net: qed: introduce critical fan failure handler

Fan failure is sent by firmware, driver reacts on this error with
newly introduced notification path. It will collect dump and shut down
the device to prevent physical breakage

Signed-off-by: Ariel Elior <ariel.elior@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/qlogic/qed/qed_hsi.h b/drivers/net/ethernet/qlogic/qed/qed_hsi.h
index 21d53b00c2e6ed52fbc1cde1bbbffd439ff83201..ab042b8357971687178bc15364bd8253b2f4d879 100644 (file)
--- a/drivers/net/ethernet/qlogic/qed/qed_hsi.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_hsi.h
@@ -12761,7 +12761,7 @@ enum MFW_DRV_MSG_TYPE {
        MFW_DRV_MSG_GET_FCOE_STATS,
        MFW_DRV_MSG_GET_ISCSI_STATS,
        MFW_DRV_MSG_GET_RDMA_STATS,
-       MFW_DRV_MSG_BW_UPDATE10,
+       MFW_DRV_MSG_FAILURE_DETECTED,
        MFW_DRV_MSG_TRANSCEIVER_STATE_CHANGE,
        MFW_DRV_MSG_BW_UPDATE11,
        MFW_DRV_MSG_RESERVED,

diff --git a/drivers/net/ethernet/qlogic/qed/qed_mcp.c b/drivers/net/ethernet/qlogic/qed/qed_mcp.c
index db7cf120527af4271967afb7d130b50a515e3f41..d5be2d2046c644ba2850f43f75a3b378f8efabef 100644 (file)
--- a/drivers/net/ethernet/qlogic/qed/qed_mcp.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_mcp.c
@@ -1706,6 +1706,17 @@ static void qed_mcp_update_stag(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
                    &resp, &param);
 }
 
+static void qed_mcp_handle_fan_failure(struct qed_hwfn *p_hwfn,
+                                      struct qed_ptt *p_ptt)
+{
+       /* A single notification should be sent to upper driver in CMT mode */
+       if (p_hwfn != QED_LEADING_HWFN(p_hwfn->cdev))
+               return;
+
+       qed_hw_err_notify(p_hwfn, p_ptt, QED_HW_ERR_FAN_FAIL,
+                         "Fan failure was detected on the network interface card and it's going to be shut down.\n");
+}
+
 void qed_mcp_read_ufp_config(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
 {
        struct public_func shmem_info;
@@ -1852,6 +1863,9 @@ int qed_mcp_handle_events(struct qed_hwfn *p_hwfn,
                case MFW_DRV_MSG_S_TAG_UPDATE:
                        qed_mcp_update_stag(p_hwfn, p_ptt);
                        break;
+               case MFW_DRV_MSG_FAILURE_DETECTED:
+                       qed_mcp_handle_fan_failure(p_hwfn, p_ptt);
+                       break;
                case MFW_DRV_MSG_GET_TLV_REQ:
                        qed_mfw_tlv_req(p_hwfn);
                        break;