test_loopbacks(struct efx_nic *efx,
int efx_online_test(struct efx_nic *efx, struct efx_self_tests *tests)
{
struct efx_channel *channel;
- int rc;
+ int rc, rc2 = 0;
+
+ rc = efx_test_mii(efx, tests);
+ if (rc && !rc2)
+ rc2 = rc;
+
+ rc = efx_test_nvram(efx, tests);
+ if (rc && !rc2)
+ rc2 = rc;
rc = efx_test_interrupts(efx, tests);
- if (rc)
- return rc;
+ if (rc && !rc2)
+ rc2 = rc;
+
efx_for_each_channel(channel, efx) {
rc = efx_test_eventq_irq(channel, tests);
- if (rc)
- return rc;
+ if (rc && !rc2)
+ rc2 = rc;
}
- rc = efx_test_phy(efx, tests);
- return rc;
+
+ return rc2;
}
/* Offline (i.e. disruptive) testing
@@ -667,27 +689,66 @@ int efx_online_test(struct efx_nic *efx, struct efx_self_tests *tests)
int efx_offline_test(struct efx_nic *efx,
struct efx_self_tests *tests, unsigned int loopback_modes)
{
- struct efx_selftest_state *state;
- int rc;
+ enum efx_loopback_mode loopback_mode = efx->loopback_mode;
+ int phy_mode = efx->phy_mode;
+ struct ethtool_cmd ecmd, ecmd_test;
+ int rc, rc2 = 0;
+
+ /* force the carrier state off so the kernel doesn't transmit during
+ * the loopback test, and the watchdog timeout doesn't fire. Also put
+ * falcon into loopback for the register test.
+ */
+ mutex_lock(&efx->mac_lock);
+ efx->port_inhibited = true;
+ if (efx->loopback_modes)
+ efx->loopback_mode = __ffs(efx->loopback_modes);
+ __efx_reconfigure_port(efx);
+ mutex_unlock(&efx->mac_lock);
+
+ /* free up all consumers of SRAM (including all the queues) */
+ efx_reset_down(efx, &ecmd);
+
+ rc = efx_test_chip(efx, tests);
+ if (rc && !rc2)
+ rc2 = rc;
+
+ /* reset the chip to recover from the register test */
+ rc = falcon_reset_hw(efx, RESET_TYPE_ALL);
+
+ /* Modify the saved ecmd so that when efx_reset_up() restores the phy
+ * state, AN is disabled, and the phy is powered, and out of loopback */
+ memcpy(&ecmd_test, &ecmd, sizeof(ecmd_test));
+ if (ecmd_test.autoneg == AUTONEG_ENABLE) {
+ ecmd_test.autoneg = AUTONEG_DISABLE;
+ ecmd_test.duplex = DUPLEX_FULL;
+ ecmd_test.speed = SPEED_10000;
+ }
+ efx->loopback_mode = LOOPBACK_NONE;
- /* Create a selftest_state structure to hold state for the test */
- state = kzalloc(sizeof(*state), GFP_KERNEL);
- if (state == NULL)
- return -ENOMEM;
+ rc = efx_reset_up(efx, &ecmd_test, rc == 0);
+ if (rc) {
+ EFX_ERR(efx, "Unable to recover from chip test\n");
+ efx_schedule_reset(efx, RESET_TYPE_DISABLE);
+ return rc;
+ }
- /* Set the port loopback_selftest member. From this point on
- * all received packets will be dropped. Mark the state as
- * "flushing" so all inflight packets are dropped */
- BUG_ON(efx->loopback_selftest);
- state->flush = true;
- efx->loopback_selftest = state;
+ tests->loopback_speed = ecmd_test.speed;
+ tests->loopback_full_duplex = ecmd_test.duplex;
- rc = efx_test_loopbacks(efx, tests, loopback_modes);
+ rc = efx_test_phy(efx, tests);
+ if (rc && !rc2)
+ rc2 = rc;
- efx->loopback_selftest = NULL;
- wmb();
- kfree(state);
+ rc = efx_test_loopbacks(efx, ecmd_test, tests, loopback_modes);
+ if (rc && !rc2)
+ rc2 = rc;
- return rc;
+ /* restore the PHY to the previous state */
+ efx->loopback_mode = loopback_mode;
+ efx->phy_mode = phy_mode;
+ efx->port_inhibited = false;
+ efx_ethtool_set_settings(efx->net_dev, &ecmd);
+
+ return rc2;
}
diff --git a/drivers/net/sfc/selftest.h b/drivers/net/sfc/selftest.h
index cd59f00..fc15df1 100644
--- a/drivers/net/sfc/selftest.h
+++ b/drivers/net/sfc/selftest.h
@@ -29,14 +29,19 @@ struct efx_loopback_self_tests {
* indicates failure.
*/
struct efx_self_tests {
+ /* online tests */
+ int mii;
+ int nvram;
int interrupt;
int eventq_dma[EFX_MAX_CHANNELS];
int eventq_int[EFX_MAX_CHANNELS];
int eventq_poll[EFX_MAX_CHANNELS];
- int phy_ok;
+ /* offline tests */
+ int registers;
+ int phy;
int loopback_speed;
int loopback_full_duplex;
- struct efx_loopback_self_tests loopback[LOOPBACK_TEST_MAX];
+ struct efx_loopback_self_tests loopback[LOOPBACK_TEST_MAX + 1];
};
extern void efx_loopback_rx_packet(struct efx_nic *efx,
diff --git a/drivers/net/sfc/tenxpress.c b/drivers/net/sfc/tenxpress.c
index 499e127..8412dbe 100644
--- a/drivers/net/sfc/tenxpress.c
+++ b/drivers/net/sfc/tenxpress.c
@@ -65,25 +65,10 @@
#define PMA_PMD_LED_DEFAULT (PMA_PMD_LED_OFF << PMA_PMD_LED_RX_LBN)
-/* Self test (BIST) control register */
-#define PMA_PMD_BIST_CTRL_REG (0xc014)
-#define PMA_PMD_BIST_BER_LBN (2) /* Run BER test */
-#define PMA_PMD_BIST_CONT_LBN (1) /* Run continuous BIST until cleared */
-#define PMA_PMD_BIST_SINGLE_LBN (0) /* Run 1 BIST iteration (self clears) */
-/* Self test status register */
-#define PMA_PMD_BIST_STAT_REG (0xc015)
-#define PMA_PMD_BIST_ENX_LBN (3)
-#define PMA_PMD_BIST_PMA_LBN (2)
-#define PMA_PMD_BIST_RXD_LBN (1)
-#define PMA_PMD_BIST_AFE_LBN (0)
-
/* Special Software reset register */
#define PMA_PMD_EXT_CTRL_REG 49152
#define PMA_PMD_EXT_SSR_LBN 15
-#define BIST_MAX_DELAY (1000)
-#define BIST_POLL_DELAY (10)
-
/* Misc register defines */
#define PCS_CLOCK_CTRL_REG 0xd801
#define PLL312_RST_N_LBN 2
@@ -491,6 +476,12 @@ static void tenxpress_reset_xaui(struct efx_nic *efx)
udelay(10);
}
+static int tenxpress_phy_test(struct efx_nic *efx)
+{
+ /* BIST is automatically run after a special software reset */
+ return tenxpress_special_reset(efx);
+}
+
struct efx_phy_operations falcon_tenxpress_phy_ops = {
.init = tenxpress_phy_init,
.reconfigure = tenxpress_phy_reconfigure,
@@ -498,6 +489,7 @@ struct efx_phy_operations falcon_tenxpress_phy_ops = {
.fini = tenxpress_phy_fini,
.clear_interrupt = tenxpress_phy_clear_interrupt,
.reset_xaui = tenxpress_reset_xaui,
+ .test = tenxpress_phy_test,
.mmds = TENXPRESS_REQUIRED_DEVS,
.loopbacks = TENXPRESS_LOOPBACKS,
};
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 39/52] sfc: Remove the STATE_RESETTING flag
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (37 preceding siblings ...)
