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path: root/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
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Diffstat (limited to 'drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c')
-rw-r--r--drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c121
1 files changed, 120 insertions, 1 deletions
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 5e74599b05c7..faef7b19a529 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -3482,10 +3482,15 @@ static void bnx2x_handle_eee_event(struct bnx2x *bp)
bnx2x_fw_command(bp, DRV_MSG_CODE_EEE_RESULTS_ACK, 0);
}
+#define BNX2X_UPDATE_DRV_INFO_IND_LENGTH (20)
+#define BNX2X_UPDATE_DRV_INFO_IND_COUNT (25)
+
static void bnx2x_handle_drv_info_req(struct bnx2x *bp)
{
enum drv_info_opcode op_code;
u32 drv_info_ctl = SHMEM2_RD(bp, drv_info_control);
+ bool release = false;
+ int wait;
/* if drv_info version supported by MFW doesn't match - send NACK */
if ((drv_info_ctl & DRV_INFO_CONTROL_VER_MASK) != DRV_INFO_CUR_VER) {
@@ -3496,6 +3501,9 @@ static void bnx2x_handle_drv_info_req(struct bnx2x *bp)
op_code = (drv_info_ctl & DRV_INFO_CONTROL_OP_CODE_MASK) >>
DRV_INFO_CONTROL_OP_CODE_SHIFT;
+ /* Must prevent other flows from accessing drv_info_to_mcp */
+ mutex_lock(&bp->drv_info_mutex);
+
memset(&bp->slowpath->drv_info_to_mcp, 0,
sizeof(union drv_info_to_mcp));
@@ -3512,7 +3520,7 @@ static void bnx2x_handle_drv_info_req(struct bnx2x *bp)
default:
/* if op code isn't supported - send NACK */
bnx2x_fw_command(bp, DRV_MSG_CODE_DRV_INFO_NACK, 0);
- return;
+ goto out;
}
/* if we got drv_info attn from MFW then these fields are defined in
@@ -3524,6 +3532,106 @@ static void bnx2x_handle_drv_info_req(struct bnx2x *bp)
U64_HI(bnx2x_sp_mapping(bp, drv_info_to_mcp)));
bnx2x_fw_command(bp, DRV_MSG_CODE_DRV_INFO_ACK, 0);
+
+ /* Since possible management wants both this and get_driver_version
+ * need to wait until management notifies us it finished utilizing
+ * the buffer.
+ */
+ if (!SHMEM2_HAS(bp, mfw_drv_indication)) {
+ DP(BNX2X_MSG_MCP, "Management does not support indication\n");
+ } else if (!bp->drv_info_mng_owner) {
+ u32 bit = MFW_DRV_IND_READ_DONE_OFFSET((BP_ABS_FUNC(bp) >> 1));
+
+ for (wait = 0; wait < BNX2X_UPDATE_DRV_INFO_IND_COUNT; wait++) {
+ u32 indication = SHMEM2_RD(bp, mfw_drv_indication);
+
+ /* Management is done; need to clear indication */
+ if (indication & bit) {
+ SHMEM2_WR(bp, mfw_drv_indication,
+ indication & ~bit);
+ release = true;
+ break;
+ }
+
+ msleep(BNX2X_UPDATE_DRV_INFO_IND_LENGTH);
+ }
+ }
+ if (!release) {
+ DP(BNX2X_MSG_MCP, "Management did not release indication\n");
+ bp->drv_info_mng_owner = true;
+ }
+
+out:
+ mutex_unlock(&bp->drv_info_mutex);
+}
+
+static u32 bnx2x_update_mng_version_utility(u8 *version, bool bnx2x_format)
+{
+ u8 vals[4];
+ int i = 0;
+
+ if (bnx2x_format) {
+ i = sscanf(version, "1.%c%hhd.%hhd.%hhd",
+ &vals[0], &vals[1], &vals[2], &vals[3]);
+ if (i > 0)
+ vals[0] -= '0';
+ } else {
+ i = sscanf(version, "%hhd.%hhd.%hhd.%hhd",
+ &vals[0], &vals[1], &vals[2], &vals[3]);
