RDMA/cxgb3: Add driver for Chelsio T3 RNIC
Add an RDMA/iWARP driver for the Chelsio T3 1GbE and 10GbE adapters. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Steve Wise
committed by
Roland Dreier
Roland Dreier
parent
c7f743a669
commit
b038ced7b3
231
drivers/infiniband/hw/cxgb3/iwch_ev.c
Normal file
231
drivers/infiniband/hw/cxgb3/iwch_ev.c
Normal file
@@ -0,0 +1,231 @@
|
||||
/*
|
||||
* Copyright (c) 2006 Chelsio, Inc. All rights reserved.
|
||||
* Copyright (c) 2006 Open Grid Computing, Inc. All rights reserved.
|
||||
*
|
||||
* This software is available to you under a choice of one of two
|
||||
* licenses. You may choose to be licensed under the terms of the GNU
|
||||
* General Public License (GPL) Version 2, available from the file
|
||||
* COPYING in the main directory of this source tree, or the
|
||||
* OpenIB.org BSD license below:
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or
|
||||
* without modification, are permitted provided that the following
|
||||
* conditions are met:
|
||||
*
|
||||
* - Redistributions of source code must retain the above
|
||||
* copyright notice, this list of conditions and the following
|
||||
* disclaimer.
|
||||
*
|
||||
* - Redistributions in binary form must reproduce the above
|
||||
* copyright notice, this list of conditions and the following
|
||||
* disclaimer in the documentation and/or other materials
|
||||
* provided with the distribution.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
||||
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
||||
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
||||
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||||
* SOFTWARE.
|
||||
*/
|
||||
#include <linux/slab.h>
|
||||
#include <linux/mman.h>
|
||||
#include <net/sock.h>
|
||||
#include "iwch_provider.h"
|
||||
#include "iwch.h"
|
||||
#include "iwch_cm.h"
|
||||
#include "cxio_hal.h"
|
||||
#include "cxio_wr.h"
|
||||
|
||||
static void post_qp_event(struct iwch_dev *rnicp, struct iwch_cq *chp,
|
||||
struct respQ_msg_t *rsp_msg,
|
||||
enum ib_event_type ib_event,
|
||||
int send_term)
|
||||
{
|
||||
struct ib_event event;
|
||||
struct iwch_qp_attributes attrs;
|
||||
struct iwch_qp *qhp;
|
||||
|
||||
printk(KERN_ERR "%s - AE qpid 0x%x opcode %d status 0x%x "
|
||||
"type %d wrid.hi 0x%x wrid.lo 0x%x \n", __FUNCTION__,
|
||||
CQE_QPID(rsp_msg->cqe), CQE_OPCODE(rsp_msg->cqe),
|
||||
CQE_STATUS(rsp_msg->cqe), CQE_TYPE(rsp_msg->cqe),
|
||||
CQE_WRID_HI(rsp_msg->cqe), CQE_WRID_LOW(rsp_msg->cqe));
|
||||
|
||||
spin_lock(&rnicp->lock);
|
||||
qhp = get_qhp(rnicp, CQE_QPID(rsp_msg->cqe));
|
||||
|
||||
if (!qhp) {
|
||||
printk(KERN_ERR "%s unaffiliated error 0x%x qpid 0x%x\n",
|
||||
__FUNCTION__, CQE_STATUS(rsp_msg->cqe),
|
||||
CQE_QPID(rsp_msg->cqe));
|
||||
spin_unlock(&rnicp->lock);
|
||||
return;
|
||||
}
|
||||
|
||||
if ((qhp->attr.state == IWCH_QP_STATE_ERROR) ||
|
||||
(qhp->attr.state == IWCH_QP_STATE_TERMINATE)) {
|
||||
PDBG("%s AE received after RTS - "
|
||||
"qp state %d qpid 0x%x status 0x%x\n", __FUNCTION__,
|
||||
qhp->attr.state, qhp->wq.qpid, CQE_STATUS(rsp_msg->cqe));