2008-09-01 11:49 ` [PATCH 38/52] sfc: Extend self-tests Ben Hutchings
@ 2008-09-01 11:49 ` Ben Hutchings
2008-09-01 11:49 ` [PATCH 40/52] sfc: Rework efx_set_multicast_hash() Ben Hutchings
` (12 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:49 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
This was originally a kludge to fix broken locking, which has since
been fixed properly.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/efx.c | 5 +----
drivers/net/sfc/net_driver.h | 3 +--
2 files changed, 2 insertions(+), 6 deletions(-)
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c
index e1e2f80..d593086 100644
--- a/drivers/net/sfc/efx.c
+++ b/drivers/net/sfc/efx.c
@@ -140,8 +140,7 @@ static void efx_fini_channels(struct efx_nic *efx);
#define EFX_ASSERT_RESET_SERIALISED(efx) \
do { \
- if ((efx->state == STATE_RUNNING) || \
- (efx->state == STATE_RESETTING)) \
+ if (efx->state == STATE_RUNNING) \
ASSERT_RTNL(); \
} while (0)
@@ -1615,7 +1614,6 @@ static int efx_reset(struct efx_nic *efx)
goto unlock_rtnl;
}
- efx->state = STATE_RESETTING;
EFX_INFO(efx, "resetting (%d)\n", method);
efx_reset_down(efx, &ecmd);
@@ -1646,7 +1644,6 @@ static int efx_reset(struct efx_nic *efx)
goto disable;
EFX_LOG(efx, "reset complete\n");
- efx->state = STATE_RUNNING;
unlock_rtnl:
rtnl_unlock();
return 0;
diff --git a/drivers/net/sfc/net_driver.h b/drivers/net/sfc/net_driver.h
index 531d939..567df00 100644
--- a/drivers/net/sfc/net_driver.h
+++ b/drivers/net/sfc/net_driver.h
@@ -459,8 +459,7 @@ enum nic_state {
STATE_INIT = 0,
STATE_RUNNING = 1,
STATE_FINI = 2,
- STATE_RESETTING = 3, /* rtnl_lock always held */
- STATE_DISABLED = 4,
+ STATE_DISABLED = 3,
STATE_MAX,
};
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 40/52] sfc: Rework efx_set_multicast_hash()
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (38 preceding siblings ...)
2008-09-01 11:49 ` [PATCH 39/52] sfc: Remove the STATE_RESETTING flag Ben Hutchings
@ 2008-09-01 11:49 ` Ben Hutchings
2008-09-03 13:54 ` Jeff Garzik
2008-09-01 11:49 ` [PATCH 42/52] sfc: Fix memory BAR release call on error path Ben Hutchings
` (11 subsequent siblings)
51 siblings, 1 reply; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:49 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
When !port_enabled, defer the write to reconfigure_mac_wrapper.
Whilst here, simplify the logic now that efx_start_port() always calls
efx_reconfigure_port().
From: Steve Hodgson <shodgson@solarflare.com>
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/efx.c | 28 +++++++++++++++++-----------
1 file changed, 17 insertions(+), 11 deletions(-)
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c
index d593086..0d47d6f 100644
--- a/drivers/net/sfc/efx.c
+++ b/drivers/net/sfc/efx.c
@@ -560,6 +560,12 @@ void __efx_reconfigure_port(struct efx_nic *efx)
EFX_LOG(efx, "reconfiguring MAC from PHY settings on CPU %d\n",
raw_smp_processor_id());
+ /* Serialise the promiscuous flag with efx_set_multicast_list. */
+ if (efx_dev_registered(efx)) {
+ netif_addr_lock_bh(efx->net_dev);
+ netif_addr_unlock_bh(efx->net_dev);
+ }
+
falcon_reconfigure_xmac(efx);
/* Inform kernel of loss/gain of carrier */
@@ -1410,26 +1416,19 @@ static int efx_set_mac_address(struct net_device *net_dev, void *data)
return 0;
}
-/* Context: netif_tx_lock held, BHs disabled. */
+/* Context: netif_addr_lock held, BHs disabled. */
static void efx_set_multicast_list(struct net_device *net_dev)
{
struct efx_nic *efx = netdev_priv(net_dev);
struct dev_mc_list *mc_list = net_dev->mc_list;
union efx_multicast_hash *mc_hash = &efx->multicast_hash;
- bool promiscuous;
+ bool promiscuous = !!(net_dev->flags & IFF_PROMISC);
+ bool changed = (efx->promiscuous != promiscuous);
u32 crc;
int bit;
int i;
- /* Set per-MAC promiscuity flag and reconfigure MAC if necessary */
- promiscuous = !!(net_dev->flags & IFF_PROMISC);
- if (efx->promiscuous != promiscuous) {
- efx->promiscuous = promiscuous;
- /* Close the window between efx_stop_port() and efx_flush_all()
- * by only queuing work when the port is enabled. */
- if (efx->port_enabled)
- queue_work(efx->workqueue, &efx->reconfigure_work);
- }
+ efx->promiscuous = promiscuous;
/* Build multicast hash table */
if (promiscuous || (net_dev->flags & IFF_ALLMULTI)) {
@@ -1444,6 +1443,13 @@ static void efx_set_multicast_list(struct net_device *net_dev)
}
}
+ if (!efx->port_enabled)
+ /* Delay pushing settings until efx_start_port() */
+ return;
+
+ if (changed)
+ queue_work(efx->workqueue, &efx->reconfigure_work);
+
/* Create and activate new global multicast hash table */
falcon_set_multicast_hash(efx);
}
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* Re: [PATCH 40/52] sfc: Rework efx_set_multicast_hash()
2008-09-01 11:49 ` [PATCH 40/52] sfc: Rework efx_set_multicast_hash() Ben Hutchings
@ 2008-09-03 13:54 ` Jeff Garzik
0 siblings, 0 replies; 55+ messages in thread
From: Jeff Garzik @ 2008-09-03 13:54 UTC (permalink / raw)
To: Ben Hutchings; +Cc: netdev, linux-net-drivers
Ben Hutchings wrote:
> When !port_enabled, defer the write to reconfigure_mac_wrapper.
>
> Whilst here, simplify the logic now that efx_start_port() always calls
> efx_reconfigure_port().
>
> From: Steve Hodgson <shodgson@solarflare.com>
> Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
> ---
> drivers/net/sfc/efx.c | 28 +++++++++++++++++-----------
> 1 file changed, 17 insertions(+), 11 deletions(-)
applied patches 1-40
please resend patches 41- because a few did not arrive here
^ permalink raw reply [flat|nested] 55+ messages in thread
* [PATCH 42/52] sfc: Fix memory BAR release call on error path
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (39 preceding siblings ...)
2008-09-01 11:49 ` [PATCH 40/52] sfc: Rework efx_set_multicast_hash() Ben Hutchings
@ 2008-09-01 11:49 ` Ben Hutchings
2008-09-01 11:49 ` [PATCH 43/52] sfc: Remove workaround for old firmware bug Ben Hutchings
` (10 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:49 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
Match pci_request_region() with pci_release_region(), not
release_mem_region().
