* [net-next-2.6 PATCH 2/3] ixgbe: Change Direct Attach Twinax cable detection for SFP+ NICs
2009-05-19 19:18 [net-next-2.6 PATCH 1/3] ixgbe: Add semaphore access for PHY initialization for 82599 Jeff Kirsher
@ 2009-05-19 19:18 ` Jeff Kirsher
2009-05-19 21:41 ` David Miller
2009-05-19 19:19 ` [net-next-2.6 PATCH 3/3] ixgbe: Cleanup feature setup code to make the code more readable Jeff Kirsher
2009-05-19 21:40 ` [net-next-2.6 PATCH 1/3] ixgbe: Add semaphore access for PHY initialization for 82599 David Miller
2 siblings, 1 reply; 6+ messages in thread
From: Jeff Kirsher @ 2009-05-19 19:18 UTC (permalink / raw)
To: davem; +Cc: netdev, Peter P Waskiewicz Jr, Jeff Kirsher
From: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
The SFF specification for Direct Attach cable detection has now been
ratified. Previously, DA cable detect was looking at the Twinaxial bit in
byte 9 of the SFP+ EEPROM. The spec now defines active and passive DA
cables in byte 8 of the SFP+ EEPROM. This patch changes the cable
detection for both 82598 and 82599 SFP+ adapters to conform to the new
spec.
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
drivers/net/ixgbe/ixgbe_phy.c | 20 +++++++++-----------
drivers/net/ixgbe/ixgbe_phy.h | 4 ++--
2 files changed, 11 insertions(+), 13 deletions(-)
diff --git a/drivers/net/ixgbe/ixgbe_phy.c b/drivers/net/ixgbe/ixgbe_phy.c
index 6d385ea..8210b49 100644
--- a/drivers/net/ixgbe/ixgbe_phy.c
+++ b/drivers/net/ixgbe/ixgbe_phy.c
@@ -527,7 +527,7 @@ s32 ixgbe_identify_sfp_module_generic(struct ixgbe_hw *hw)
u8 comp_codes_1g = 0;
u8 comp_codes_10g = 0;
u8 oui_bytes[3] = {0, 0, 0};
- u8 transmission_media = 0;
+ u8 cable_tech = 0;
u16 enforce_sfp = 0;
status = hw->phy.ops.read_i2c_eeprom(hw, IXGBE_SFF_IDENTIFIER,
@@ -543,8 +543,8 @@ s32 ixgbe_identify_sfp_module_generic(struct ixgbe_hw *hw)
&comp_codes_1g);
hw->phy.ops.read_i2c_eeprom(hw, IXGBE_SFF_10GBE_COMP_CODES,
&comp_codes_10g);
- hw->phy.ops.read_i2c_eeprom(hw, IXGBE_SFF_TRANSMISSION_MEDIA,
- &transmission_media);
+ hw->phy.ops.read_i2c_eeprom(hw, IXGBE_SFF_CABLE_TECHNOLOGY,
+ &cable_tech);
/* ID Module
* =========
@@ -557,7 +557,7 @@ s32 ixgbe_identify_sfp_module_generic(struct ixgbe_hw *hw)
* 6 SFP_SR/LR_CORE1 - 82599-specific
*/
if (hw->mac.type == ixgbe_mac_82598EB) {
- if (transmission_media & IXGBE_SFF_TWIN_AX_CAPABLE)
+ if (cable_tech & IXGBE_SFF_DA_PASSIVE_CABLE)
hw->phy.sfp_type = ixgbe_sfp_type_da_cu;
else if (comp_codes_10g & IXGBE_SFF_10GBASESR_CAPABLE)
hw->phy.sfp_type = ixgbe_sfp_type_sr;
@@ -566,7 +566,7 @@ s32 ixgbe_identify_sfp_module_generic(struct ixgbe_hw *hw)
else
hw->phy.sfp_type = ixgbe_sfp_type_unknown;
