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path: root/drivers/infiniband/hw/cxgb4/ev.c
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Diffstat (limited to 'drivers/infiniband/hw/cxgb4/ev.c')
-rw-r--r--drivers/infiniband/hw/cxgb4/ev.c111
1 files changed, 76 insertions, 35 deletions
diff --git a/drivers/infiniband/hw/cxgb4/ev.c b/drivers/infiniband/hw/cxgb4/ev.c
index 1a840b2211dd..34211a533d5c 100644
--- a/drivers/infiniband/hw/cxgb4/ev.c
+++ b/drivers/infiniband/hw/cxgb4/ev.c
@@ -35,6 +35,55 @@
#include "iw_cxgb4.h"
+static void print_tpte(struct c4iw_dev *dev, u32 stag)
+{
+ int ret;
+ struct fw_ri_tpte tpte;
+
+ ret = cxgb4_read_tpte(dev->rdev.lldi.ports[0], stag,
+ (__be32 *)&tpte);
+ if (ret) {
+ dev_err(&dev->rdev.lldi.pdev->dev,
+ "%s cxgb4_read_tpte err %d\n", __func__, ret);
+ return;
+ }
+ pr_debug("stag idx 0x%x valid %d key 0x%x state %d pdid %d perm 0x%x ps %d len 0x%llx va 0x%llx\n",
+ stag & 0xffffff00,
+ FW_RI_TPTE_VALID_G(ntohl(tpte.valid_to_pdid)),
+ FW_RI_TPTE_STAGKEY_G(ntohl(tpte.valid_to_pdid)),
+ FW_RI_TPTE_STAGSTATE_G(ntohl(tpte.valid_to_pdid)),
+ FW_RI_TPTE_PDID_G(ntohl(tpte.valid_to_pdid)),
+ FW_RI_TPTE_PERM_G(ntohl(tpte.locread_to_qpid)),
+ FW_RI_TPTE_PS_G(ntohl(tpte.locread_to_qpid)),
+ ((u64)ntohl(tpte.len_hi) << 32) | ntohl(tpte.len_lo),
+ ((u64)ntohl(tpte.va_hi) << 32) | ntohl(tpte.va_lo_fbo));
+}
+
+static void dump_err_cqe(struct c4iw_dev *dev, struct t4_cqe *err_cqe)
+{
+ __be64 *p = (void *)err_cqe;
+
+ dev_err(&dev->rdev.lldi.pdev->dev,
+ "AE qpid %d opcode %d status 0x%x "
+ "type %d len 0x%x wrid.hi 0x%x wrid.lo 0x%x\n",
+ CQE_QPID(err_cqe), CQE_OPCODE(err_cqe),
+ CQE_STATUS(err_cqe), CQE_TYPE(err_cqe), ntohl(err_cqe->len),
+ CQE_WRID_HI(err_cqe), CQE_WRID_LOW(err_cqe));
+
+ pr_debug("%016llx %016llx %016llx %016llx - %016llx %016llx %016llx %016llx\n",
+ be64_to_cpu(p[0]), be64_to_cpu(p[1]), be64_to_cpu(p[2]),
+ be64_to_cpu(p[3]), be64_to_cpu(p[4]), be64_to_cpu(p[5]),
+ be64_to_cpu(p[6]), be64_to_cpu(p[7]));
+
+ /*
+ * Ingress WRITE and READ_RESP errors provide
+ * the offending stag, so parse and log it.
+ */
+ if (RQ_TYPE(err_cqe) && (CQE_OPCODE(err_cqe) == FW_RI_RDMA_WRITE ||
+ CQE_OPCODE(err_cqe) == FW_RI_READ_RESP))
+ print_tpte(dev, CQE_WRID_STAG(err_cqe));
+}
+
static void post_qp_event(struct c4iw_dev *dev, struct c4iw_cq *chp,
struct c4iw_qp *qhp,
struct t4_cqe *err_cqe,
@@ -44,21 +93,7 @@ static void post_qp_event(struct c4iw_dev *dev, struct c4iw_cq *chp,
struct c4iw_qp_attributes attrs;
unsigned long flag;
- if ((qhp->attr.state == C4IW_QP_STATE_ERROR) ||
- (qhp->attr.state == C4IW_QP_STATE_TERMINATE)) {
- pr_err("%s AE after RTS - qpid 0x%x opcode %d status 0x%x "\
- "type %d wrid.hi 0x%x wrid.lo 0x%x\n",
- __func__, CQE_QPID(err_cqe), CQE_OPCODE(err_cqe),
- CQE_STATUS(err_cqe), CQE_TYPE(err_cqe),
- CQE_WRID_HI(err_cqe), CQE_WRID_LOW(err_cqe));
- return;
- }
-
- printk(KERN_ERR MOD "AE qpid 0x%x opcode %d status 0x%x "
- "type %d wrid.hi 0x%x wrid.lo 0x%x\n",
- CQE_QPID(err_cqe), CQE_OPCODE(err_cqe),
- CQE_STATUS(err_cqe), CQE_TYPE(err_cqe),
- CQE_WRID_HI(err_cqe), CQE_WRID_LOW(err_cqe));
+ dump_err_cqe(dev, err_cqe);
if (qhp->attr.state == C4IW_QP_STATE_RTS) {
attrs.next_state = C4IW_QP_STATE_TERMINATE;
@@ -75,9 +110,11 @@ static void post_qp_event(struct c4iw_dev *dev, struct c4iw_cq *chp,
