* [Intel-wired-lan] [next PATCH 1/3] igb: Enable the ethtool interface fo Rx filter
2015-12-24 2:44 [Intel-wired-lan] [next PATCH 0/3] igb: add Rx ethertype filter and VLAN priority filter Gangfeng
@ 2015-12-24 2:45 ` Gangfeng
2015-12-24 22:02 ` Jeff Kirsher
2015-12-24 2:45 ` [Intel-wired-lan] [next PATCH 2/3] igb: add support of ethertype RX filters Gangfeng
2015-12-24 2:45 ` [Intel-wired-lan] [next PATCH 3/3] igb: add support of Rx VLAN priority filters Gangfeng
2 siblings, 1 reply; 5+ messages in thread
From: Gangfeng @ 2015-12-24 2:45 UTC (permalink / raw)
To: intel-wired-lan
From: Gangfeng Huang <gangfeng.huang@ni.com>
This patch is meant to allow for nfc to insert and remove Rx filter
by ethtool. Ethtool interface has it's own rules manager
Show all filters:
$ ethtool -n eth0
4 RX rings available
Total 2 rules
Signed-off-by: Ruhao Gao <ruhao.gao@ni.com>
Signed-off-by: Gangfeng Huang <gangfeng.huang@ni.com>
---
drivers/net/ethernet/intel/igb/igb.h | 31 +++++
drivers/net/ethernet/intel/igb/igb_ethtool.c | 193 ++++++++++++++++++++++++++
drivers/net/ethernet/intel/igb/igb_main.c | 57 ++++++++
3 files changed, 281 insertions(+)
diff --git a/drivers/net/ethernet/intel/igb/igb.h b/drivers/net/ethernet/intel/igb/igb.h
index 1a2f1cc..d4ad3d7 100644
--- a/drivers/net/ethernet/intel/igb/igb.h
+++ b/drivers/net/ethernet/intel/igb/igb.h
@@ -348,6 +348,19 @@ struct hwmon_buff {
#define IGB_N_SDP 4
#define IGB_RETA_SIZE 128
+enum igb_filter_match_flags {
+ IGB_FILTER_FLAG_NONE = 0x0,
+};
+
+#define IGB_MAX_RXNFC_FILTERS 16
+
+struct igb_nfc_input {
+ /* Byte layout in order, all values with MSB first:
+ * match_flags - 1 byte
+ */
+ u8 match_flags;
+};
+
/* board specific private data structure */
struct igb_adapter {
unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
@@ -463,6 +476,19 @@ struct igb_adapter {
int copper_tries;
struct e1000_info ei;
u16 eee_advert;
+
+ /* rxnfc support */
+ struct hlist_head nfc_filter_list;
+ unsigned int nfc_filter_count;
+ /* lock for nfc filter */
+ spinlock_t nfc_lock;
+};
+
+struct igb_nfc_filter {
+ struct hlist_node nfc_node;
+ struct igb_nfc_input filter;
+ u16 sw_idx;
+ u16 action;
};
#define IGB_FLAG_HAS_MSI (1 << 0)
@@ -582,4 +608,9 @@ static inline struct netdev_queue *txring_txq(const struct igb_ring *tx_ring)
return netdev_get_tx_queue(tx_ring->netdev, tx_ring->queue_index);
}
+int igb_add_filter(struct igb_adapter *adapter,
+ struct igb_nfc_filter *input);
+int igb_erase_filter(struct igb_adapter *adapter,
+ struct igb_nfc_filter *input);
+
#endif /* _IGB_H_ */
diff --git a/drivers/net/ethernet/intel/igb/igb_ethtool.c b/drivers/net/ethernet/intel/igb/igb_ethtool.c
index 2529bc6..c091626 100644
--- a/drivers/net/ethernet/intel/igb/igb_ethtool.c
+++ b/drivers/net/ethernet/intel/igb/igb_ethtool.c
@@ -2421,6 +2421,48 @@ static int igb_get_ts_info(struct net_device *dev,
}
}
+static int igb_get_ethtool_nfc_entry(struct igb_adapter *adapter,
+ struct ethtool_rxnfc *cmd)
+{
+ struct ethtool_rx_flow_spec *fsp = &cmd->fs;
+ struct igb_nfc_filter *rule = NULL;
+
+ /* report total rule count */
+ cmd->data = IGB_MAX_RXNFC_FILTERS;
