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Date: Wed, 4 May 2016 09:26:47 -0700
From: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To: davem@...emloft.net
Cc: Usha Ketineni <usha.k.ketineni@...el.com>, netdev@...r.kernel.org,
nhorman@...hat.com, sassmann@...hat.com, jogreene@...hat.com,
Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: [net-next 13/14] ixgbe: Disable DCB and FCoE for X550EM_x and x550em_a
From: Usha Ketineni <usha.k.ketineni@...el.com>
This patch adds IXGBE_FLAG_DCB_CAPABLE flag that is set
for all MACs other than X550EM_x and x550em_a. DCB and
FCoE is disabled for these MACS. DCB initialization
code is moved to a separate function.
Signed-off-by: Usha Ketineni <usha.k.ketineni@...el.com>
Tested-by: Ronald Bynoe <ronald.j.bynoe@...el.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---
drivers/net/ethernet/intel/ixgbe/ixgbe.h | 1 +
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 111 ++++++++++++++++----------
drivers/net/ethernet/intel/ixgbe/ixgbe_type.h | 1 +
3 files changed, 71 insertions(+), 42 deletions(-)
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe.h b/drivers/net/ethernet/intel/ixgbe/ixgbe.h
index e216a3d..9f2db18 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe.h
@@ -644,6 +644,7 @@ struct ixgbe_adapter {
#define IXGBE_FLAG_VXLAN_OFFLOAD_CAPABLE BIT(24)
#define IXGBE_FLAG_RX_HWTSTAMP_ENABLED BIT(25)
#define IXGBE_FLAG_RX_HWTSTAMP_IN_REGISTER BIT(26)
+#define IXGBE_FLAG_DCB_CAPABLE BIT(27)
u32 flags2;
#define IXGBE_FLAG2_RSC_CAPABLE BIT(0)
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 403b3cc..2f69842 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -5559,6 +5559,58 @@ static void ixgbe_tx_timeout(struct net_device *netdev)
ixgbe_tx_timeout_reset(adapter);
}
+#ifdef CONFIG_IXGBE_DCB
+static void ixgbe_init_dcb(struct ixgbe_adapter *adapter)
+{
+ struct ixgbe_hw *hw = &adapter->hw;
+ struct tc_configuration *tc;
+ int j;
+
+ switch (hw->mac.type) {
+ case ixgbe_mac_82598EB:
+ case ixgbe_mac_82599EB:
+ adapter->dcb_cfg.num_tcs.pg_tcs = MAX_TRAFFIC_CLASS;
+ adapter->dcb_cfg.num_tcs.pfc_tcs = MAX_TRAFFIC_CLASS;
+ break;
+ case ixgbe_mac_X540:
+ case ixgbe_mac_X550:
+ adapter->dcb_cfg.num_tcs.pg_tcs = X540_TRAFFIC_CLASS;
+ adapter->dcb_cfg.num_tcs.pfc_tcs = X540_TRAFFIC_CLASS;
+ break;
+ case ixgbe_mac_X550EM_x:
+ case ixgbe_mac_x550em_a:
+ default:
+ adapter->dcb_cfg.num_tcs.pg_tcs = DEF_TRAFFIC_CLASS;
+ adapter->dcb_cfg.num_tcs.pfc_tcs = DEF_TRAFFIC_CLASS;
+ break;
+ }
+
+ /* Configure DCB traffic classes */
+ for (j = 0; j < MAX_TRAFFIC_CLASS; j++) {
+ tc = &adapter->dcb_cfg.tc_config[j];
+ tc->path[DCB_TX_CONFIG].bwg_id = 0;
+ tc->path[DCB_TX_CONFIG].bwg_percent = 12 + (j & 1);
+ tc->path[DCB_RX_CONFIG].bwg_id = 0;
+ tc->path[DCB_RX_CONFIG].bwg_percent = 12 + (j & 1);
+ tc->dcb_pfc = pfc_disabled;
+ }
+
+ /* Initialize default user to priority mapping, UPx->TC0 */
+ tc = &adapter->dcb_cfg.tc_config[0];
+ tc->path[DCB_TX_CONFIG].up_to_tc_bitmap = 0xFF;
+ tc->path[DCB_RX_CONFIG].up_to_tc_bitmap = 0xFF;
+
+ adapter->dcb_cfg.bw_percentage[DCB_TX_CONFIG][0] = 100;
+ adapter->dcb_cfg.bw_percentage[DCB_RX_CONFIG][0] = 100;
+ adapter->dcb_cfg.pfc_mode_enable = false;
+ adapter->dcb_set_bitmap = 0x00;
+ if (adapter->flags & IXGBE_FLAG_DCB_CAPABLE)
+ adapter->dcbx_cap = DCB_CAP_DCBX_HOST | DCB_CAP_DCBX_VER_CEE;
+ memcpy(&adapter->temp_dcb_cfg, &adapter->dcb_cfg,