From: Steve Hodgson <shodgson@solarflare.com>
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/efx.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c
index 4b26ad0..c295ea6 100644
--- a/drivers/net/sfc/efx.c
+++ b/drivers/net/sfc/efx.c
@@ -780,7 +780,7 @@ static int efx_init_io(struct efx_nic *efx)
return 0;
fail4:
- release_mem_region(efx->membase_phys, efx->type->mem_map_size);
+ pci_release_region(efx->pci_dev, efx->type->mem_bar);
fail3:
efx->membase_phys = 0;
fail2:
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 43/52] sfc: Remove workaround for old firmware bug
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (40 preceding siblings ...)
2008-09-01 11:49 ` [PATCH 42/52] sfc: Fix memory BAR release call on error path Ben Hutchings
@ 2008-09-01 11:49 ` Ben Hutchings
2008-09-01 11:49 ` [PATCH 44/52] sfc: Serialise tenxpress_special_reset() with statistics fetches Ben Hutchings
` (9 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:49 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
There was a bug in XAUI synchronisation in early 10Xpress firmware
versions. This is fixed in released firmware and we do not need to
work around it.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/efx.c | 1 -
drivers/net/sfc/falcon_xmac.c | 88 +----------------------------------------
drivers/net/sfc/net_driver.h | 2 -
drivers/net/sfc/sfe4001.c | 12 ------
drivers/net/sfc/tenxpress.c | 51 -----------------------
drivers/net/sfc/workarounds.h | 2 -
drivers/net/sfc/xfp_phy.c | 1 -
7 files changed, 1 insertions(+), 156 deletions(-)
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c
index c295ea6..ef72413 100644
--- a/drivers/net/sfc/efx.c
+++ b/drivers/net/sfc/efx.c
@@ -1750,7 +1750,6 @@ static struct efx_phy_operations efx_dummy_phy_operations = {
.check_hw = efx_port_dummy_op_int,
.fini = efx_port_dummy_op_void,
.clear_interrupt = efx_port_dummy_op_void,
- .reset_xaui = efx_port_dummy_op_void,
};
static struct efx_board efx_dummy_board_info = {
diff --git a/drivers/net/sfc/falcon_xmac.c b/drivers/net/sfc/falcon_xmac.c
index 0d9f68f..d401231 100644
--- a/drivers/net/sfc/falcon_xmac.c
+++ b/drivers/net/sfc/falcon_xmac.c
@@ -78,79 +78,7 @@ static void falcon_setup_xaui(struct efx_nic *efx)
falcon_write(efx, &txdrv, XX_TXDRV_CTL_REG);
}
-static void falcon_hold_xaui_in_rst(struct efx_nic *efx)
-{
- efx_oword_t reg;
-
- EFX_ZERO_OWORD(reg);
- EFX_SET_OWORD_FIELD(reg, XX_PWRDNA_EN, 1);
- EFX_SET_OWORD_FIELD(reg, XX_PWRDNB_EN, 1);
- EFX_SET_OWORD_FIELD(reg, XX_PWRDNC_EN, 1);
- EFX_SET_OWORD_FIELD(reg, XX_PWRDND_EN, 1);
- EFX_SET_OWORD_FIELD(reg, XX_RSTPLLAB_EN, 1);
- EFX_SET_OWORD_FIELD(reg, XX_RSTPLLCD_EN, 1);
- EFX_SET_OWORD_FIELD(reg, XX_RESETA_EN, 1);
- EFX_SET_OWORD_FIELD(reg, XX_RESETB_EN, 1);
- EFX_SET_OWORD_FIELD(reg, XX_RESETC_EN, 1);
- EFX_SET_OWORD_FIELD(reg, XX_RESETD_EN, 1);
- EFX_SET_OWORD_FIELD(reg, XX_RSTXGXSRX_EN, 1);
- EFX_SET_OWORD_FIELD(reg, XX_RSTXGXSTX_EN, 1);
- falcon_write(efx, ®, XX_PWR_RST_REG);
- udelay(10);
-}
-
-static int _falcon_reset_xaui_a(struct efx_nic *efx)
-{
- efx_oword_t reg;
-
- falcon_hold_xaui_in_rst(efx);
- falcon_read(efx, ®, XX_PWR_RST_REG);
-
- /* Follow the RAMBUS XAUI data reset sequencing
- * Channels A and B first: power down, reset PLL, reset, clear
- */
- EFX_SET_OWORD_FIELD(reg, XX_PWRDNA_EN, 0);
- EFX_SET_OWORD_FIELD(reg, XX_PWRDNB_EN, 0);
- falcon_write(efx, ®, XX_PWR_RST_REG);
- udelay(10);
-
- EFX_SET_OWORD_FIELD(reg, XX_RSTPLLAB_EN, 0);
- falcon_write(efx, ®, XX_PWR_RST_REG);
- udelay(10);
-
- EFX_SET_OWORD_FIELD(reg, XX_RESETA_EN, 0);
- EFX_SET_OWORD_FIELD(reg, XX_RESETB_EN, 0);
- falcon_write(efx, ®, XX_PWR_RST_REG);
- udelay(10);
-
- /* Channels C and D: power down, reset PLL, reset, clear */
- EFX_SET_OWORD_FIELD(reg, XX_PWRDNC_EN, 0);
- EFX_SET_OWORD_FIELD(reg, XX_PWRDND_EN, 0);
- falcon_write(efx, ®, XX_PWR_RST_REG);
- udelay(10);
-
- EFX_SET_OWORD_FIELD(reg, XX_RSTPLLCD_EN, 0);
- falcon_write(efx, ®, XX_PWR_RST_REG);
- udelay(10);
-
- EFX_SET_OWORD_FIELD(reg, XX_RESETC_EN, 0);
- EFX_SET_OWORD_FIELD(reg, XX_RESETD_EN, 0);
- falcon_write(efx, ®, XX_PWR_RST_REG);
- udelay(10);
-
- /* Setup XAUI */
- falcon_setup_xaui(efx);
- udelay(10);
-
- /* Take XGXS out of reset */
- EFX_ZERO_OWORD(reg);
- falcon_write(efx, ®, XX_PWR_RST_REG);
- udelay(10);
-
- return 0;
-}
-
-static int _falcon_reset_xaui_b(struct efx_nic *efx)
+int falcon_reset_xaui(struct efx_nic *efx)
{
efx_oword_t reg;
int count;
@@ -171,20 +99,6 @@ static int _falcon_reset_xaui_b(struct efx_nic *efx)
return -ETIMEDOUT;
}
-int falcon_reset_xaui(struct efx_nic *efx)
-{
- int rc;
-
- if (EFX_WORKAROUND_9388(efx)) {
- falcon_hold_xaui_in_rst(efx);
- efx->phy_op->reset_xaui(efx);
- rc = _falcon_reset_xaui_a(efx);
- } else {
- rc = _falcon_reset_xaui_b(efx);
- }
- return rc;
-}
-
static bool falcon_xgmii_status(struct efx_nic *efx)
{
efx_oword_t reg;
diff --git a/drivers/net/sfc/net_driver.h b/drivers/net/sfc/net_driver.h
index 567df00..be3d2ba 100644
--- a/drivers/net/sfc/net_driver.h
+++ b/drivers/net/sfc/net_driver.h
@@ -503,7 +503,6 @@ enum efx_fc_type {
* @clear_interrupt: Clear down interrupt
* @blink: Blink LEDs
