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Commit 9816b614 authored by Kalderon, Michal's avatar Kalderon, Michal Committed by David S. Miller
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qed: iWARP CM add error handling 

This patch introduces error handling for errors that occurred during
connection establishment.
Signed-off-by: default avatarMichal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: default avatarYuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: default avatarAriel Elior <Ariel.Elior@cavium.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent fc4c6065
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Showing with 190 additions and 2 deletions
drivers/net/ethernet/qlogic/qed/qed_iwarp.c
View file @ 9816b614
......@@ -1001,12 +1001,75 @@ qed_iwarp_mpa_complete(struct qed_hwfn *p_hwfn,
ep->state = QED_IWARP_EP_ESTABLISHED;
params.status = 0;
break;
case IWARP_CONN_ERROR_MPA_TIMEOUT:
DP_NOTICE(p_hwfn, "%s(0x%x) MPA timeout\n",
QED_IWARP_CONNECT_MODE_STRING(ep), ep->cid);
params.status = -EBUSY;
break;
case IWARP_CONN_ERROR_MPA_ERROR_REJECT:
DP_NOTICE(p_hwfn, "%s(0x%x) MPA Reject\n",
QED_IWARP_CONNECT_MODE_STRING(ep), ep->cid);
params.status = -ECONNREFUSED;
break;
case IWARP_CONN_ERROR_MPA_RST:
DP_NOTICE(p_hwfn, "%s(0x%x) MPA reset(tcp cid: 0x%x)\n",
QED_IWARP_CONNECT_MODE_STRING(ep), ep->cid,
ep->tcp_cid);
params.status = -ECONNRESET;
break;
case IWARP_CONN_ERROR_MPA_FIN:
DP_NOTICE(p_hwfn, "%s(0x%x) MPA received FIN\n",
QED_IWARP_CONNECT_MODE_STRING(ep), ep->cid);
params.status = -ECONNREFUSED;
break;
case IWARP_CONN_ERROR_MPA_INSUF_IRD:
DP_NOTICE(p_hwfn, "%s(0x%x) MPA insufficient ird\n",
QED_IWARP_CONNECT_MODE_STRING(ep), ep->cid);
params.status = -ECONNREFUSED;
break;
case IWARP_CONN_ERROR_MPA_RTR_MISMATCH:
DP_NOTICE(p_hwfn, "%s(0x%x) MPA RTR MISMATCH\n",
QED_IWARP_CONNECT_MODE_STRING(ep), ep->cid);
params.status = -ECONNREFUSED;
break;
case IWARP_CONN_ERROR_MPA_INVALID_PACKET:
DP_NOTICE(p_hwfn, "%s(0x%x) MPA Invalid Packet\n",
QED_IWARP_CONNECT_MODE_STRING(ep), ep->cid);
params.status = -ECONNREFUSED;
break;
case IWARP_CONN_ERROR_MPA_LOCAL_ERROR:
DP_NOTICE(p_hwfn, "%s(0x%x) MPA Local Error\n",
QED_IWARP_CONNECT_MODE_STRING(ep), ep->cid);
params.status = -ECONNREFUSED;
break;
case IWARP_CONN_ERROR_MPA_TERMINATE:
DP_NOTICE(p_hwfn, "%s(0x%x) MPA TERMINATE\n",
QED_IWARP_CONNECT_MODE_STRING(ep), ep->cid);
params.status = -ECONNREFUSED;
break;
default:
params.status = -ECONNRESET;
break;
}
ep->event_cb(ep->cb_context, &params);
/* on passive side, if there is no associated QP (REJECT) we need to
* return the ep to the pool, (in the regular case we add an element
* in accept instead of this one.
* In both cases we need to remove it from the ep_list.