} else if (hw->mac.type == ixgbe_mac_82599EB) {
- if (transmission_media & IXGBE_SFF_TWIN_AX_CAPABLE)
+ if (cable_tech & IXGBE_SFF_DA_PASSIVE_CABLE)
if (hw->bus.lan_id == 0)
hw->phy.sfp_type =
ixgbe_sfp_type_da_cu_core0;
@@ -621,8 +621,7 @@ s32 ixgbe_identify_sfp_module_generic(struct ixgbe_hw *hw)
switch (vendor_oui) {
case IXGBE_SFF_VENDOR_OUI_TYCO:
- if (transmission_media &
- IXGBE_SFF_TWIN_AX_CAPABLE)
+ if (cable_tech & IXGBE_SFF_DA_PASSIVE_CABLE)
hw->phy.type = ixgbe_phy_tw_tyco;
break;
case IXGBE_SFF_VENDOR_OUI_FTL:
@@ -635,8 +634,7 @@ s32 ixgbe_identify_sfp_module_generic(struct ixgbe_hw *hw)
hw->phy.type = ixgbe_phy_sfp_intel;
break;
default:
- if (transmission_media &
- IXGBE_SFF_TWIN_AX_CAPABLE)
+ if (cable_tech & IXGBE_SFF_DA_PASSIVE_CABLE)
hw->phy.type = ixgbe_phy_tw_unknown;
else
hw->phy.type = ixgbe_phy_sfp_unknown;
@@ -644,8 +642,8 @@ s32 ixgbe_identify_sfp_module_generic(struct ixgbe_hw *hw)
}
}
- /* All DA cables are supported */
- if (transmission_media & IXGBE_SFF_TWIN_AX_CAPABLE) {
+ /* All passive DA cables are supported */
+ if (cable_tech & IXGBE_SFF_DA_PASSIVE_CABLE) {
status = 0;
goto out;
}
diff --git a/drivers/net/ixgbe/ixgbe_phy.h b/drivers/net/ixgbe/ixgbe_phy.h
index c9964b7..9b700f5 100644
--- a/drivers/net/ixgbe/ixgbe_phy.h
+++ b/drivers/net/ixgbe/ixgbe_phy.h
@@ -39,10 +39,10 @@
#define IXGBE_SFF_VENDOR_OUI_BYTE2 0x27
#define IXGBE_SFF_1GBE_COMP_CODES 0x6
#define IXGBE_SFF_10GBE_COMP_CODES 0x3
-#define IXGBE_SFF_TRANSMISSION_MEDIA 0x9
+#define IXGBE_SFF_CABLE_TECHNOLOGY 0x8
/* Bitmasks */
-#define IXGBE_SFF_TWIN_AX_CAPABLE 0x80
+#define IXGBE_SFF_DA_PASSIVE_CABLE 0x4
#define IXGBE_SFF_1GBASESX_CAPABLE 0x1
#define IXGBE_SFF_1GBASELX_CAPABLE 0x2
#define IXGBE_SFF_10GBASESR_CAPABLE 0x10
^ permalink raw reply related [flat|nested] 6+ messages in thread* Re: [net-next-2.6 PATCH 2/3] ixgbe: Change Direct Attach Twinax cable detection for SFP+ NICs
2009-05-19 19:18 ` [net-next-2.6 PATCH 2/3] ixgbe: Change Direct Attach Twinax cable detection for SFP+ NICs Jeff Kirsher
@ 2009-05-19 21:41 ` David Miller
0 siblings, 0 replies; 6+ messages in thread
From: David Miller @ 2009-05-19 21:41 UTC (permalink / raw)
To: jeffrey.t.kirsher; +Cc: netdev, peter.p.waskiewicz.jr
From: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Date: Tue, 19 May 2009 12:18:51 -0700
> The SFF specification for Direct Attach cable detection has now been
> ratified. Previously, DA cable detect was looking at the Twinaxial bit in
> byte 9 of the SFP+ EEPROM. The spec now defines active and passive DA
> cables in byte 8 of the SFP+ EEPROM. This patch changes the cable
> detection for both 82598 and 82599 SFP+ adapters to conform to the new
> spec.