+
+ hlist_for_each_entry(rule, &adapter->nfc_filter_list, nfc_node) {
+ if (fsp->location <= rule->sw_idx)
+ break;
+ }
+
+ if (!rule || fsp->location != rule->sw_idx)
+ return -EINVAL;
+
+ return -EINVAL;
+}
+
+static int igb_get_ethtool_nfc_all(struct igb_adapter *adapter,
+ struct ethtool_rxnfc *cmd,
+ u32 *rule_locs)
+{
+ struct igb_nfc_filter *rule;
+ int cnt = 0;
+
+ /* report total rule count */
+ cmd->data = IGB_MAX_RXNFC_FILTERS;
+
+ hlist_for_each_entry(rule, &adapter->nfc_filter_list, nfc_node) {
+ if (cnt == cmd->rule_cnt)
+ return -EMSGSIZE;
+ rule_locs[cnt] = rule->sw_idx;
+ cnt++;
+ }
+
+ cmd->rule_cnt = cnt;
+
+ return 0;
+}
+
static int igb_get_rss_hash_opts(struct igb_adapter *adapter,
struct ethtool_rxnfc *cmd)
{
@@ -2474,6 +2516,16 @@ static int igb_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
cmd->data = adapter->num_rx_queues;
ret = 0;
break;
+ case ETHTOOL_GRXCLSRLCNT:
+ cmd->rule_cnt = adapter->nfc_filter_count;
+ ret = 0;
+ break;
+ case ETHTOOL_GRXCLSRULE:
+ ret = igb_get_ethtool_nfc_entry(adapter, cmd);
+ break;
+ case ETHTOOL_GRXCLSRLALL:
+ ret = igb_get_ethtool_nfc_all(adapter, cmd, rule_locs);
+ break;
case ETHTOOL_GRXFH:
ret = igb_get_rss_hash_opts(adapter, cmd);
break;
@@ -2588,6 +2640,142 @@ static int igb_set_rss_hash_opt(struct igb_adapter *adapter,
return 0;
}
+int igb_add_filter(struct igb_adapter *adapter, struct igb_nfc_filter *input)
+{
+ return -EINVAL;
+}
+
+int igb_erase_filter(struct igb_adapter *adapter, struct igb_nfc_filter *input)
+{
+ return 0;
+}
+
+static int igb_update_ethtool_nfc_entry(struct igb_adapter *adapter,
+ struct igb_nfc_filter *input,
+ u16 sw_idx)
+{
+ struct igb_nfc_filter *rule, *parent;
+ int err = -EINVAL;
+
+ parent = NULL;
+ rule = NULL;
+
+ hlist_for_each_entry(rule, &adapter->nfc_filter_list, nfc_node) {
+ /* hash found, or no matching entry */
+ if (rule->sw_idx >= sw_idx)
+ break;
+ parent = rule;
+ }
+
+ /* if there is an old rule occupying our place remove it */
+ if (rule && (rule->sw_idx == sw_idx)) {
+ if (!input)
+ err = igb_erase_filter(adapter, rule);
+
+ hlist_del(&rule->nfc_node);
+ kfree(rule);
+ adapter->nfc_filter_count--;
+ }
+
+ /* If no input this was a delete, err should be 0 if a rule was
+ * successfully found and removed from the list else -EINVAL
+ */
+ if (!input)
+ return err;
+
+ /* initialize node */
+ INIT_HLIST_NODE(&input->nfc_node);
+
+ /* add filter to the list */
+ if (parent)
+ hlist_add_behind(&parent->nfc_node, &input->nfc_node);
+ else
+ hlist_add_head(&input->nfc_node, &adapter->nfc_filter_list);
+
+ /* update counts */
+ adapter->nfc_filter_count++;
+
+ return 0;
+}
+
+static int igb_add_ethtool_nfc_entry(struct igb_adapter *adapter,
+ struct ethtool_rxnfc *cmd)
+{
+ struct net_device *netdev = adapter->netdev;
+ struct ethtool_rx_flow_spec *fsp =
+ (struct ethtool_rx_flow_spec *)&cmd->fs;
+ struct igb_nfc_filter *input, *rule;
+ int err = 0;
+
+ if (!(netdev->hw_features & NETIF_F_NTUPLE))
+ return -ENOTSUPP;
+
+ /* Don't allow programming if the action is a queue greater than
+ * the number of online Rx queues.