*/
if (fw_return_code != RDMA_RETURN_OK) {
ep->tcp_cid = QED_IWARP_INVALID_TCP_CID;
if ((ep->connect_mode == TCP_CONNECT_PASSIVE) &&
(!ep->qp)) { /* Rejected */
qed_iwarp_return_ep(p_hwfn, ep);
} else {
spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock);
list_del(&ep->list_entry);
spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock);
}
}
}
static void
......@@ -2011,6 +2074,42 @@ void qed_iwarp_exception_received(struct qed_hwfn *p_hwfn,
params.event = QED_IWARP_EVENT_DISCONNECT;
event_cb = true;
break;
case IWARP_EXCEPTION_DETECTED_RQ_EMPTY:
params.event = QED_IWARP_EVENT_RQ_EMPTY;
event_cb = true;
break;
case IWARP_EXCEPTION_DETECTED_IRQ_FULL:
params.event = QED_IWARP_EVENT_IRQ_FULL;
event_cb = true;
break;
case IWARP_EXCEPTION_DETECTED_LLP_TIMEOUT:
params.event = QED_IWARP_EVENT_LLP_TIMEOUT;
event_cb = true;
break;
case IWARP_EXCEPTION_DETECTED_REMOTE_PROTECTION_ERROR:
params.event = QED_IWARP_EVENT_REMOTE_PROTECTION_ERROR;
event_cb = true;
break;
case IWARP_EXCEPTION_DETECTED_CQ_OVERFLOW:
params.event = QED_IWARP_EVENT_CQ_OVERFLOW;
event_cb = true;
break;
case IWARP_EXCEPTION_DETECTED_LOCAL_CATASTROPHIC:
params.event = QED_IWARP_EVENT_QP_CATASTROPHIC;
event_cb = true;
break;
case IWARP_EXCEPTION_DETECTED_LOCAL_ACCESS_ERROR:
params.event = QED_IWARP_EVENT_LOCAL_ACCESS_ERROR;
event_cb = true;
break;
case IWARP_EXCEPTION_DETECTED_REMOTE_OPERATION_ERROR:
params.event = QED_IWARP_EVENT_REMOTE_OPERATION_ERROR;
event_cb = true;
break;
case IWARP_EXCEPTION_DETECTED_TERMINATE_RECEIVED:
params.event = QED_IWARP_EVENT_TERMINATE_RECEIVED;
event_cb = true;
break;
default:
DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
"Unhandled exception received...fw_ret_code=%d\n",
......@@ -2025,6 +2124,66 @@ void qed_iwarp_exception_received(struct qed_hwfn *p_hwfn,
}
}
static void
qed_iwarp_tcp_connect_unsuccessful(struct qed_hwfn *p_hwfn,
struct qed_iwarp_ep *ep, u8 fw_return_code)
{
struct qed_iwarp_cm_event_params params;
memset(&params, 0, sizeof(params));
params.event = QED_IWARP_EVENT_ACTIVE_COMPLETE;
params.ep_context = ep;
params.cm_info = &ep->cm_info;
ep->state = QED_IWARP_EP_CLOSED;
switch (fw_return_code) {
case IWARP_CONN_ERROR_TCP_CONNECT_INVALID_PACKET:
DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
"%s(0x%x) TCP connect got invalid packet\n",
QED_IWARP_CONNECT_MODE_STRING(ep), ep->tcp_cid);
params.status = -ECONNRESET;
break;
case IWARP_CONN_ERROR_TCP_CONNECTION_RST:
DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
"%s(0x%x) TCP Connection Reset\n",
QED_IWARP_CONNECT_MODE_STRING(ep), ep->tcp_cid);
params.status = -ECONNRESET;
break;
case IWARP_CONN_ERROR_TCP_CONNECT_TIMEOUT:
DP_NOTICE(p_hwfn, "%s(0x%x) TCP timeout\n",