if (qhp->ibqp.event_handler)
(*qhp->ibqp.event_handler)(&event, qhp->ibqp.qp_context);
- spin_lock_irqsave(&chp->comp_handler_lock, flag);
- (*chp->ibcq.comp_handler)(&chp->ibcq, chp->ibcq.cq_context);
- spin_unlock_irqrestore(&chp->comp_handler_lock, flag);
+ if (t4_clear_cq_armed(&chp->cq)) {
+ spin_lock_irqsave(&chp->comp_handler_lock, flag);
+ (*chp->ibcq.comp_handler)(&chp->ibcq, chp->ibcq.cq_context);
+ spin_unlock_irqrestore(&chp->comp_handler_lock, flag);
+ }
}
void c4iw_ev_dispatch(struct c4iw_dev *dev, struct t4_cqe *err_cqe)
@@ -86,16 +123,15 @@ void c4iw_ev_dispatch(struct c4iw_dev *dev, struct t4_cqe *err_cqe)
struct c4iw_qp *qhp;
u32 cqid;
- spin_lock_irq(&dev->lock);
- qhp = get_qhp(dev, CQE_QPID(err_cqe));
+ xa_lock_irq(&dev->qps);
+ qhp = xa_load(&dev->qps, CQE_QPID(err_cqe));
if (!qhp) {
- printk(KERN_ERR MOD "BAD AE qpid 0x%x opcode %d "
- "status 0x%x type %d wrid.hi 0x%x wrid.lo 0x%x\n",
+ pr_err("BAD AE qpid 0x%x opcode %d status 0x%x type %d wrid.hi 0x%x wrid.lo 0x%x\n",
CQE_QPID(err_cqe),
CQE_OPCODE(err_cqe), CQE_STATUS(err_cqe),
CQE_TYPE(err_cqe), CQE_WRID_HI(err_cqe),
CQE_WRID_LOW(err_cqe));
- spin_unlock_irq(&dev->lock);
+ xa_unlock_irq(&dev->qps);
goto out;
}
@@ -105,19 +141,18 @@ void c4iw_ev_dispatch(struct c4iw_dev *dev, struct t4_cqe *err_cqe)
cqid = qhp->attr.rcq;
chp = get_chp(dev, cqid);
if (!chp) {
- 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",
+ pr_err("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(err_cqe),
CQE_OPCODE(err_cqe), CQE_STATUS(err_cqe),
CQE_TYPE(err_cqe), CQE_WRID_HI(err_cqe),
CQE_WRID_LOW(err_cqe));
- spin_unlock_irq(&dev->lock);
+ xa_unlock_irq(&dev->qps);
goto out;
}
c4iw_qp_add_ref(&qhp->ibqp);
- atomic_inc(&chp->refcnt);
- spin_unlock_irq(&dev->lock);
+ refcount_inc(&chp->refcnt);
+ xa_unlock_irq(&dev->qps);
/* Bad incoming write */
if (RQ_TYPE(err_cqe) &&
@@ -130,7 +165,7 @@ void c4iw_ev_dispatch(struct c4iw_dev *dev, struct t4_cqe *err_cqe)
/* Completion Events */
case T4_ERR_SUCCESS:
- printk(KERN_ERR MOD "AE with status 0!\n");
+ pr_err("AE with status 0!\n");
break;
case T4_ERR_STAG:
@@ -172,14 +207,13 @@ void c4iw_ev_dispatch(struct c4iw_dev *dev, struct t4_cqe *err_cqe)
break;
default:
- printk(KERN_ERR MOD "Unknown T4 status 0x%x QPID 0x%x\n",
+ pr_err("Unknown T4 status 0x%x QPID 0x%x\n",
CQE_STATUS(err_cqe), qhp->wq.sq.qid);
post_qp_event(dev, chp, qhp, err_cqe, IB_EVENT_QP_FATAL);
break;
}
done:
- if (atomic_dec_and_test(&chp->refcnt))
- wake_up(&chp->wait);
+ c4iw_cq_rem_ref(chp);
c4iw_qp_rem_ref(&qhp->ibqp);
out:
return;
@@ -190,12 +224,19 @@ int c4iw_ev_handler(struct c4iw_dev *dev, u32 qid)
struct c4iw_cq *chp;
unsigned long flag;
- chp = get_chp(dev, qid);
+ xa_lock_irqsave(&dev->cqs, flag);
+ chp = xa_load(&dev->cqs, qid);
if (chp) {
+ refcount_inc(&chp->refcnt);
+ xa_unlock_irqrestore(&dev->cqs, flag);
+ t4_clear_cq_armed(&chp->cq);
spin_lock_irqsave(&chp->comp_handler_lock, flag);
(*chp->ibcq.comp_handler)(&chp->ibcq, chp->ibcq.cq_context);
spin_unlock_irqrestore(&chp->comp_handler_lock, flag);
- } else
- PDBG("%s unknown cqid 0x%x\n", __func__, qid);
+ c4iw_cq_rem_ref(chp);
+ } else {
+ pr_debug("unknown cqid 0x%x\n", qid);
+ xa_unlock_irqrestore(&dev->cqs, flag);
+ }
return 0;
}
generated by cgit (git 2.34.1) at 2025-12-25 05:49:22 +0000