+ */
+ if ((fsp->ring_cookie == RX_CLS_FLOW_DISC) ||
+ (fsp->ring_cookie >= adapter->num_rx_queues)) {
+ dev_err(&adapter->pdev->dev, "ethtool -N: The specified action is invalid\n");
+ return -EINVAL;
+ }
+
+ /* Don't allow indexes to exist outside of available space */
+ if (fsp->location >= IGB_MAX_RXNFC_FILTERS) {
+ dev_err(&adapter->pdev->dev, "Location out of range\n");
+ return -EINVAL;
+ }
+
+ if ((fsp->flow_type & ~FLOW_EXT) != ETHER_FLOW)
+ return -EINVAL;
+
+ input = kzalloc(sizeof(*input), GFP_KERNEL);
+ if (!input)
+ return -ENOMEM;
+
+ input->action = fsp->ring_cookie;
+ input->sw_idx = fsp->location;
+
+ spin_lock(&adapter->nfc_lock);
+
+ hlist_for_each_entry(rule, &adapter->nfc_filter_list, nfc_node) {
+ if (!memcmp(&input->filter, &rule->filter,
+ sizeof(input->filter))) {
+ err = -EEXIST;
+ dev_err(&adapter->pdev->dev,
+ "ethtool: this filter is already set\n");
+ goto err_out_w_lock;
+ }
+ }
+
+ err = igb_add_filter(adapter, input);
+ if (err)
+ goto err_out_w_lock;
+
+ igb_update_ethtool_nfc_entry(adapter, input, input->sw_idx);
+
+ spin_unlock(&adapter->nfc_lock);
+ return 0;
+
+err_out_w_lock:
+ spin_unlock(&adapter->nfc_lock);
+ kfree(input);
+ return err;
+}
+
+static int igb_del_ethtool_nfc_entry(struct igb_adapter *adapter,
+ struct ethtool_rxnfc *cmd)
+{
+ struct ethtool_rx_flow_spec *fsp =
+ (struct ethtool_rx_flow_spec *)&cmd->fs;
+ int err;
+
+ spin_lock(&adapter->nfc_lock);
+ err = igb_update_ethtool_nfc_entry(adapter, NULL, fsp->location);
+ spin_unlock(&adapter->nfc_lock);
+
+ return err;
+}
+
static int igb_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
{
struct igb_adapter *adapter = netdev_priv(dev);
@@ -2597,6 +2785,11 @@ static int igb_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
case ETHTOOL_SRXFH:
ret = igb_set_rss_hash_opt(adapter, cmd);
break;
+ case ETHTOOL_SRXCLSRLINS:
+ ret = igb_add_ethtool_nfc_entry(adapter, cmd);
+ break;
+ case ETHTOOL_SRXCLSRLDEL:
+ ret = igb_del_ethtool_nfc_entry(adapter, cmd);
default:
break;
}
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index ea7b098..b87e8a2 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -176,6 +176,9 @@ static int igb_ndo_get_vf_config(struct net_device *netdev, int vf,
struct ifla_vf_info *ivi);
static void igb_check_vf_rate_limit(struct igb_adapter *);
+static void igb_nfc_filter_exit(struct igb_adapter *adapter);
+static void igb_nfc_filter_restore(struct igb_adapter *adapter);
+
#ifdef CONFIG_PCI_IOV
static int igb_vf_configure(struct igb_adapter *adapter, int vf);
static int igb_pci_enable_sriov(struct pci_dev *dev, int num_vfs);
@@ -1610,6 +1613,7 @@ static void igb_configure(struct igb_adapter *adapter)
igb_setup_mrqc(adapter);
igb_setup_rctl(adapter);
+ igb_nfc_filter_restore(adapter);
igb_configure_tx(adapter);
igb_configure_rx(adapter);
@@ -2055,6 +2059,21 @@ static int igb_set_features(struct net_device *netdev,
if (!(changed & NETIF_F_RXALL))
return 0;
+ if (!(features & NETIF_F_NTUPLE)) {
+ struct hlist_node *node2;
+ struct igb_nfc_filter *rule;
+
+ spin_lock(&adapter->nfc_lock);
+ hlist_for_each_entry_safe(rule, node2,
+ &adapter->nfc_filter_list, nfc_node) {
+ igb_erase_filter(adapter, rule);
+ hlist_del(&rule->nfc_node);
+ kfree(rule);
+ }
+ spin_unlock(&adapter->nfc_lock);
+ adapter->nfc_filter_count = 0;
+ }
+
netdev->features = features;
if (netif_running(netdev))
@@ -2382,6 +2401,16 @@ static int igb_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
netdev->features |= NETIF_F_SCTP_CSUM;
}
+ switch (hw->mac.type) {
+ case e1000_i210:
+ case e1000_i211:
+ case e1000_i350:
+ netdev->hw_features |= NETIF_F_NTUPLE;
+ break;
+ default:
+ break;
+ }
+
netdev->priv_flags |= IFF_UNICAST_FLT;
adapter->en_mng_pt = igb_enable_mng_pass_thru(hw);
@@ -2967,6 +2996,8 @@ static int igb_sw_init(struct igb_adapter *adapter)