>
> Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Applied.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [net-next-2.6 PATCH 3/3] ixgbe: Cleanup feature setup code to make the code more readable
2009-05-19 19:18 [net-next-2.6 PATCH 1/3] ixgbe: Add semaphore access for PHY initialization for 82599 Jeff Kirsher
2009-05-19 19:18 ` [net-next-2.6 PATCH 2/3] ixgbe: Change Direct Attach Twinax cable detection for SFP+ NICs Jeff Kirsher
@ 2009-05-19 19:19 ` Jeff Kirsher
2009-05-19 21:41 ` David Miller
2009-05-19 21:40 ` [net-next-2.6 PATCH 1/3] ixgbe: Add semaphore access for PHY initialization for 82599 David Miller
2 siblings, 1 reply; 6+ messages in thread
From: Jeff Kirsher @ 2009-05-19 19:19 UTC (permalink / raw)
To: davem; +Cc: netdev, Peter P Waskiewicz Jr, Jesse Brandeburg, Jeff Kirsher
From: Jesse Brandeburg <jesse.brandeburg@intel.com>
This is purely a cleanup patch. This collapses some of the code required
when we configure our Tx and Rx feature sets, and makes the code more
readable and maintainable.
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
drivers/net/ixgbe/ixgbe_main.c | 85 ++++++++++++++++++++++++----------------
1 files changed, 50 insertions(+), 35 deletions(-)
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index d342619..3d5f7f5 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -1747,10 +1747,11 @@ static void ixgbe_configure_srrctl(struct ixgbe_adapter *adapter, int index)
u32 srrctl;
int queue0 = 0;
unsigned long mask;
+ struct ixgbe_ring_feature *feature = adapter->ring_feature;
if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) {
- int dcb_i = adapter->ring_feature[RING_F_DCB].indices;
+ int dcb_i = feature[RING_F_DCB].indices;
if (dcb_i == 8)
queue0 = index >> 4;
else if (dcb_i == 4)
@@ -1773,7 +1774,7 @@ static void ixgbe_configure_srrctl(struct ixgbe_adapter *adapter, int index)
queue0 = index;
}
} else {
- mask = (unsigned long) adapter->ring_feature[RING_F_RSS].mask;
+ mask = (unsigned long) feature[RING_F_RSS].mask;
queue0 = index & mask;
index = index & mask;
}
@@ -1804,6 +1805,36 @@ static void ixgbe_configure_srrctl(struct ixgbe_adapter *adapter, int index)
IXGBE_WRITE_REG(&adapter->hw, IXGBE_SRRCTL(index), srrctl);
}
+static u32 ixgbe_setup_mrqc(struct ixgbe_adapter *adapter)
+{
+ u32 mrqc = 0;
+ int mask;
+
+ if (!(adapter->hw.mac.type == ixgbe_mac_82599EB))
+ return mrqc;
+
+ mask = adapter->flags & (IXGBE_FLAG_RSS_ENABLED
+#ifdef CONFIG_IXGBE_DCB
+ | IXGBE_FLAG_DCB_ENABLED
+#endif
+ );
+
+ switch (mask) {
+ case (IXGBE_FLAG_RSS_ENABLED):
+ mrqc = IXGBE_MRQC_RSSEN;
+ break;
+#ifdef CONFIG_IXGBE_DCB
+ case (IXGBE_FLAG_DCB_ENABLED):
+ mrqc = IXGBE_MRQC_RT8TCEN;
+ break;
+#endif /* CONFIG_IXGBE_DCB */
+ default:
+ break;
+ }
+
+ return mrqc;
+}
+
/**
* ixgbe_configure_rx - Configure 8259x Receive Unit after Reset
* @adapter: board private structure
@@ -1877,8 +1908,10 @@ static void ixgbe_configure_rx(struct ixgbe_adapter *adapter)
rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL);
IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, rxctrl & ~IXGBE_RXCTRL_RXEN);
- /* Setup the HW Rx Head and Tail Descriptor Pointers and
- * the Base and Length of the Rx Descriptor Ring */
+ /*