* @check_hw: Check hardware
- * @reset_xaui: Reset XAUI side of PHY for (software sequenced reset)
* @mmds: MMD presence mask
* @loopbacks: Supported loopback modes mask
*/
@@ -513,7 +512,6 @@ struct efx_phy_operations {
void (*reconfigure) (struct efx_nic *efx);
void (*clear_interrupt) (struct efx_nic *efx);
int (*check_hw) (struct efx_nic *efx);
- void (*reset_xaui) (struct efx_nic *efx);
int (*test) (struct efx_nic *efx);
int mmds;
unsigned loopbacks;
diff --git a/drivers/net/sfc/sfe4001.c b/drivers/net/sfc/sfe4001.c
index b7005da..fe4e3fd 100644
--- a/drivers/net/sfc/sfe4001.c
+++ b/drivers/net/sfc/sfe4001.c
@@ -129,18 +129,6 @@ static int sfe4001_poweron(struct efx_nic *efx)
unsigned int i, j;
int rc;
u8 out;
- efx_oword_t reg;
-
- /* Ensure that XGXS and XAUI SerDes are held in reset */
- EFX_POPULATE_OWORD_7(reg, XX_PWRDNA_EN, 1,
- XX_PWRDNB_EN, 1,
- XX_RSTPLLAB_EN, 1,
- XX_RESETA_EN, 1,
- XX_RESETB_EN, 1,
- XX_RSTXGXSRX_EN, 1,
- XX_RSTXGXSTX_EN, 1);
- falcon_write(efx, ®, XX_PWR_RST_REG);
- udelay(10);
/* Clear any previous over-temperature alert */
rc = i2c_smbus_read_byte_data(hwmon_client, RSL);
diff --git a/drivers/net/sfc/tenxpress.c b/drivers/net/sfc/tenxpress.c
index 8412dbe..77e7f3a 100644
--- a/drivers/net/sfc/tenxpress.c
+++ b/drivers/net/sfc/tenxpress.c
@@ -146,8 +146,6 @@ static int tenxpress_phy_check(struct efx_nic *efx)
return 0;
}
-static void tenxpress_reset_xaui(struct efx_nic *efx);
-
static int tenxpress_init(struct efx_nic *efx)
{
int rc, reg;
@@ -428,54 +426,6 @@ void tenxpress_phy_blink(struct efx_nic *efx, bool blink)
PMA_PMD_LED_OVERR_REG, reg);
}
-static void tenxpress_reset_xaui(struct efx_nic *efx)
-{
- int phy = efx->mii.phy_id;
- int clk_ctrl, test_select, soft_rst2;
-
- /* Real work is done on clock_ctrl other resets are thought to be
- * optional but make the reset more reliable
- */
-
- /* Read */
- clk_ctrl = mdio_clause45_read(efx, phy, MDIO_MMD_PCS,
- PCS_CLOCK_CTRL_REG);
- test_select = mdio_clause45_read(efx, phy, MDIO_MMD_PCS,
- PCS_TEST_SELECT_REG);
- soft_rst2 = mdio_clause45_read(efx, phy, MDIO_MMD_PCS,
- PCS_SOFT_RST2_REG);
-
- /* Put in reset */
- test_select &= ~(1 << CLK312_EN_LBN);
- mdio_clause45_write(efx, phy, MDIO_MMD_PCS,
- PCS_TEST_SELECT_REG, test_select);
-
- soft_rst2 &= ~((1 << XGXS_RST_N_LBN) | (1 << SERDES_RST_N_LBN));
- mdio_clause45_write(efx, phy, MDIO_MMD_PCS,
- PCS_SOFT_RST2_REG, soft_rst2);
-
- clk_ctrl &= ~(1 << PLL312_RST_N_LBN);
- mdio_clause45_write(efx, phy, MDIO_MMD_PCS,
- PCS_CLOCK_CTRL_REG, clk_ctrl);
- udelay(10);
-
- /* Remove reset */
- clk_ctrl |= (1 << PLL312_RST_N_LBN);
- mdio_clause45_write(efx, phy, MDIO_MMD_PCS,
- PCS_CLOCK_CTRL_REG, clk_ctrl);
- udelay(10);
-
- soft_rst2 |= ((1 << XGXS_RST_N_LBN) | (1 << SERDES_RST_N_LBN));
- mdio_clause45_write(efx, phy, MDIO_MMD_PCS,
- PCS_SOFT_RST2_REG, soft_rst2);
- udelay(10);
-
- test_select |= (1 << CLK312_EN_LBN);
- mdio_clause45_write(efx, phy, MDIO_MMD_PCS,
- PCS_TEST_SELECT_REG, test_select);
- udelay(10);
-}
-
static int tenxpress_phy_test(struct efx_nic *efx)
{
/* BIST is automatically run after a special software reset */
@@ -488,7 +438,6 @@ struct efx_phy_operations falcon_tenxpress_phy_ops = {
.check_hw = tenxpress_phy_check_hw,
.fini = tenxpress_phy_fini,
.clear_interrupt = tenxpress_phy_clear_interrupt,
- .reset_xaui = tenxpress_reset_xaui,
.test = tenxpress_phy_test,
.mmds = TENXPRESS_REQUIRED_DEVS,
.loopbacks = TENXPRESS_LOOPBACKS,
diff --git a/drivers/net/sfc/workarounds.h b/drivers/net/sfc/workarounds.h
index a824f59..fa7b49d 100644
--- a/drivers/net/sfc/workarounds.h
+++ b/drivers/net/sfc/workarounds.h
@@ -24,8 +24,6 @@
#define EFX_WORKAROUND_7575 EFX_WORKAROUND_ALWAYS
/* TX pkt parser problem with <= 16 byte TXes */
#define EFX_WORKAROUND_9141 EFX_WORKAROUND_ALWAYS
-/* XGXS and XAUI reset sequencing in SW */
-#define EFX_WORKAROUND_9388 EFX_WORKAROUND_ALWAYS
/* Low rate CRC errors require XAUI reset */
#define EFX_WORKAROUND_10750 EFX_WORKAROUND_ALWAYS
/* TX_EV_PKT_ERR can be caused by a dangling TX descriptor
diff --git a/drivers/net/sfc/xfp_phy.c b/drivers/net/sfc/xfp_phy.c
index f6edecc..276151d 100644
--- a/drivers/net/sfc/xfp_phy.c
+++ b/drivers/net/sfc/xfp_phy.c
@@ -165,7 +165,6 @@ struct efx_phy_operations falcon_xfp_phy_ops = {
.check_hw = xfp_phy_check_hw,
.fini = xfp_phy_fini,
.clear_interrupt = xfp_phy_clear_interrupt,
- .reset_xaui = efx_port_dummy_op_void,
.mmds = XFP_REQUIRED_DEVS,
.loopbacks = XFP_LOOPBACKS,
};
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 44/52] sfc: Serialise tenxpress_special_reset() with statistics fetches
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (41 preceding siblings ...)
2008-09-01 11:49 ` [PATCH 43/52] sfc: Remove workaround for old firmware bug Ben Hutchings
@ 2008-09-01 11:49 ` Ben Hutchings
2008-09-01 11:49 ` [PATCH 45/52] sfc: Don't use EFX_OWORD_FIELD on an event (64-bit, quad-word) Ben Hutchings
` (8 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:49 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
On some boards 10Xpress feeds a 156 MHz clock to the Falcon XMAC. MAC
statistics DMA can fail while this clock is stopped during a PHY reset.