adapter->min_frame_size = ETH_ZLEN + ETH_FCS_LEN;
spin_lock_init(&adapter->stats64_lock);
+ spin_lock_init(&adapter->nfc_lock);
+
#ifdef CONFIG_PCI_IOV
switch (hw->mac.type) {
case e1000_82576:
@@ -3153,6 +3184,8 @@ static int __igb_close(struct net_device *netdev, bool suspending)
igb_down(adapter);
igb_free_irq(adapter);
+ igb_nfc_filter_exit(adapter);
+
igb_free_all_tx_resources(adapter);
igb_free_all_rx_resources(adapter);
@@ -8104,4 +8137,28 @@ int igb_reinit_queues(struct igb_adapter *adapter)
return err;
}
+
+static void igb_nfc_filter_exit(struct igb_adapter *adapter)
+{
+ struct igb_nfc_filter *rule;
+
+ spin_lock(&adapter->nfc_lock);
+
+ hlist_for_each_entry(rule, &adapter->nfc_filter_list, nfc_node)
+ igb_erase_filter(adapter, rule);
+
+ spin_unlock(&adapter->nfc_lock);
+}
+
+static void igb_nfc_filter_restore(struct igb_adapter *adapter)
+{
+ struct igb_nfc_filter *rule;
+
+ spin_lock(&adapter->nfc_lock);
+
+ hlist_for_each_entry(rule, &adapter->nfc_filter_list, nfc_node)
+ igb_add_filter(adapter, rule);
+
+ spin_unlock(&adapter->nfc_lock);
+}
/* igb_main.c */
--
1.7.9.5
^ permalink raw reply related [flat|nested] 5+ messages in thread* [Intel-wired-lan] [next PATCH 2/3] igb: add support of ethertype RX filters
2015-12-24 2:44 [Intel-wired-lan] [next PATCH 0/3] igb: add Rx ethertype filter and VLAN priority filter Gangfeng
2015-12-24 2:45 ` [Intel-wired-lan] [next PATCH 1/3] igb: Enable the ethtool interface fo Rx filter Gangfeng
@ 2015-12-24 2:45 ` Gangfeng
2015-12-24 2:45 ` [Intel-wired-lan] [next PATCH 3/3] igb: add support of Rx VLAN priority filters Gangfeng
2 siblings, 0 replies; 5+ messages in thread
From: Gangfeng @ 2015-12-24 2:45 UTC (permalink / raw)
To: intel-wired-lan
From: Gangfeng Huang <gangfeng.huang@ni.com>
This patch is meant to allow for nfc to insert and remove ethertype filter
by ethtool
Example:
Add an ethertype filter:
$ ethtool -N eth0 flow-type ether proto 0x88F8 action 2
Show all filters:
$ ethtool -n eth0
4 RX rings available
Total 1 rules
Filter: 15
Flow Type: Raw Ethernet
Src MAC addr: 00:00:00:00:00:00 mask: FF:FF:FF:FF:FF:FF
Dest MAC addr: 00:00:00:00:00:00 mask: FF:FF:FF:FF:FF:FF
Ethertype: 0x88F8 mask: 0x0
Action: Direct to queue 2
Delete the filter by location:
$ ethtool -N delete 15
Signed-off-by: Ruhao Gao <ruhao.gao@ni.com>
Signed-off-by: Gangfeng Huang <gangfeng.huang@ni.com>
---
drivers/net/ethernet/intel/igb/e1000_82575.h | 5 ++
drivers/net/ethernet/intel/igb/igb.h | 20 ++++++-
drivers/net/ethernet/intel/igb/igb_ethtool.c | 77 +++++++++++++++++++++++++-
drivers/net/ethernet/intel/igb/igb_ptp.c | 4 +-
4 files changed, 102 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/intel/igb/e1000_82575.h b/drivers/net/ethernet/intel/igb/e1000_82575.h
index 2154aea..c4a34e1 100644
--- a/drivers/net/ethernet/intel/igb/e1000_82575.h
+++ b/drivers/net/ethernet/intel/igb/e1000_82575.h
@@ -187,7 +187,12 @@ struct e1000_adv_tx_context_desc {
/* ETQF register bit definitions */
#define E1000_ETQF_FILTER_ENABLE (1 << 26)
+#define E1000_ETQF_IMM_INT (1 << 29)
#define E1000_ETQF_1588 (1 << 30)
+#define E1000_ETQF_QUEUE_ENABLE (1 << 31)
+#define E1000_ETQF_QUEUE_SHIFT 16
+#define E1000_ETQF_QUEUE_MASK 0x00070000
+#define E1000_ETQF_ETYPE_MASK 0x0000FFFF
/* FTQF register bit definitions */
#define E1000_FTQF_VF_BP 0x00008000
diff --git a/drivers/net/ethernet/intel/igb/igb.h b/drivers/net/ethernet/intel/igb/igb.h
index d4ad3d7..17b4cd3 100644
--- a/drivers/net/ethernet/intel/igb/igb.h
+++ b/drivers/net/ethernet/intel/igb/igb.h
@@ -343,13 +343,27 @@ struct hwmon_buff {
};
#endif
+/* The number of L2 ether-type filter registers, Index 3 is reserved
+ * for PTP 1588 timestamp
+ */
+#define MAX_ETYPE_FILTER (4 - 1)
+
+/* ETQF filter list: one static filter per filter consumer. This is
+ * to avoid filter collisions later. Add new filters
+ * here!!