|
||||
spin_unlock(&rnicp->lock);
|
||||
return;
|
||||
}
|
||||
|
||||
atomic_inc(&qhp->refcnt);
|
||||
spin_unlock(&rnicp->lock);
|
||||
|
||||
event.event = ib_event;
|
||||
event.device = chp->ibcq.device;
|
||||
if (ib_event == IB_EVENT_CQ_ERR)
|
||||
event.element.cq = &chp->ibcq;
|
||||
else
|
||||
event.element.qp = &qhp->ibqp;
|
||||
|
||||
if (qhp->ibqp.event_handler)
|
||||
(*qhp->ibqp.event_handler)(&event, qhp->ibqp.qp_context);
|
||||
|
||||
if (qhp->attr.state == IWCH_QP_STATE_RTS) {
|
||||
attrs.next_state = IWCH_QP_STATE_TERMINATE;
|
||||
iwch_modify_qp(qhp->rhp, qhp, IWCH_QP_ATTR_NEXT_STATE,
|
||||
&attrs, 1);
|
||||
if (send_term)
|
||||
iwch_post_terminate(qhp, rsp_msg);
|
||||
}
|
||||
|
||||
if (atomic_dec_and_test(&qhp->refcnt))
|
||||
wake_up(&qhp->wait);
|
||||
}
|
||||
|
||||
void iwch_ev_dispatch(struct cxio_rdev *rdev_p, struct sk_buff *skb)
|
||||
{
|
||||
struct iwch_dev *rnicp;
|
||||
struct respQ_msg_t *rsp_msg = (struct respQ_msg_t *) skb->data;
|
||||
struct iwch_cq *chp;
|
||||
struct iwch_qp *qhp;
|
||||
u32 cqid = RSPQ_CQID(rsp_msg);
|
||||
|
||||
rnicp = (struct iwch_dev *) rdev_p->ulp;
|
||||
spin_lock(&rnicp->lock);
|
||||
chp = get_chp(rnicp, cqid);
|
||||
qhp = get_qhp(rnicp, CQE_QPID(rsp_msg->cqe));
|
||||
if (!chp || !qhp) {
|
||||
printk(KERN_ERR MOD "BAD AE cqid 0x%x qpid 0x%x opcode %d "
|
||||
"status 0x%x type %d wrid.hi 0x%x wrid.lo 0x%x \n",
|
||||
cqid, CQE_QPID(rsp_msg->cqe),
|
||||
CQE_OPCODE(rsp_msg->cqe), CQE_STATUS(rsp_msg->cqe),
|
||||
CQE_TYPE(rsp_msg->cqe), CQE_WRID_HI(rsp_msg->cqe),
|
||||
CQE_WRID_LOW(rsp_msg->cqe));
|
||||
spin_unlock(&rnicp->lock);
|
||||
goto out;
|
||||
}
|
||||
iwch_qp_add_ref(&qhp->ibqp);
|
||||
atomic_inc(&chp->refcnt);
|
||||
spin_unlock(&rnicp->lock);
|
||||
|
||||
/*
|
||||
* 1) completion of our sending a TERMINATE.
|
||||
* 2) incoming TERMINATE message.
|
||||
*/
|
||||
if ((CQE_OPCODE(rsp_msg->cqe) == T3_TERMINATE) &&
|
||||
(CQE_STATUS(rsp_msg->cqe) == 0)) {
|
||||
if (SQ_TYPE(rsp_msg->cqe)) {
|
||||
PDBG("%s QPID 0x%x ep %p disconnecting\n",
|
||||
__FUNCTION__, qhp->wq.qpid, qhp->ep);
|
||||
iwch_ep_disconnect(qhp->ep, 0, GFP_ATOMIC);
|
||||
} else {
|
||||
PDBG("%s post REQ_ERR AE QPID 0x%x\n", __FUNCTION__,
|
||||
qhp->wq.qpid);
|
||||
post_qp_event(rnicp, chp, rsp_msg,
|
||||
IB_EVENT_QP_REQ_ERR, 0);
|
||||
iwch_ep_disconnect(qhp->ep, 0, GFP_ATOMIC);
|
||||
}
|
||||
goto done;
|
||||
}
|
||||
|
||||
/* Bad incoming Read request */
|
||||
if (SQ_TYPE(rsp_msg->cqe) &&
|
||||
(CQE_OPCODE(rsp_msg->cqe) == T3_READ_RESP)) {
|
||||
post_qp_event(rnicp, chp, rsp_msg, IB_EVENT_QP_REQ_ERR, 1);
|
||||
goto done;
|
||||
}
|
||||
|
||||
/* Bad incoming write */
|
||||
if (RQ_TYPE(rsp_msg->cqe) &&
|
||||
(CQE_OPCODE(rsp_msg->cqe) == T3_RDMA_WRITE)) {
|
||||
post_qp_event(rnicp, chp, rsp_msg, IB_EVENT_QP_REQ_ERR, 1);
|
||||
goto done;
|
||||
}
|
||||
|
||||
switch (CQE_STATUS(rsp_msg->cqe)) {
|
||||
|
||||
/* Completion Events */
|
||||
case TPT_ERR_SUCCESS:
|
||||
|
||||
/*
|
||||
* Confirm the destination entry if this is a RECV completion.
