bnx2x: Activate LFA

In case Link Flap Avoidance feature is supported by the MCP, bnx2x will enable
it, and will pass the appropriate parameter when load request is sent to
the MCP.

Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
index 54d522da1aa77b0087471ffa7bebdc496b4c90bf..2d30979e8dad773c94dd0149938906232d256007 100644 (file)
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
@@ -2248,7 +2248,8 @@ int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
                         DRV_PULSE_SEQ_MASK);
                BNX2X_DEV_INFO("drv_pulse 0x%x\n", bp->fw_drv_pulse_wr_seq);
 
-               load_code = bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_REQ, 0);
+               load_code = bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_REQ,
+                                            DRV_MSG_CODE_LOAD_REQ_WITH_LFA);
                if (!load_code) {
                        BNX2X_ERR("MCP response failure, aborting\n");
                        rc = -EBUSY;

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h
index 7eaa74b78a5b10f1d4fa5aa073eef15b46f846e6..f478bedf9e9e6f396664981a4bdf969f0fed1cd2 100644 (file)
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h
@@ -2159,6 +2159,14 @@ struct shmem2_region {
        #define SHMEM_EEE_TIME_OUTPUT_BIT          0x80000000
 
        u32 sizeof_port_stats;
+
+       /* Link Flap Avoidance */
+       u32 lfa_host_addr[PORT_MAX];
+       u32 reserved1;
+
+       u32 reserved2;                          /* Offset 0x148 */
+       u32 reserved3;                          /* Offset 0x14C */
+       u32 reserved4;                          /* Offset 0x150 */
 };
 
 

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 54b8c1f19d39aeb256e947fc2703fa0475a5f6e3..4f33170a18d2b1b53c9a127d874250cdd7d96fa9 100644 (file)
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -6267,6 +6267,10 @@ void bnx2x_pf_disable(struct bnx2x *bp)
 static void bnx2x__common_init_phy(struct bnx2x *bp)
 {
        u32 shmem_base[2], shmem2_base[2];
+       /* Avoid common init in case MFW supports LFA */
+       if (SHMEM2_RD(bp, size) >
+           (u32)offsetof(struct shmem2_region, lfa_host_addr[BP_PORT(bp)]))
+               return;
        shmem_base[0] =  bp->common.shmem_base;
        shmem2_base[0] = bp->common.shmem2_base;
        if (!CHIP_IS_E1x(bp)) {
@@ -9862,6 +9866,14 @@ static void __devinit bnx2x_get_common_hwinfo(struct bnx2x *bp)
 
        bp->link_params.shmem_base = bp->common.shmem_base;
        bp->link_params.shmem2_base = bp->common.shmem2_base;
+       if (SHMEM2_RD(bp, size) >
+           (u32)offsetof(struct shmem2_region, lfa_host_addr[BP_PORT(bp)]))
+               bp->link_params.lfa_base =
+               REG_RD(bp, bp->common.shmem2_base +
+                      (u32)offsetof(struct shmem2_region,
+                                    lfa_host_addr[BP_PORT(bp)]));
+       else
+               bp->link_params.lfa_base = 0;
        BNX2X_DEV_INFO("shmem offset 0x%x  shmem2 offset 0x%x\n",
                       bp->common.shmem_base, bp->common.shmem2_base);