+ *
+ * Current filters:
+ * 1588 (0x88f7): Filter 3
+ */
+#define IGB_ETQF_FILTER_1588 3
+
#define IGB_N_EXTTS 2
#define IGB_N_PEROUT 2
#define IGB_N_SDP 4
#define IGB_RETA_SIZE 128
enum igb_filter_match_flags {
- IGB_FILTER_FLAG_NONE = 0x0,
+ IGB_FILTER_FLAG_ETHER_TYPE = 0x1,
};
#define IGB_MAX_RXNFC_FILTERS 16
@@ -357,8 +371,10 @@ enum igb_filter_match_flags {
struct igb_nfc_input {
/* Byte layout in order, all values with MSB first:
* match_flags - 1 byte
+ * etype - 2 bytes
*/
u8 match_flags;
+ __be16 etype;
};
/* board specific private data structure */
@@ -482,11 +498,13 @@ struct igb_adapter {
unsigned int nfc_filter_count;
/* lock for nfc filter */
spinlock_t nfc_lock;
+ bool etype_bitmap[MAX_ETYPE_FILTER];
};
struct igb_nfc_filter {
struct hlist_node nfc_node;
struct igb_nfc_input filter;
+ u16 etype_reg_index;
u16 sw_idx;
u16 action;
};
diff --git a/drivers/net/ethernet/intel/igb/igb_ethtool.c b/drivers/net/ethernet/intel/igb/igb_ethtool.c
index c091626..135c8af 100644
--- a/drivers/net/ethernet/intel/igb/igb_ethtool.c
+++ b/drivers/net/ethernet/intel/igb/igb_ethtool.c
@@ -2421,6 +2421,7 @@ static int igb_get_ts_info(struct net_device *dev,
}
}
+#define ETHER_TYPE_FULL_MASK ((__force __be16)~0)
static int igb_get_ethtool_nfc_entry(struct igb_adapter *adapter,
struct ethtool_rxnfc *cmd)
{
@@ -2438,6 +2439,13 @@ static int igb_get_ethtool_nfc_entry(struct igb_adapter *adapter,
if (!rule || fsp->location != rule->sw_idx)
return -EINVAL;
+ if (rule->filter.match_flags & IGB_FILTER_FLAG_ETHER_TYPE) {
+ fsp->flow_type = ETHER_FLOW;
+ fsp->ring_cookie = rule->action;
+ fsp->h_u.ether_spec.h_proto = rule->filter.etype;
+ fsp->m_u.ether_spec.h_proto = ETHER_TYPE_FULL_MASK;
+ return 0;
+ }
return -EINVAL;
}
@@ -2640,13 +2648,75 @@ static int igb_set_rss_hash_opt(struct igb_adapter *adapter,
return 0;
}
+static int igb_rxnfc_write_etype_filter(struct igb_adapter *adapter,
+ struct igb_nfc_filter *input)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u8 i;
+ u32 etqf;
+ u16 etype;
+
+ /* find an empty etype filter register */
+ for (i = 0; i < MAX_ETYPE_FILTER; ++i) {
+ if (!adapter->etype_bitmap[i])
+ break;
+ }
+ if (i == MAX_ETYPE_FILTER) {
+ dev_err(&adapter->pdev->dev, "ethtool -N: etype filters are all used.\n");
+ return -EINVAL;
+ }
+
+ adapter->etype_bitmap[i] = true;
+
+ etqf = rd32(E1000_ETQF(i));
+ etype = ntohs(input->filter.etype & ETHER_TYPE_FULL_MASK);
+
+ etqf |= E1000_ETQF_FILTER_ENABLE;
+ etqf &= ~E1000_ETQF_ETYPE_MASK;
+ etqf |= (etype & E1000_ETQF_ETYPE_MASK);
+
+ etqf &= ~E1000_ETQF_QUEUE_MASK;
+ etqf |= ((input->action << E1000_ETQF_QUEUE_SHIFT)
+ & E1000_ETQF_QUEUE_MASK);
+ etqf |= E1000_ETQF_QUEUE_ENABLE;
+
+ wr32(E1000_ETQF(i), etqf);
+
+ input->etype_reg_index = i;
+
+ return 0;
+}
+
int igb_add_filter(struct igb_adapter *adapter, struct igb_nfc_filter *input)
{
- return -EINVAL;
+ int err = -EINVAL;
+
+ if (input->filter.match_flags & IGB_FILTER_FLAG_ETHER_TYPE)
+ err = igb_rxnfc_write_etype_filter(adapter, input);
+
+ return err;
+}
+
+static void igb_clear_etype_filter_regs(struct igb_adapter *adapter,
+ u16 reg_index)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u32 etqf = rd32(E1000_ETQF(reg_index));
+
+ etqf &= ~E1000_ETQF_QUEUE_ENABLE;