|
||||
*/
|
||||
if (qhp->ep && SQ_TYPE(rsp_msg->cqe))
|
||||
dst_confirm(qhp->ep->dst);
|
||||
(*chp->ibcq.comp_handler)(&chp->ibcq, chp->ibcq.cq_context);
|
||||
break;
|
||||
|
||||
case TPT_ERR_STAG:
|
||||
case TPT_ERR_PDID:
|
||||
case TPT_ERR_QPID:
|
||||
case TPT_ERR_ACCESS:
|
||||
case TPT_ERR_WRAP:
|
||||
case TPT_ERR_BOUND:
|
||||
case TPT_ERR_INVALIDATE_SHARED_MR:
|
||||
case TPT_ERR_INVALIDATE_MR_WITH_MW_BOUND:
|
||||
printk(KERN_ERR "%s - CQE Err qpid 0x%x opcode %d status 0x%x "
|
||||
"type %d wrid.hi 0x%x wrid.lo 0x%x \n", __FUNCTION__,
|
||||
CQE_QPID(rsp_msg->cqe), CQE_OPCODE(rsp_msg->cqe),
|
||||
CQE_STATUS(rsp_msg->cqe), CQE_TYPE(rsp_msg->cqe),
|
||||
CQE_WRID_HI(rsp_msg->cqe), CQE_WRID_LOW(rsp_msg->cqe));
|
||||
(*chp->ibcq.comp_handler)(&chp->ibcq, chp->ibcq.cq_context);
|
||||
post_qp_event(rnicp, chp, rsp_msg, IB_EVENT_QP_ACCESS_ERR, 1);
|
||||
break;
|
||||
|
||||
/* Device Fatal Errors */
|
||||
case TPT_ERR_ECC:
|
||||
case TPT_ERR_ECC_PSTAG:
|
||||
case TPT_ERR_INTERNAL_ERR:
|
||||
post_qp_event(rnicp, chp, rsp_msg, IB_EVENT_DEVICE_FATAL, 1);
|
||||
break;
|
||||
|
||||
/* QP Fatal Errors */
|
||||
case TPT_ERR_OUT_OF_RQE:
|
||||
case TPT_ERR_PBL_ADDR_BOUND:
|
||||
case TPT_ERR_CRC:
|
||||
case TPT_ERR_MARKER:
|
||||
case TPT_ERR_PDU_LEN_ERR:
|
||||
case TPT_ERR_DDP_VERSION:
|
||||
case TPT_ERR_RDMA_VERSION:
|
||||
case TPT_ERR_OPCODE:
|
||||
case TPT_ERR_DDP_QUEUE_NUM:
|
||||
case TPT_ERR_MSN:
|
||||
case TPT_ERR_TBIT:
|
||||
case TPT_ERR_MO:
|
||||
case TPT_ERR_MSN_GAP:
|
||||
case TPT_ERR_MSN_RANGE:
|
||||
case TPT_ERR_RQE_ADDR_BOUND:
|
||||
case TPT_ERR_IRD_OVERFLOW:
|
||||
post_qp_event(rnicp, chp, rsp_msg, IB_EVENT_QP_FATAL, 1);
|
||||
break;
|
||||
|
||||
default:
|
||||
printk(KERN_ERR MOD "Unknown T3 status 0x%x QPID 0x%x\n",
|
||||
CQE_STATUS(rsp_msg->cqe), qhp->wq.qpid);
|
||||
post_qp_event(rnicp, chp, rsp_msg, IB_EVENT_QP_FATAL, 1);
|
||||
break;
|
||||
}
|
||||
done:
|
||||
if (atomic_dec_and_test(&chp->refcnt))
|
||||
wake_up(&chp->wait);
|
||||
iwch_qp_rem_ref(&qhp->ibqp);
|
||||
out:
|
||||
dev_kfree_skb_irq(skb);
|
||||
}
|
||||
Reference in New Issue
Block a user