From: Steve Hodgson <shodgson@solarflare.com>
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/tenxpress.c | 15 ++++++++++-----
1 files changed, 10 insertions(+), 5 deletions(-)
diff --git a/drivers/net/sfc/tenxpress.c b/drivers/net/sfc/tenxpress.c
index 77e7f3a..2ad3d8d 100644
--- a/drivers/net/sfc/tenxpress.c
+++ b/drivers/net/sfc/tenxpress.c
@@ -214,7 +214,10 @@ static int tenxpress_special_reset(struct efx_nic *efx)
{
int rc, reg;
- EFX_TRACE(efx, "%s\n", __func__);
+ /* The XGMAC clock is driven from the SFC7101/SFT9001 312MHz clock, so
+ * a special software reset can glitch the XGMAC sufficiently for stats
+ * requests to fail. Since we don't ofen special_reset, just lock. */
+ spin_lock(&efx->stats_lock);
/* Initiate reset */
reg = mdio_clause45_read(efx, efx->mii.phy_id,
@@ -223,20 +226,22 @@ static int tenxpress_special_reset(struct efx_nic *efx)
mdio_clause45_write(efx, efx->mii.phy_id, MDIO_MMD_PMAPMD,
PMA_PMD_EXT_CTRL_REG, reg);
- msleep(200);
+ mdelay(200);
/* Wait for the blocks to come out of reset */
rc = mdio_clause45_wait_reset_mmds(efx,
TENXPRESS_REQUIRED_DEVS);
if (rc < 0)
- return rc;
+ goto unlock;
/* Try and reconfigure the device */
rc = tenxpress_init(efx);
if (rc < 0)
- return rc;
+ goto unlock;
- return 0;
+unlock:
+ spin_unlock(&efx->stats_lock);
+ return rc;
}
static void tenxpress_set_bad_lp(struct efx_nic *efx, bool bad_lp)
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 45/52] sfc: Don't use EFX_OWORD_FIELD on an event (64-bit, quad-word)
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (42 preceding siblings ...)
2008-09-01 11:49 ` [PATCH 44/52] sfc: Serialise tenxpress_special_reset() with statistics fetches Ben Hutchings
@ 2008-09-01 11:49 ` Ben Hutchings
2008-09-01 11:49 ` [PATCH 46/52] sfc: Make queue flushes more reliable Ben Hutchings
` (7 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:49 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
From: Steve Hodgson <shodgson@solarflare.com>
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/falcon.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c
index 636fe82..ad192f8 100644
--- a/drivers/net/sfc/falcon.c
+++ b/drivers/net/sfc/falcon.c
@@ -1007,7 +1007,7 @@ static void falcon_handle_global_event(struct efx_channel *channel,
is_phy_event = true;
if ((falcon_rev(efx) >= FALCON_REV_B0) &&
- EFX_OWORD_FIELD(*event, XG_MNT_INTR_B0))
+ EFX_QWORD_FIELD(*event, XG_MNT_INTR_B0))
is_phy_event = true;
if (is_phy_event) {
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 46/52] sfc: Make queue flushes more reliable
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (43 preceding siblings ...)
2008-09-01 11:49 ` [PATCH 45/52] sfc: Don't use EFX_OWORD_FIELD on an event (64-bit, quad-word) Ben Hutchings
@ 2008-09-01 11:49 ` Ben Hutchings
2008-09-01 11:49 ` [PATCH 47/52] sfc: Don't include net_driver.h from falcon_io.h Ben Hutchings
` (6 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:49 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
Increase the potential retry count for RX flushes from 5 to 100.
Stop polling the RX_DESC_PTR_TBL to infer that a flush might have
happened. Instead absolutely rely on the flush events, unless bug 7803
applies (Falcon rev A only).
To keep things quick, request flushes for every TX and RX queue up
front, and match up the events to requests.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/efx.c | 15 ++--
drivers/net/sfc/falcon.c | 247 ++++++++++++++++++++++--------------------
drivers/net/sfc/falcon.h | 1 +
drivers/net/sfc/net_driver.h | 4 +
4 files changed, 141 insertions(+), 126 deletions(-)
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c
index ef72413..8e699a4 100644
--- a/drivers/net/sfc/efx.c
+++ b/drivers/net/sfc/efx.c
@@ -445,10 +445,17 @@ static void efx_fini_channels(struct efx_nic *efx)
struct efx_channel *channel;
struct efx_tx_queue *tx_queue;
struct efx_rx_queue *rx_queue;
+ int rc;
EFX_ASSERT_RESET_SERIALISED(efx);
BUG_ON(efx->port_enabled);
+ rc = falcon_flush_queues(efx);
+ if (rc)
+ EFX_ERR(efx, "failed to flush queues\n");
+ else
+ EFX_LOG(efx, "successfully flushed all queues\n");
+
efx_for_each_channel(channel, efx) {
EFX_LOG(channel->efx, "shut down chan %d\n", channel->channel);
@@ -456,13 +463,6 @@ static void efx_fini_channels(struct efx_nic *efx)
efx_fini_rx_queue(rx_queue);
efx_for_each_channel_tx_queue(tx_queue, channel)
efx_fini_tx_queue(tx_queue);
- }
-
- /* Do the event queues last so that we can handle flush events
- * for all DMA queues. */
- efx_for_each_channel(channel, efx) {
- EFX_LOG(channel->efx, "shut down evq %d\n", channel->channel);
-
efx_fini_eventq(channel);
}
}
@@ -1092,7 +1092,6 @@ static void efx_stop_all(struct efx_nic *efx)
/* Isolate the MAC from the TX and RX engines, so that queue
* flushes will complete in a timely fashion. */
- falcon_deconfigure_mac_wrapper(efx);
falcon_drain_tx_fifo(efx);
/* Stop the kernel transmit interface late, so the watchdog
diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c
index ad192f8..70c681e 100644
--- a/drivers/net/sfc/falcon.c
+++ b/drivers/net/sfc/falcon.c
@@ -108,10 +108,10 @@ MODULE_PARM_DESC(rx_xon_thresh_bytes, "RX fifo XON threshold");
/* Max number of internal errors. After this resets will not be performed */
#define FALCON_MAX_INT_ERRORS 4
-/* Maximum period that we wait for flush events. If the flush event
- * doesn't arrive in this period of time then we check if the queue
- * was disabled anyway. */
-#define FALCON_FLUSH_TIMEOUT 10 /* 10ms */
+/* We poll for events every FLUSH_INTERVAL ms, and check FLUSH_POLL_COUNT times
+ */
+#define FALCON_FLUSH_INTERVAL 10
+#define FALCON_FLUSH_POLL_COUNT 100
/**************************************************************************
*
@@ -452,6 +452,8 @@ void falcon_init_tx(struct efx_tx_queue *tx_queue)
efx_oword_t tx_desc_ptr;
struct efx_nic *efx = tx_queue->efx;
+ tx_queue->flushed = false;
+
/* Pin TX descriptor ring */
falcon_init_special_buffer(efx, &tx_queue->txd);
@@ -492,60 +494,16 @@ void falcon_init_tx(struct efx_tx_queue *tx_queue)
}
}
-static int falcon_flush_tx_queue(struct efx_tx_queue *tx_queue)
+static void falcon_flush_tx_queue(struct efx_tx_queue *tx_queue)
{
struct efx_nic *efx = tx_queue->efx;