+ }
+
+ while (i < 4)
+ vals[i++] = 0;
+
+ return (vals[0] << 24) | (vals[1] << 16) | (vals[2] << 8) | vals[3];
+}
+
+void bnx2x_update_mng_version(struct bnx2x *bp)
+{
+ u32 iscsiver = DRV_VER_NOT_LOADED;
+ u32 fcoever = DRV_VER_NOT_LOADED;
+ u32 ethver = DRV_VER_NOT_LOADED;
+ int idx = BP_FW_MB_IDX(bp);
+ u8 *version;
+
+ if (!SHMEM2_HAS(bp, func_os_drv_ver))
+ return;
+
+ mutex_lock(&bp->drv_info_mutex);
+ /* Must not proceed when `bnx2x_handle_drv_info_req' is feasible */
+ if (bp->drv_info_mng_owner)
+ goto out;
+
+ if (bp->state != BNX2X_STATE_OPEN)
+ goto out;
+
+ /* Parse ethernet driver version */
+ ethver = bnx2x_update_mng_version_utility(DRV_MODULE_VERSION, true);
+ if (!CNIC_LOADED(bp))
+ goto out;
+
+ /* Try getting storage driver version via cnic */
+ memset(&bp->slowpath->drv_info_to_mcp, 0,
+ sizeof(union drv_info_to_mcp));
+ bnx2x_drv_info_iscsi_stat(bp);
+ version = bp->slowpath->drv_info_to_mcp.iscsi_stat.version;
+ iscsiver = bnx2x_update_mng_version_utility(version, false);
+
+ memset(&bp->slowpath->drv_info_to_mcp, 0,
+ sizeof(union drv_info_to_mcp));
+ bnx2x_drv_info_fcoe_stat(bp);
+ version = bp->slowpath->drv_info_to_mcp.fcoe_stat.version;
+ fcoever = bnx2x_update_mng_version_utility(version, false);
+
+out:
+ SHMEM2_WR(bp, func_os_drv_ver[idx].versions[DRV_PERS_ETHERNET], ethver);
+ SHMEM2_WR(bp, func_os_drv_ver[idx].versions[DRV_PERS_ISCSI], iscsiver);
+ SHMEM2_WR(bp, func_os_drv_ver[idx].versions[DRV_PERS_FCOE], fcoever);
+
+ mutex_unlock(&bp->drv_info_mutex);
+
+ DP(BNX2X_MSG_MCP, "Setting driver version: ETH [%08x] iSCSI [%08x] FCoE [%08x]\n",
+ ethver, iscsiver, fcoever);
}
static void bnx2x_dcc_event(struct bnx2x *bp, u32 dcc_event)
@@ -9807,6 +9915,10 @@ sp_rtnl_not_reset:
bnx2x_dcbx_resume_hw_tx(bp);
}
+ if (test_and_clear_bit(BNX2X_SP_RTNL_GET_DRV_VERSION,
+ &bp->sp_rtnl_state))
+ bnx2x_update_mng_version(bp);
+
/* work which needs rtnl lock not-taken (as it takes the lock itself and
* can be called from other contexts as well)
*/
@@ -11757,6 +11869,8 @@ static int bnx2x_init_bp(struct bnx2x *bp)
mutex_init(&bp->port.phy_mutex);
mutex_init(&bp->fw_mb_mutex);
+ mutex_init(&bp->drv_info_mutex);
+ bp->drv_info_mng_owner = false;
spin_lock_init(&bp->stats_lock);
sema_init(&bp->stats_sema, 1);
@@ -13794,6 +13908,7 @@ static int bnx2x_drv_ctl(struct net_device *dev, struct drv_ctl_info *ctl)
REG_WR(bp, scratch_offset + i,
*(host_addr + i/4));
}
+ bnx2x_schedule_sp_rtnl(bp, BNX2X_SP_RTNL_GET_DRV_VERSION, 0);
break;
}
@@ -13811,6 +13926,7 @@ static int bnx2x_drv_ctl(struct net_device *dev, struct drv_ctl_info *ctl)
cap &= ~DRV_FLAGS_CAPABILITIES_LOADED_FCOE;
SHMEM2_WR(bp, drv_capabilities_flag[idx], cap);
}
+ bnx2x_schedule_sp_rtnl(bp, BNX2X_SP_RTNL_GET_DRV_VERSION, 0);
break;
}
@@ -13916,6 +14032,9 @@ static int bnx2x_register_cnic(struct net_device *dev, struct cnic_ops *ops,
rcu_assign_pointer(bp->cnic_ops, ops);
+ /* Schedule driver to read CNIC driver versions */
+ bnx2x_schedule_sp_rtnl(bp, BNX2X_SP_RTNL_GET_DRV_VERSION, 0);
+
return 0;
}

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