+ * Setup the HW Rx Head and Tail Descriptor Pointers and
+ * the Base and Length of the Rx Descriptor Ring
+ */
for (i = 0; i < adapter->num_rx_queues; i++) {
rdba = adapter->rx_ring[i].dma;
j = adapter->rx_ring[i].reg_idx;
@@ -1922,23 +1955,8 @@ static void ixgbe_configure_rx(struct ixgbe_adapter *adapter)
}
/* Program MRQC for the distribution of queues */
- if (hw->mac.type == ixgbe_mac_82599EB) {
- int mask = adapter->flags & (
- IXGBE_FLAG_RSS_ENABLED
- | IXGBE_FLAG_DCB_ENABLED
- );
+ mrqc = ixgbe_setup_mrqc(adapter);
- switch (mask) {
- case (IXGBE_FLAG_RSS_ENABLED):
- mrqc = IXGBE_MRQC_RSSEN;
- break;
- case (IXGBE_FLAG_DCB_ENABLED):
- mrqc = IXGBE_MRQC_RT8TCEN;
- break;
- default:
- break;
- }
- }
if (adapter->flags & IXGBE_FLAG_RSS_ENABLED) {
/* Fill out redirection table */
for (i = 0, j = 0; i < 128; i++, j++) {
@@ -2842,17 +2860,15 @@ static void ixgbe_reset_task(struct work_struct *work)
static inline bool ixgbe_set_dcb_queues(struct ixgbe_adapter *adapter)
{
bool ret = false;
+ struct ixgbe_ring_feature *f = &adapter->ring_feature[RING_F_DCB];
- if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) {
- adapter->ring_feature[RING_F_DCB].mask = 0x7 << 3;
- adapter->num_rx_queues =
- adapter->ring_feature[RING_F_DCB].indices;
- adapter->num_tx_queues =
- adapter->ring_feature[RING_F_DCB].indices;
- ret = true;
- } else {
- ret = false;
- }
+ if (!(adapter->flags & IXGBE_FLAG_DCB_ENABLED))
+ return ret;
+
+ f->mask = 0x7 << 3;
+ adapter->num_rx_queues = f->indices;
+ adapter->num_tx_queues = f->indices;
+ ret = true;
return ret;
}
@@ -2869,13 +2885,12 @@ static inline bool ixgbe_set_dcb_queues(struct ixgbe_adapter *adapter)
static inline bool ixgbe_set_rss_queues(struct ixgbe_adapter *adapter)
{
bool ret = false;
+ struct ixgbe_ring_feature *f = &adapter->ring_feature[RING_F_RSS];
if (adapter->flags & IXGBE_FLAG_RSS_ENABLED) {
- adapter->ring_feature[RING_F_RSS].mask = 0xF;
- adapter->num_rx_queues =
- adapter->ring_feature[RING_F_RSS].indices;
- adapter->num_tx_queues =
- adapter->ring_feature[RING_F_RSS].indices;
+ f->mask = 0xF;
+ adapter->num_rx_queues = f->indices;
+ adapter->num_tx_queues = f->indices;
ret = true;
} else {
ret = false;
^ permalink raw reply related [flat|nested] 6+ messages in thread* Re: [net-next-2.6 PATCH 1/3] ixgbe: Add semaphore access for PHY initialization for 82599
2009-05-19 19:18 [net-next-2.6 PATCH 1/3] ixgbe: Add semaphore access for PHY initialization for 82599 Jeff Kirsher
2009-05-19 19:18 ` [net-next-2.6 PATCH 2/3] ixgbe: Change Direct Attach Twinax cable detection for SFP+ NICs Jeff Kirsher
2009-05-19 19:19 ` [net-next-2.6 PATCH 3/3] ixgbe: Cleanup feature setup code to make the code more readable Jeff Kirsher
@ 2009-05-19 21:40 ` David Miller
2 siblings, 0 replies; 6+ messages in thread
From: David Miller @ 2009-05-19 21:40 UTC (permalink / raw)
To: jeffrey.t.kirsher; +Cc: netdev, peter.p.waskiewicz.jr
From: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Date: Tue, 19 May 2009 12:18:34 -0700
> The SFP+ NIC (device id 0x10fb) needs a semaphore to serialize
> PHY access, so our PHY init code must honor that same semaphore.
>
> Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Applied.
^ permalink raw reply [flat|nested] 6+ messages in thread