- struct efx_channel *channel = &efx->channel[0];
efx_oword_t tx_flush_descq;
- unsigned int read_ptr, i;
/* Post a flush command */
EFX_POPULATE_OWORD_2(tx_flush_descq,
TX_FLUSH_DESCQ_CMD, 1,
TX_FLUSH_DESCQ, tx_queue->queue);
falcon_write(efx, &tx_flush_descq, TX_FLUSH_DESCQ_REG_KER);
- msleep(FALCON_FLUSH_TIMEOUT);
-
- if (EFX_WORKAROUND_7803(efx))
- return 0;
-
- /* Look for a flush completed event */
- read_ptr = channel->eventq_read_ptr;
- for (i = 0; i < FALCON_EVQ_SIZE; ++i) {
- efx_qword_t *event = falcon_event(channel, read_ptr);
- int ev_code, ev_sub_code, ev_queue;
- if (!falcon_event_present(event))
- break;
-
- ev_code = EFX_QWORD_FIELD(*event, EV_CODE);
- ev_sub_code = EFX_QWORD_FIELD(*event, DRIVER_EV_SUB_CODE);
- ev_queue = EFX_QWORD_FIELD(*event, DRIVER_EV_TX_DESCQ_ID);
- if ((ev_sub_code == TX_DESCQ_FLS_DONE_EV_DECODE) &&
- (ev_queue == tx_queue->queue)) {
- EFX_LOG(efx, "tx queue %d flush command succesful\n",
- tx_queue->queue);
- return 0;
- }
-
- read_ptr = (read_ptr + 1) & FALCON_EVQ_MASK;
- }
-
- if (EFX_WORKAROUND_11557(efx)) {
- efx_oword_t reg;
- bool enabled;
-
- falcon_read_table(efx, ®, efx->type->txd_ptr_tbl_base,
- tx_queue->queue);
- enabled = EFX_OWORD_FIELD(reg, TX_DESCQ_EN);
- if (!enabled) {
- EFX_LOG(efx, "tx queue %d disabled without a "
- "flush event seen\n", tx_queue->queue);
- return 0;
- }
- }
-
- EFX_ERR(efx, "tx queue %d flush command timed out\n", tx_queue->queue);
- return -ETIMEDOUT;
}
void falcon_fini_tx(struct efx_tx_queue *tx_queue)
@@ -553,9 +511,8 @@ void falcon_fini_tx(struct efx_tx_queue *tx_queue)
struct efx_nic *efx = tx_queue->efx;
efx_oword_t tx_desc_ptr;
- /* Stop the hardware using the queue */
- if (falcon_flush_tx_queue(tx_queue))
- EFX_ERR(efx, "failed to flush tx queue %d\n", tx_queue->queue);
+ /* The queue should have been flushed */
+ WARN_ON(!tx_queue->flushed);
/* Remove TX descriptor ring from card */
EFX_ZERO_OWORD(tx_desc_ptr);
@@ -643,6 +600,8 @@ void falcon_init_rx(struct efx_rx_queue *rx_queue)
rx_queue->queue, rx_queue->rxd.index,
rx_queue->rxd.index + rx_queue->rxd.entries - 1);
+ rx_queue->flushed = false;
+
/* Pin RX descriptor ring */
falcon_init_special_buffer(efx, &rx_queue->rxd);
@@ -663,11 +622,9 @@ void falcon_init_rx(struct efx_rx_queue *rx_queue)
rx_queue->queue);
}
-static int falcon_flush_rx_queue(struct efx_rx_queue *rx_queue)
+static void falcon_flush_rx_queue(struct efx_rx_queue *rx_queue)
{
struct efx_nic *efx = rx_queue->efx;
- struct efx_channel *channel = &efx->channel[0];
- unsigned int read_ptr, i;
efx_oword_t rx_flush_descq;
/* Post a flush command */
@@ -675,76 +632,15 @@ static int falcon_flush_rx_queue(struct efx_rx_queue *rx_queue)
RX_FLUSH_DESCQ_CMD, 1,
RX_FLUSH_DESCQ, rx_queue->queue);
falcon_write(efx, &rx_flush_descq, RX_FLUSH_DESCQ_REG_KER);
- msleep(FALCON_FLUSH_TIMEOUT);
-
- if (EFX_WORKAROUND_7803(efx))
- return 0;
-
- /* Look for a flush completed event */
- read_ptr = channel->eventq_read_ptr;
- for (i = 0; i < FALCON_EVQ_SIZE; ++i) {
- efx_qword_t *event = falcon_event(channel, read_ptr);
- int ev_code, ev_sub_code, ev_queue;
- bool ev_failed;
- if (!falcon_event_present(event))
- break;
-
- ev_code = EFX_QWORD_FIELD(*event, EV_CODE);
- ev_sub_code = EFX_QWORD_FIELD(*event, DRIVER_EV_SUB_CODE);
- ev_queue = EFX_QWORD_FIELD(*event, DRIVER_EV_RX_DESCQ_ID);
- ev_failed = EFX_QWORD_FIELD(*event, DRIVER_EV_RX_FLUSH_FAIL);
-
- if ((ev_sub_code == RX_DESCQ_FLS_DONE_EV_DECODE) &&
- (ev_queue == rx_queue->queue)) {
- if (ev_failed) {
- EFX_INFO(efx, "rx queue %d flush command "
- "failed\n", rx_queue->queue);
- return -EAGAIN;
- } else {
- EFX_LOG(efx, "rx queue %d flush command "
- "succesful\n", rx_queue->queue);
- return 0;
- }
- }
-
- read_ptr = (read_ptr + 1) & FALCON_EVQ_MASK;
- }
-
- if (EFX_WORKAROUND_11557(efx)) {
- efx_oword_t reg;
- bool enabled;
-
- falcon_read_table(efx, ®, efx->type->rxd_ptr_tbl_base,
- rx_queue->queue);
- enabled = EFX_OWORD_FIELD(reg, RX_DESCQ_EN);
- if (!enabled) {
- EFX_LOG(efx, "rx queue %d disabled without a "
- "flush event seen\n", rx_queue->queue);
- return 0;
- }
- }
-
- EFX_ERR(efx, "rx queue %d flush command timed out\n", rx_queue->queue);
- return -ETIMEDOUT;
}
void falcon_fini_rx(struct efx_rx_queue *rx_queue)
{
efx_oword_t rx_desc_ptr;
struct efx_nic *efx = rx_queue->efx;
- int i, rc;
- /* Try and flush the rx queue. This may need to be repeated */
- for (i = 0; i < 5; i++) {
- rc = falcon_flush_rx_queue(rx_queue);
- if (rc == -EAGAIN)
- continue;
- break;
- }
- if (rc) {
- EFX_ERR(efx, "failed to flush rx queue %d\n", rx_queue->queue);
- efx_schedule_reset(efx, RESET_TYPE_INVISIBLE);
- }
+ /* The queue should already have been flushed */
+ WARN_ON(!rx_queue->flushed);
/* Remove RX descriptor ring from card */
EFX_ZERO_OWORD(rx_desc_ptr);
@@ -1255,6 +1151,121 @@ void falcon_generate_test_event(struct efx_channel *channel, unsigned int magic)
falcon_generate_event(channel, &test_event);
}
+/**************************************************************************
+ *
+ * Flush handling
+ *
+ **************************************************************************/
+
+
+static void falcon_poll_flush_events(struct efx_nic *efx)
+{
+ struct efx_channel *channel = &efx->channel[0];
+ struct efx_tx_queue *tx_queue;
+ struct efx_rx_queue *rx_queue;
+ unsigned int read_ptr, i;
+
+ read_ptr = channel->eventq_read_ptr;
+ for (i = 0; i < FALCON_EVQ_SIZE; ++i) {
+ efx_qword_t *event = falcon_event(channel, read_ptr);
+ int ev_code, ev_sub_code, ev_queue;
+ bool ev_failed;
+ if (!falcon_event_present(event))
+ break;
+
+ ev_code = EFX_QWORD_FIELD(*event, EV_CODE);
+ if (ev_code != DRIVER_EV_DECODE)
+ continue;
+
+ ev_sub_code = EFX_QWORD_FIELD(*event, DRIVER_EV_SUB_CODE);
+ switch (ev_sub_code) {
+ case TX_DESCQ_FLS_DONE_EV_DECODE:
+ ev_queue = EFX_QWORD_FIELD(*event,
+ DRIVER_EV_TX_DESCQ_ID);
+ if (ev_queue < EFX_TX_QUEUE_COUNT) {
+ tx_queue = efx->tx_queue + ev_queue;
+ tx_queue->flushed = true;
+ }
+ break;
+ case RX_DESCQ_FLS_DONE_EV_DECODE:
+ ev_queue = EFX_QWORD_FIELD(*event,
+ DRIVER_EV_RX_DESCQ_ID);
+ ev_failed = EFX_QWORD_FIELD(*event,
+ DRIVER_EV_RX_FLUSH_FAIL);
+ if (ev_queue < efx->n_rx_queues) {
+ rx_queue = efx->rx_queue + ev_queue;
+
+ /* retry the rx flush */
+ if (ev_failed)
+ falcon_flush_rx_queue(rx_queue);
