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net: qed: introduce critical fan failure handler

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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>
This commit is contained in:
Igor Russkikh 2020-05-14 12:57:25 +03:00 committed by David S. Miller
parent 5144e9f439
commit 3e99c21110
2 changed files with 15 additions and 1 deletions
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2
drivers/net/ethernet/qlogic/qed/qed_hsi.h
View file

@ -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,

14
drivers/net/ethernet/qlogic/qed/qed_mcp.c
View file

@ -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;