+ etqf &= ~E1000_ETQF_QUEUE_MASK;
+ etqf &= ~E1000_ETQF_FILTER_ENABLE;
+
+ wr32(E1000_ETQF(reg_index), etqf);
+
+ adapter->etype_bitmap[reg_index] = false;
}
int igb_erase_filter(struct igb_adapter *adapter, struct igb_nfc_filter *input)
{
+ if (input->filter.match_flags & IGB_FILTER_FLAG_ETHER_TYPE)
+ igb_clear_etype_filter_regs(adapter,
+ input->etype_reg_index);
return 0;
}
@@ -2728,10 +2798,15 @@ static int igb_add_ethtool_nfc_entry(struct igb_adapter *adapter,
if ((fsp->flow_type & ~FLOW_EXT) != ETHER_FLOW)
return -EINVAL;
+ if (fsp->m_u.ether_spec.h_proto != ETHER_TYPE_FULL_MASK)
+ return -EINVAL;
+
input = kzalloc(sizeof(*input), GFP_KERNEL);
if (!input)
return -ENOMEM;
+ input->filter.etype = fsp->h_u.ether_spec.h_proto;
+ input->filter.match_flags = IGB_FILTER_FLAG_ETHER_TYPE;
input->action = fsp->ring_cookie;
input->sw_idx = fsp->location;
diff --git a/drivers/net/ethernet/intel/igb/igb_ptp.c b/drivers/net/ethernet/intel/igb/igb_ptp.c
index c44df87..84c4943 100644
--- a/drivers/net/ethernet/intel/igb/igb_ptp.c
+++ b/drivers/net/ethernet/intel/igb/igb_ptp.c
@@ -940,12 +940,12 @@ static int igb_ptp_set_timestamp_mode(struct igb_adapter *adapter,
/* define ethertype filter for timestamped packets */
if (is_l2)
- wr32(E1000_ETQF(3),
+ wr32(E1000_ETQF(IGB_ETQF_FILTER_1588),
(E1000_ETQF_FILTER_ENABLE | /* enable filter */
E1000_ETQF_1588 | /* enable timestamping */
ETH_P_1588)); /* 1588 eth protocol type */
else
- wr32(E1000_ETQF(3), 0);
+ wr32(E1000_ETQF(IGB_ETQF_FILTER_1588), 0);
/* L4 Queue Filter[3]: filter by destination port and protocol */
if (is_l4) {
--
1.7.9.5
^ permalink raw reply related [flat|nested] 5+ messages in thread* [Intel-wired-lan] [next PATCH 3/3] igb: add support of Rx VLAN priority filters
2015-12-24 2:44 [Intel-wired-lan] [next PATCH 0/3] igb: add Rx ethertype filter and VLAN priority filter Gangfeng
2015-12-24 2:45 ` [Intel-wired-lan] [next PATCH 1/3] igb: Enable the ethtool interface fo Rx filter Gangfeng
2015-12-24 2:45 ` [Intel-wired-lan] [next PATCH 2/3] igb: add support of ethertype RX filters Gangfeng
@ 2015-12-24 2:45 ` Gangfeng
2 siblings, 0 replies; 5+ messages in thread
From: Gangfeng @ 2015-12-24 2:45 UTC (permalink / raw)
To: intel-wired-lan
From: Gangfeng Huang <gangfeng.huang@ni.com>
This patch is meant to allow for nfc to insert and remove VLAN priority
filter by ethtool
Example:
Add an VLAN priority filter:
$ ethtool -N eth0 flow-type ether vlan 0x6000 vlan-mask 0x1FFF action 2 loc 1
Show all filters:
$ ethtool -n eth0
4 RX rings available
Total 1 rules
Filter: 1
Flow Type: Raw Ethernet
Src MAC addr: 00:00:00:00:00:00 mask: FF:FF:FF:FF:FF:FF
Dest MAC addr: 00:00:00:00:00:00 mask: FF:FF:FF:FF:FF:FF
Ethertype: 0x0 mask: 0xFFFF
VLAN EtherType: 0x0 mask: 0xffff
VLAN: 0x6000 mask: 0x1fff
User-defined: 0x0 mask: 0xffffffffffffffff
Action: Direct to queue 2
Delete the filter by location:
$ ethtool -N delete 1
Signed-off-by: Ruhao Gao <ruhao.gao@ni.com>
Signed-off-by: Gangfeng Huang <gangfeng.huang@ni.com>
---
drivers/net/ethernet/intel/igb/e1000_defines.h | 5 ++
drivers/net/ethernet/intel/igb/e1000_regs.h | 1 +
drivers/net/ethernet/intel/igb/igb.h | 3 +
drivers/net/ethernet/intel/igb/igb_ethtool.c | 91 ++++++++++++++++++++++--