QED_IWARP_CONNECT_MODE_STRING(ep), ep->tcp_cid);
params.status = -EBUSY;
break;
case IWARP_CONN_ERROR_MPA_NOT_SUPPORTED_VER:
DP_NOTICE(p_hwfn, "%s(0x%x) MPA not supported VER\n",
QED_IWARP_CONNECT_MODE_STRING(ep), ep->tcp_cid);
params.status = -ECONNREFUSED;
break;
case IWARP_CONN_ERROR_MPA_INVALID_PACKET:
DP_NOTICE(p_hwfn, "%s(0x%x) MPA Invalid Packet\n",
QED_IWARP_CONNECT_MODE_STRING(ep), ep->tcp_cid);
params.status = -ECONNRESET;
break;
default:
DP_ERR(p_hwfn,
"%s(0x%x) Unexpected return code tcp connect: %d\n",
QED_IWARP_CONNECT_MODE_STRING(ep),
ep->tcp_cid, fw_return_code);
params.status = -ECONNRESET;
break;
}
if (ep->connect_mode == TCP_CONNECT_PASSIVE) {
ep->tcp_cid = QED_IWARP_INVALID_TCP_CID;
qed_iwarp_return_ep(p_hwfn, ep);
} else {
ep->event_cb(ep->cb_context, &params);
spin_lock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock);
list_del(&ep->list_entry);
spin_unlock_bh(&p_hwfn->p_rdma_info->iwarp.iw_lock);
}
}
void
qed_iwarp_connect_complete(struct qed_hwfn *p_hwfn,
struct qed_iwarp_ep *ep, u8 fw_return_code)
......@@ -2038,9 +2197,17 @@ qed_iwarp_connect_complete(struct qed_hwfn *p_hwfn,
ep->syn = NULL;
/* If connect failed - upper layer doesn't know about it */
qed_iwarp_mpa_received(p_hwfn, ep);
if (fw_return_code == RDMA_RETURN_OK)
qed_iwarp_mpa_received(p_hwfn, ep);
else
qed_iwarp_tcp_connect_unsuccessful(p_hwfn, ep,
fw_return_code);
} else {
qed_iwarp_mpa_offload(p_hwfn, ep);
if (fw_return_code == RDMA_RETURN_OK)
qed_iwarp_mpa_offload(p_hwfn, ep);
else
qed_iwarp_tcp_connect_unsuccessful(p_hwfn, ep,
fw_return_code);
}
}
......@@ -2123,6 +2290,18 @@ static int qed_iwarp_async_event(struct qed_hwfn *p_hwfn,
qed_iwarp_cid_cleaned(p_hwfn, cid);
break;
case IWARP_EVENT_TYPE_ASYNC_CQ_OVERFLOW:
DP_NOTICE(p_hwfn, "IWARP_EVENT_TYPE_ASYNC_CQ_OVERFLOW\n");
p_hwfn->p_rdma_info->events.affiliated_event(
p_hwfn->p_rdma_info->events.context,
QED_IWARP_EVENT_CQ_OVERFLOW,
(void *)fw_handle);
break;
default:
DP_ERR(p_hwfn, "Received unexpected async iwarp event %d\n",
fw_event_code);
return -EINVAL;
}
return 0;
}
......
include/linux/qed/qed_rdma_if.h
View file @ 9816b614
......@@ -476,7 +476,16 @@ enum qed_iwarp_event_type {
QED_IWARP_EVENT_ACTIVE_COMPLETE, /* Active side reply received */
QED_IWARP_EVENT_DISCONNECT,
QED_IWARP_EVENT_CLOSE,
QED_IWARP_EVENT_IRQ_FULL,
QED_IWARP_EVENT_RQ_EMPTY,
QED_IWARP_EVENT_LLP_TIMEOUT,
QED_IWARP_EVENT_REMOTE_PROTECTION_ERROR,
QED_IWARP_EVENT_CQ_OVERFLOW,
QED_IWARP_EVENT_QP_CATASTROPHIC,
QED_IWARP_EVENT_ACTIVE_MPA_REPLY,
QED_IWARP_EVENT_LOCAL_ACCESS_ERROR,
QED_IWARP_EVENT_REMOTE_OPERATION_ERROR,
QED_IWARP_EVENT_TERMINATE_RECEIVED
};
enum qed_tcp_ip_version {
......
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