+ else
+ rx_queue->flushed = true;
+ }
+ break;
+ }
+
+ read_ptr = (read_ptr + 1) & FALCON_EVQ_MASK;
+ }
+}
+
+/* Handle tx and rx flushes at the same time, since they run in
+ * parallel in the hardware and there's no reason for us to
+ * serialise them */
+int falcon_flush_queues(struct efx_nic *efx)
+{
+ struct efx_rx_queue *rx_queue;
+ struct efx_tx_queue *tx_queue;
+ int i;
+ bool outstanding;
+
+ /* Issue flush requests */
+ efx_for_each_tx_queue(tx_queue, efx) {
+ tx_queue->flushed = false;
+ falcon_flush_tx_queue(tx_queue);
+ }
+ efx_for_each_rx_queue(rx_queue, efx) {
+ rx_queue->flushed = false;
+ falcon_flush_rx_queue(rx_queue);
+ }
+
+ /* Poll the evq looking for flush completions. Since we're not pushing
+ * any more rx or tx descriptors at this point, we're in no danger of
+ * overflowing the evq whilst we wait */
+ for (i = 0; i < FALCON_FLUSH_POLL_COUNT; ++i) {
+ msleep(FALCON_FLUSH_INTERVAL);
+ falcon_poll_flush_events(efx);
+
+ /* Check if every queue has been succesfully flushed */
+ outstanding = false;
+ efx_for_each_tx_queue(tx_queue, efx)
+ outstanding |= !tx_queue->flushed;
+ efx_for_each_rx_queue(rx_queue, efx)
+ outstanding |= !rx_queue->flushed;
+ if (!outstanding)
+ return 0;
+ }
+
+ /* Mark the queues as all flushed. We're going to return failure
+ * leading to a reset, or fake up success anyway. "flushed" now
+ * indicates that we tried to flush. */
+ efx_for_each_tx_queue(tx_queue, efx) {
+ if (!tx_queue->flushed)
+ EFX_ERR(efx, "tx queue %d flush command timed out\n",
+ tx_queue->queue);
+ tx_queue->flushed = true;
+ }
+ efx_for_each_rx_queue(rx_queue, efx) {
+ if (!rx_queue->flushed)
+ EFX_ERR(efx, "rx queue %d flush command timed out\n",
+ rx_queue->queue);
+ rx_queue->flushed = true;
+ }
+
+ if (EFX_WORKAROUND_7803(efx))
+ return 0;
+
+ return -ETIMEDOUT;
+}
/**************************************************************************
*
diff --git a/drivers/net/sfc/falcon.h b/drivers/net/sfc/falcon.h
index 30d61e4..be025ba 100644
--- a/drivers/net/sfc/falcon.h
+++ b/drivers/net/sfc/falcon.h
@@ -86,6 +86,7 @@ extern void falcon_fini_interrupt(struct efx_nic *efx);
extern int falcon_probe_nic(struct efx_nic *efx);
extern int falcon_probe_resources(struct efx_nic *efx);
extern int falcon_init_nic(struct efx_nic *efx);
+extern int falcon_flush_queues(struct efx_nic *efx);
extern int falcon_reset_hw(struct efx_nic *efx, enum reset_type method);
extern void falcon_remove_resources(struct efx_nic *efx);
extern void falcon_remove_nic(struct efx_nic *efx);
diff --git a/drivers/net/sfc/net_driver.h b/drivers/net/sfc/net_driver.h
index be3d2ba..868ad1e 100644
--- a/drivers/net/sfc/net_driver.h
+++ b/drivers/net/sfc/net_driver.h
@@ -160,6 +160,7 @@ struct efx_tx_buffer {
* @channel: The associated channel
* @buffer: The software buffer ring
* @txd: The hardware descriptor ring
+ * @flushed: Used when handling queue flushing
* @read_count: Current read pointer.
* This is the number of buffers that have been removed from both rings.
* @stopped: Stopped count.
@@ -192,6 +193,7 @@ struct efx_tx_queue {
struct efx_nic *nic;
struct efx_tx_buffer *buffer;
struct efx_special_buffer txd;
+ bool flushed;
/* Members used mainly on the completion path */
unsigned int read_count ____cacheline_aligned_in_smp;
@@ -260,6 +262,7 @@ struct efx_rx_buffer {
* the remaining space in the allocation.
* @buf_dma_addr: Page's DMA address.
* @buf_data: Page's host address.
+ * @flushed: Use when handling queue flushing
*/
struct efx_rx_queue {
struct efx_nic *efx;
@@ -285,6 +288,7 @@ struct efx_rx_queue {
struct page *buf_page;
dma_addr_t buf_dma_addr;
char *buf_data;
+ bool flushed;
};
/**
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 47/52] sfc: Don't include net_driver.h from falcon_io.h
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (44 preceding siblings ...)
2008-09-01 11:49 ` [PATCH 46/52] sfc: Make queue flushes more reliable Ben Hutchings
@ 2008-09-01 11:49 ` Ben Hutchings
2008-09-01 11:50 ` [PATCH 48/52] sfc: Stop generating bogus events in tenxpress_check_hw() Ben Hutchings
` (5 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:49 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
From: Steve Hodgson <shodgson@solarflare.com>
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/falcon_io.h | 1 -
1 files changed, 0 insertions(+), 1 deletions(-)
diff --git a/drivers/net/sfc/falcon_io.h b/drivers/net/sfc/falcon_io.h
index 6670cdf..c16da31 100644
--- a/drivers/net/sfc/falcon_io.h
+++ b/drivers/net/sfc/falcon_io.h
@@ -13,7 +13,6 @@
#include <linux/io.h>
#include <linux/spinlock.h>
-#include "net_driver.h"
/**************************************************************************
*
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 48/52] sfc: Stop generating bogus events in tenxpress_check_hw()
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (45 preceding siblings ...)
2008-09-01 11:49 ` [PATCH 47/52] sfc: Don't include net_driver.h from falcon_io.h Ben Hutchings
@ 2008-09-01 11:50 ` Ben Hutchings
2008-09-01 11:50 ` [PATCH 49/52] sfc: Insert read memory barrier after checking MAC statistics flag Ben Hutchings
` (4 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:50 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
mdio_clause45_links_ok() correctly checks efx_phy_mode_disabled(), so
tenxpress_link_ok() doesn't need to.
From: Steve Hodgson <shodgson@solarflare.com>
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/tenxpress.c | 3 +--
1 files changed, 1 insertions(+), 2 deletions(-)
diff --git a/drivers/net/sfc/tenxpress.c b/drivers/net/sfc/tenxpress.c
index 2ad3d8d..d507c93 100644
--- a/drivers/net/sfc/tenxpress.c
+++ b/drivers/net/sfc/tenxpress.c
@@ -377,8 +377,7 @@ static int tenxpress_phy_check_hw(struct efx_nic *efx)
struct tenxpress_phy_data *phy_data = efx->phy_data;
bool link_ok;
- link_ok = (phy_data->phy_mode == PHY_MODE_NORMAL &&
- tenxpress_link_ok(efx, true));
+ link_ok = tenxpress_link_ok(efx, true);
if (link_ok != efx->link_up)
falcon_xmac_sim_phy_event(efx);
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 49/52] sfc: Insert read memory barrier after checking MAC statistics flag
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (46 preceding siblings ...)