4 files changed, 93 insertions(+), 7 deletions(-)
diff --git a/drivers/net/ethernet/intel/igb/e1000_defines.h b/drivers/net/ethernet/intel/igb/e1000_defines.h
index b191504..954ab3f 100644
--- a/drivers/net/ethernet/intel/igb/e1000_defines.h
+++ b/drivers/net/ethernet/intel/igb/e1000_defines.h
@@ -1019,4 +1019,9 @@
#define E1000_RTTBCNRC_RF_INT_MASK \
(E1000_RTTBCNRC_RF_DEC_MASK << E1000_RTTBCNRC_RF_INT_SHIFT)
+/* VLAN Priority Filter */
+#define E1000_VLAPQF_QUEUE_SEL(_n, q_idx) (q_idx << ((_n) * 4))
+#define E1000_VLAPQF_P_VALID(_n) (0x1 << (3 + (_n) * 4))
+#define E1000_VLAPQF_QUEUE_MASK 0x03
+
#endif
diff --git a/drivers/net/ethernet/intel/igb/e1000_regs.h b/drivers/net/ethernet/intel/igb/e1000_regs.h
index 4af2870..9168c7d 100644
--- a/drivers/net/ethernet/intel/igb/e1000_regs.h
+++ b/drivers/net/ethernet/intel/igb/e1000_regs.h
@@ -308,6 +308,7 @@
(0x054E0 + ((_i - 16) * 8)))
#define E1000_RAH(_i) (((_i) <= 15) ? (0x05404 + ((_i) * 8)) : \
(0x054E4 + ((_i - 16) * 8)))
+#define E1000_VLAPQF 0x055B0 /* VLAN Priority Queue Filter VLAPQF */
#define E1000_IP4AT_REG(_i) (0x05840 + ((_i) * 8))
#define E1000_IP6AT_REG(_i) (0x05880 + ((_i) * 4))
#define E1000_WUPM_REG(_i) (0x05A00 + ((_i) * 4))
diff --git a/drivers/net/ethernet/intel/igb/igb.h b/drivers/net/ethernet/intel/igb/igb.h
index 17b4cd3..f06cfe2 100644
--- a/drivers/net/ethernet/intel/igb/igb.h
+++ b/drivers/net/ethernet/intel/igb/igb.h
@@ -364,6 +364,7 @@ struct hwmon_buff {
enum igb_filter_match_flags {
IGB_FILTER_FLAG_ETHER_TYPE = 0x1,
+ IGB_FILTER_FLAG_VLAN_TCI = 0x2,
};
#define IGB_MAX_RXNFC_FILTERS 16
@@ -372,9 +373,11 @@ struct igb_nfc_input {
/* Byte layout in order, all values with MSB first:
* match_flags - 1 byte
* etype - 2 bytes
+ * vlan_tci - 2 bytes
*/
u8 match_flags;
__be16 etype;
+ __be16 vlan_tci;
};
/* board specific private data structure */
diff --git a/drivers/net/ethernet/intel/igb/igb_ethtool.c b/drivers/net/ethernet/intel/igb/igb_ethtool.c
index 135c8af..a826735 100644
--- a/drivers/net/ethernet/intel/igb/igb_ethtool.c
+++ b/drivers/net/ethernet/intel/igb/igb_ethtool.c
@@ -2439,11 +2439,18 @@ static int igb_get_ethtool_nfc_entry(struct igb_adapter *adapter,
if (!rule || fsp->location != rule->sw_idx)
return -EINVAL;
- if (rule->filter.match_flags & IGB_FILTER_FLAG_ETHER_TYPE) {
+ if (rule->filter.match_flags) {
fsp->flow_type = ETHER_FLOW;
fsp->ring_cookie = rule->action;
- fsp->h_u.ether_spec.h_proto = rule->filter.etype;
- fsp->m_u.ether_spec.h_proto = ETHER_TYPE_FULL_MASK;
+ if (rule->filter.match_flags & IGB_FILTER_FLAG_ETHER_TYPE) {
+ fsp->h_u.ether_spec.h_proto = rule->filter.etype;
+ fsp->m_u.ether_spec.h_proto = ETHER_TYPE_FULL_MASK;
+ }
+ if (rule->filter.match_flags & IGB_FILTER_FLAG_VLAN_TCI) {
+ fsp->flow_type |= FLOW_EXT;
+ fsp->h_ext.vlan_tci = rule->filter.vlan_tci;
+ fsp->m_ext.vlan_tci = htons(VLAN_PRIO_MASK);
+ }
return 0;
}
return -EINVAL;
@@ -2687,12 +2694,46 @@ static int igb_rxnfc_write_etype_filter(struct igb_adapter *adapter,
return 0;
}
+int igb_rxnfc_write_vlan_prio_filter(struct igb_adapter *adapter,
+ struct igb_nfc_filter *input)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u32 vlapqf;
+ u8 vlan_priority;
+ u16 queue_index;
+
+ vlapqf = rd32(E1000_VLAPQF);