+ sizeof(adapter->temp_dcb_cfg));
+}
+#endif
+
/**
* ixgbe_sw_init - Initialize general software structures (struct ixgbe_adapter)
* @adapter: board private structure to initialize
@@ -5575,10 +5627,6 @@ static int ixgbe_sw_init(struct ixgbe_adapter *adapter)
u32 fwsm;
u16 device_caps;
int i;
-#ifdef CONFIG_IXGBE_DCB
- int j;
- struct tc_configuration *tc;
-#endif
/* PCI config space info */
@@ -5600,6 +5648,10 @@ static int ixgbe_sw_init(struct ixgbe_adapter *adapter)
#ifdef CONFIG_IXGBE_DCA
adapter->flags |= IXGBE_FLAG_DCA_CAPABLE;
#endif
+#ifdef CONFIG_IXGBE_DCB
+ adapter->flags |= IXGBE_FLAG_DCB_CAPABLE;
+ adapter->flags &= ~IXGBE_FLAG_DCB_ENABLED;
+#endif
#ifdef IXGBE_FCOE
adapter->flags |= IXGBE_FLAG_FCOE_CAPABLE;
adapter->flags &= ~IXGBE_FLAG_FCOE_ENABLED;
@@ -5656,6 +5708,16 @@ static int ixgbe_sw_init(struct ixgbe_adapter *adapter)
break;
case ixgbe_mac_X550EM_x:
case ixgbe_mac_x550em_a:
+#ifdef CONFIG_IXGBE_DCB
+ adapter->flags &= ~IXGBE_FLAG_DCB_CAPABLE;
+#endif
+#ifdef IXGBE_FCOE
+ adapter->flags &= ~IXGBE_FLAG_FCOE_CAPABLE;
+#ifdef CONFIG_IXGBE_DCB
+ adapter->fcoe.up = 0;
+#endif /* IXGBE_DCB */
+#endif /* IXGBE_FCOE */
+ /* Fall Through */
case ixgbe_mac_X550:
#ifdef CONFIG_IXGBE_DCA
adapter->flags &= ~IXGBE_FLAG_DCA_CAPABLE;
@@ -5677,43 +5739,7 @@ static int ixgbe_sw_init(struct ixgbe_adapter *adapter)
spin_lock_init(&adapter->fdir_perfect_lock);
#ifdef CONFIG_IXGBE_DCB
- switch (hw->mac.type) {
- case ixgbe_mac_X540:
- case ixgbe_mac_X550:
- case ixgbe_mac_X550EM_x:
- case ixgbe_mac_x550em_a:
- adapter->dcb_cfg.num_tcs.pg_tcs = X540_TRAFFIC_CLASS;
- adapter->dcb_cfg.num_tcs.pfc_tcs = X540_TRAFFIC_CLASS;
- break;
- default:
- adapter->dcb_cfg.num_tcs.pg_tcs = MAX_TRAFFIC_CLASS;
- adapter->dcb_cfg.num_tcs.pfc_tcs = MAX_TRAFFIC_CLASS;
- break;
- }
-
- /* Configure DCB traffic classes */
- for (j = 0; j < MAX_TRAFFIC_CLASS; j++) {
- tc = &adapter->dcb_cfg.tc_config[j];
- tc->path[DCB_TX_CONFIG].bwg_id = 0;
- tc->path[DCB_TX_CONFIG].bwg_percent = 12 + (j & 1);
- tc->path[DCB_RX_CONFIG].bwg_id = 0;
- tc->path[DCB_RX_CONFIG].bwg_percent = 12 + (j & 1);
- tc->dcb_pfc = pfc_disabled;
- }
-
- /* Initialize default user to priority mapping, UPx->TC0 */
- tc = &adapter->dcb_cfg.tc_config[0];
- tc->path[DCB_TX_CONFIG].up_to_tc_bitmap = 0xFF;
- tc->path[DCB_RX_CONFIG].up_to_tc_bitmap = 0xFF;
-
- adapter->dcb_cfg.bw_percentage[DCB_TX_CONFIG][0] = 100;
- adapter->dcb_cfg.bw_percentage[DCB_RX_CONFIG][0] = 100;
- adapter->dcb_cfg.pfc_mode_enable = false;
- adapter->dcb_set_bitmap = 0x00;
- adapter->dcbx_cap = DCB_CAP_DCBX_HOST | DCB_CAP_DCBX_VER_CEE;
- memcpy(&adapter->temp_dcb_cfg, &adapter->dcb_cfg,
- sizeof(adapter->temp_dcb_cfg));
-
+ ixgbe_init_dcb(adapter);
#endif
/* default flow control settings */
@@ -9495,7 +9521,8 @@ skip_sriov:
netdev->priv_flags |= IFF_SUPP_NOFCS;
#ifdef CONFIG_IXGBE_DCB
- netdev->dcbnl_ops = &dcbnl_ops;
+ if (adapter->flags & IXGBE_FLAG_DCB_CAPABLE)
+ netdev->dcbnl_ops = &dcbnl_ops;
#endif
#ifdef IXGBE_FCOE
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
index cd6c1dd..da3d835 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
@@ -548,6 +548,7 @@ struct ixgbe_thermal_sensor_data {
/* DCB registers */
#define MAX_TRAFFIC_CLASS 8
#define X540_TRAFFIC_CLASS 4
+#define DEF_TRAFFIC_CLASS 1
#define IXGBE_RMCS 0x03D00
#define IXGBE_DPMCS 0x07F40
#define IXGBE_PDPMCS 0x0CD00
--
2.5.5
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