2008-09-01 11:50 ` [PATCH 48/52] sfc: Stop generating bogus events in tenxpress_check_hw() Ben Hutchings
@ 2008-09-01 11:50 ` Ben Hutchings
2008-09-01 11:50 ` [PATCH 50/52] sfc: Disable interrupts after a fatal interrupt occurs until reset Ben Hutchings
` (3 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:50 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
This prevents speculative reading of the statistics before the
completion flag.
From: Neil Turton <nturton@solarflare.com>
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/falcon.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c
index 70c681e..3a5289f 100644
--- a/drivers/net/sfc/falcon.c
+++ b/drivers/net/sfc/falcon.c
@@ -1953,8 +1953,10 @@ int falcon_dma_stats(struct efx_nic *efx, unsigned int done_offset)
/* Wait for transfer to complete */
for (i = 0; i < 400; i++) {
- if (*(volatile u32 *)dma_done == FALCON_STATS_DONE)
+ if (*(volatile u32 *)dma_done == FALCON_STATS_DONE) {
+ rmb(); /* Ensure the stats are valid. */
return 0;
+ }
udelay(10);
}
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 50/52] sfc: Disable interrupts after a fatal interrupt occurs until reset
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (47 preceding siblings ...)
2008-09-01 11:50 ` [PATCH 49/52] sfc: Insert read memory barrier after checking MAC statistics flag Ben Hutchings
@ 2008-09-01 11:50 ` Ben Hutchings
2008-09-01 11:50 ` [PATCH 51/52] sfc: Remove obsolete comment about PCI modes Ben Hutchings
` (2 subsequent siblings)
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:50 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
This should avoid an interrupt storm, which has been observed in the
field with one faulty board.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/falcon.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c
index 3a5289f..d30c938 100644
--- a/drivers/net/sfc/falcon.c
+++ b/drivers/net/sfc/falcon.c
@@ -1374,10 +1374,11 @@ static irqreturn_t falcon_fatal_interrupt(struct efx_nic *efx)
EFX_OWORD_FMT "\n", EFX_OWORD_VAL(reg));
}
- /* Disable DMA bus mastering on both devices */
+ /* Disable both devices */
pci_disable_device(efx->pci_dev);
if (FALCON_IS_DUAL_FUNC(efx))
pci_disable_device(nic_data->pci_dev2);
+ falcon_disable_interrupts(efx);
if (++n_int_errors < FALCON_MAX_INT_ERRORS) {
EFX_ERR(efx, "SYSTEM ERROR - reset scheduled\n");
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 51/52] sfc: Remove obsolete comment about PCI modes
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (48 preceding siblings ...)
2008-09-01 11:50 ` [PATCH 50/52] sfc: Disable interrupts after a fatal interrupt occurs until reset Ben Hutchings
@ 2008-09-01 11:50 ` Ben Hutchings
2008-09-01 11:50 ` [PATCH 52/52] sfc: Use CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS where appropriate Ben Hutchings
2008-09-03 14:07 ` [PATCH 41/52] sfc: Add check for memory allocation failure in falcon_probe_nic() Ben Hutchings
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:50 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/falcon_hwdefs.h | 1 -
1 files changed, 0 insertions(+), 1 deletions(-)
diff --git a/drivers/net/sfc/falcon_hwdefs.h b/drivers/net/sfc/falcon_hwdefs.h
index e319fd6..5d584b0 100644
--- a/drivers/net/sfc/falcon_hwdefs.h
+++ b/drivers/net/sfc/falcon_hwdefs.h
@@ -117,7 +117,6 @@
#define SF_PRST_WIDTH 1
#define EE_PRST_LBN 8
#define EE_PRST_WIDTH 1
-/* See pic_mode_t for decoding of this field */
/* These bit definitions are extrapolated from the list of numerical
* values for STRAP_PINS.
*/
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 52/52] sfc: Use CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS where appropriate
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (49 preceding siblings ...)
2008-09-01 11:50 ` [PATCH 51/52] sfc: Remove obsolete comment about PCI modes Ben Hutchings
@ 2008-09-01 11:50 ` Ben Hutchings
2008-09-03 14:07 ` [PATCH 41/52] sfc: Add check for memory allocation failure in falcon_probe_nic() Ben Hutchings
51 siblings, 0 replies; 55+ messages in thread
From: Ben Hutchings @ 2008-09-01 11:50 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
For some buffers we use a starting offset of either NET_IP_ALIGN or 0
depending on whether we believe the architecture supports efficient
access to unaligned words. There is now a config macro specifying
whether this is the case, so check that rather than checking for
specific architectures.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/net_driver.h | 2 +-
drivers/net/sfc/tx.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/sfc/net_driver.h b/drivers/net/sfc/net_driver.h
index 868ad1e..cdb11fa 100644
--- a/drivers/net/sfc/net_driver.h
+++ b/drivers/net/sfc/net_driver.h
@@ -474,7 +474,7 @@ enum nic_state {
* This is the equivalent of NET_IP_ALIGN [which controls the alignment
* of the skb->head for hardware DMA].
*/
-#if defined(__i386__) || defined(__x86_64__)
+#ifdef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
#define EFX_PAGE_IP_ALIGN 0
#else
#define EFX_PAGE_IP_ALIGN NET_IP_ALIGN
diff --git a/drivers/net/sfc/tx.c b/drivers/net/sfc/tx.c
index cdee7c2..da3e9ff 100644
--- a/drivers/net/sfc/tx.c
+++ b/drivers/net/sfc/tx.c
@@ -516,7 +516,7 @@ void efx_remove_tx_queue(struct efx_tx_queue *tx_queue)
/* Number of bytes inserted at the start of a TSO header buffer,
* similar to NET_IP_ALIGN.
*/
-#if defined(__i386__) || defined(__x86_64__)
+#ifdef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
#define TSOH_OFFSET 0
#else
#define TSOH_OFFSET NET_IP_ALIGN
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread* [PATCH 41/52] sfc: Add check for memory allocation failure in falcon_probe_nic()
2008-09-01 11:16 [PATCH 00/52] sfc: Changes for 2.6.28 Ben Hutchings
` (50 preceding siblings ...)
2008-09-01 11:50 ` [PATCH 52/52] sfc: Use CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS where appropriate Ben Hutchings
@ 2008-09-03 14:07 ` Ben Hutchings
2008-09-13 19:29 ` Jeff Garzik
51 siblings, 1 reply; 55+ messages in thread
From: Ben Hutchings @ 2008-09-03 14:07 UTC (permalink / raw)
To: Jeff Garzik; +Cc: netdev, linux-net-drivers
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
drivers/net/sfc/falcon.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c
index e0c0b23..636fe82 100644
--- a/drivers/net/sfc/falcon.c
+++ b/drivers/net/sfc/falcon.c
@@ -2758,6 +2758,8 @@ int falcon_probe_nic(struct efx_nic *efx)
/* Allocate storage for hardware specific data */
nic_data = kzalloc(sizeof(*nic_data), GFP_KERNEL);
+ if (!nic_data)
+ return -ENOMEM;
efx->nic_data = nic_data;
/* Determine number of ports etc. */
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply related [flat|nested] 55+ messages in thread