+ vlan_priority = (ntohs(input->filter.vlan_tci) & VLAN_PRIO_MASK)
+ >> VLAN_PRIO_SHIFT;
+ queue_index = (vlapqf >> (vlan_priority * 4)) & E1000_VLAPQF_QUEUE_MASK;
+
+ /* check whether this vlan prio is already set */
+ if ((vlapqf & E1000_VLAPQF_P_VALID(vlan_priority)) &&
+ (queue_index != input->action)) {
+ dev_err(&adapter->pdev->dev, "ethtool rxnfc set vlan prio filter failed.\n");
+ return -EEXIST;
+ }
+
+ vlapqf |= E1000_VLAPQF_P_VALID(vlan_priority);
+ vlapqf |= E1000_VLAPQF_QUEUE_SEL(vlan_priority, input->action);
+
+ wr32(E1000_VLAPQF, vlapqf);
+
+ return 0;
+}
+
int igb_add_filter(struct igb_adapter *adapter, struct igb_nfc_filter *input)
{
int err = -EINVAL;
- if (input->filter.match_flags & IGB_FILTER_FLAG_ETHER_TYPE)
+ if (input->filter.match_flags & IGB_FILTER_FLAG_ETHER_TYPE) {
err = igb_rxnfc_write_etype_filter(adapter, input);
+ if (err)
+ return err;
+ }
+
+ if (input->filter.match_flags & IGB_FILTER_FLAG_VLAN_TCI)
+ err = igb_rxnfc_write_vlan_prio_filter(adapter, input);
return err;
}
@@ -2712,11 +2753,33 @@ static void igb_clear_etype_filter_regs(struct igb_adapter *adapter,
adapter->etype_bitmap[reg_index] = false;
}
+static void igb_clear_vlan_prio_filter(struct igb_adapter *adapter,
+ u16 vlan_tci)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u32 vlapqf;
+ u8 vlan_priority;
+
+ vlan_priority = (vlan_tci & VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT;
+
+ vlapqf = rd32(E1000_VLAPQF);
+ vlapqf &= ~E1000_VLAPQF_P_VALID(vlan_priority);
+ vlapqf &= ~E1000_VLAPQF_QUEUE_SEL(vlan_priority,
+ E1000_VLAPQF_QUEUE_MASK);
+
+ wr32(E1000_VLAPQF, vlapqf);
+}
+
int igb_erase_filter(struct igb_adapter *adapter, struct igb_nfc_filter *input)
{
if (input->filter.match_flags & IGB_FILTER_FLAG_ETHER_TYPE)
igb_clear_etype_filter_regs(adapter,
input->etype_reg_index);
+
+ if (input->filter.match_flags & IGB_FILTER_FLAG_VLAN_TCI)
+ igb_clear_vlan_prio_filter(adapter,
+ ntohs(input->filter.vlan_tci));
+
return 0;
}
@@ -2798,15 +2861,28 @@ static int igb_add_ethtool_nfc_entry(struct igb_adapter *adapter,
if ((fsp->flow_type & ~FLOW_EXT) != ETHER_FLOW)
return -EINVAL;
- if (fsp->m_u.ether_spec.h_proto != ETHER_TYPE_FULL_MASK)
+ if (fsp->m_u.ether_spec.h_proto != ETHER_TYPE_FULL_MASK &&
+ fsp->m_ext.vlan_tci != htons(VLAN_PRIO_MASK))
return -EINVAL;
input = kzalloc(sizeof(*input), GFP_KERNEL);
if (!input)
return -ENOMEM;
- input->filter.etype = fsp->h_u.ether_spec.h_proto;
- input->filter.match_flags = IGB_FILTER_FLAG_ETHER_TYPE;
+ if (fsp->m_u.ether_spec.h_proto == ETHER_TYPE_FULL_MASK) {
+ input->filter.etype = fsp->h_u.ether_spec.h_proto;
+ input->filter.match_flags = IGB_FILTER_FLAG_ETHER_TYPE;
+ }
+
+ if ((fsp->flow_type & FLOW_EXT) && fsp->m_ext.vlan_tci) {
+ if (fsp->m_ext.vlan_tci != htons(VLAN_PRIO_MASK)) {
+ err = -EINVAL;
+ goto err_out;
+ }
+ input->filter.vlan_tci = fsp->h_ext.vlan_tci;
+ input->filter.match_flags |= IGB_FILTER_FLAG_VLAN_TCI;
+ }
+
input->action = fsp->ring_cookie;
input->sw_idx = fsp->location;
@@ -2833,6 +2909,7 @@ static int igb_add_ethtool_nfc_entry(struct igb_adapter *adapter,
err_out_w_lock:
spin_unlock(&adapter->nfc_lock);
+err_out:
kfree(input);
return err;
}
--
1.7.9.5
^ permalink raw reply related [flat|nested] 5+ messages in thread