diff options
Diffstat (limited to 'drivers/staging/rdma/hfi1/verbs.c')
| -rw-r--r-- | drivers/staging/rdma/hfi1/verbs.c | 108 |
1 files changed, 66 insertions, 42 deletions
diff --git a/drivers/staging/rdma/hfi1/verbs.c b/drivers/staging/rdma/hfi1/verbs.c index 89f2aad..9cdc85f 100644 --- a/drivers/staging/rdma/hfi1/verbs.c +++ b/drivers/staging/rdma/hfi1/verbs.c @@ -545,7 +545,7 @@ static inline int qp_ok(int opcode, struct hfi1_packet *packet) if (!(ib_rvt_state_ops[packet->qp->state] & RVT_PROCESS_RECV_OK)) goto dropit; - if (((opcode & OPCODE_QP_MASK) == packet->qp->allowed_ops) || + if (((opcode & RVT_OPCODE_QP_MASK) == packet->qp->allowed_ops) || (opcode == IB_OPCODE_CNP)) return 1; dropit: @@ -1089,16 +1089,16 @@ bail: /* * egress_pkey_matches_entry - return 1 if the pkey matches ent (ent - * being an entry from the ingress partition key table), return 0 + * being an entry from the partition key table), return 0 * otherwise. Use the matching criteria for egress partition keys * specified in the OPAv1 spec., section 9.1l.7. */ static inline int egress_pkey_matches_entry(u16 pkey, u16 ent) { u16 mkey = pkey & PKEY_LOW_15_MASK; - u16 ment = ent & PKEY_LOW_15_MASK; + u16 mentry = ent & PKEY_LOW_15_MASK; - if (mkey == ment) { + if (mkey == mentry) { /* * If pkey[15] is set (full partition member), * is bit 15 in the corresponding table element @@ -1111,32 +1111,32 @@ static inline int egress_pkey_matches_entry(u16 pkey, u16 ent) return 0; } -/* - * egress_pkey_check - return 0 if hdr's pkey matches according to the - * criteria in the OPAv1 spec., section 9.11.7. +/** + * egress_pkey_check - check P_KEY of a packet + * @ppd: Physical IB port data + * @lrh: Local route header + * @bth: Base transport header + * @sc5: SC for packet + * @s_pkey_index: It will be used for look up optimization for kernel contexts + * only. If it is negative value, then it means user contexts is calling this + * function. + * + * It checks if hdr's pkey is valid. + * + * Return: 0 on success, otherwise, 1 */ -static inline int egress_pkey_check(struct hfi1_pportdata *ppd, - struct hfi1_ib_header *hdr, - struct rvt_qp *qp) +int egress_pkey_check(struct hfi1_pportdata *ppd, __be16 *lrh, __be32 *bth, + u8 sc5, int8_t s_pkey_index) { - struct hfi1_qp_priv *priv = qp->priv; - struct hfi1_other_headers *ohdr; struct hfi1_devdata *dd; - int i = 0; + int i; u16 pkey; - u8 lnh, sc5 = priv->s_sc; + int is_user_ctxt_mechanism = (s_pkey_index < 0); if (!(ppd->part_enforce & HFI1_PART_ENFORCE_OUT)) return 0; - /* locate the pkey within the headers */ - lnh = be16_to_cpu(hdr->lrh[0]) & 3; - if (lnh == HFI1_LRH_GRH) - ohdr = &hdr->u.l.oth; - else - ohdr = &hdr->u.oth; - - pkey = (u16)be32_to_cpu(ohdr->bth[0]); + pkey = (u16)be32_to_cpu(bth[0]); /* If SC15, pkey[0:14] must be 0x7fff */ if ((sc5 == 0xf) && ((pkey & PKEY_LOW_15_MASK) != PKEY_LOW_15_MASK)) @@ -1146,28 +1146,37 @@ static inline int egress_pkey_check(struct hfi1_pportdata *ppd, if ((pkey & PKEY_LOW_15_MASK) == 0) goto bad; - /* The most likely matching pkey has index qp->s_pkey_index */ - if (unlikely(!egress_pkey_matches_entry(pkey, - ppd->pkeys - [qp->s_pkey_index]))) { - /* no match - try the entire table */ - for (; i < MAX_PKEY_VALUES; i++) { - if (egress_pkey_matches_entry(pkey, ppd->pkeys[i])) - break; - } + /* + * For the kernel contexts only, if a qp is passed into the function, + * the most likely matching pkey has index qp->s_pkey_index + */ + if (!is_user_ctxt_mechanism && + egress_pkey_matches_entry(pkey, ppd->pkeys[s_pkey_index])) { + return 0; } - if (i < MAX_PKEY_VALUES) - return 0; + for (i = 0; i < MAX_PKEY_VALUES; i++) { + if (egress_pkey_matches_entry(pkey, ppd->pkeys[i])) + return 0; + } bad: - incr_cntr64(&ppd->port_xmit_constraint_errors); - dd = ppd->dd; - if (!(dd->err_info_xmit_constraint.status & OPA_EI_STATUS_SMASK)) { - u16 slid = be16_to_cpu(hdr->lrh[3]); - - dd->err_info_xmit_constraint.status |= OPA_EI_STATUS_SMASK; - dd->err_info_xmit_constraint.slid = slid; - dd->err_info_xmit_constraint.pkey = pkey; + /* + * For the user-context mechanism, the P_KEY check would only happen + * once per SDMA request, not once per packet. Therefore, there's no + * need to increment the counter for the user-context mechanism. + */ + if (!is_user_ctxt_mechanism) { + incr_cntr64(&ppd->port_xmit_constraint_errors); + dd = ppd->dd; + if (!(dd->err_info_xmit_constraint.status & + OPA_EI_STATUS_SMASK)) { + u16 slid = be16_to_cpu(lrh[3]); + + dd->err_info_xmit_constraint.status |= + OPA_EI_STATUS_SMASK; + dd->err_info_xmit_constraint.slid = slid; + dd->err_info_xmit_constraint.pkey = pkey; + } } return 1; } @@ -1227,11 +1236,26 @@ int hfi1_verbs_send(struct rvt_qp *qp, struct hfi1_pkt_state *ps) { struct hfi1_devdata *dd = dd_from_ibdev(qp->ibqp.device); struct hfi1_qp_priv *priv = qp->priv; + struct hfi1_other_headers *ohdr; + struct hfi1_ib_header *hdr; send_routine sr; int ret; + u8 lnh; + + hdr = &ps->s_txreq->phdr.hdr; + /* locate the pkey within the headers */ + lnh = be16_to_cpu(hdr->lrh[0]) & 3; + if (lnh == HFI1_LRH_GRH) + ohdr = &hdr->u.l.oth; + else + ohdr = &hdr->u.oth; sr = get_send_routine(qp, ps->s_txreq); - ret = egress_pkey_check(dd->pport, &ps->s_txreq->phdr.hdr, qp); + ret = egress_pkey_check(dd->pport, + hdr->lrh, + ohdr->bth, + priv->s_sc, + qp->s_pkey_index); if (unlikely(ret)) { /* * The value we are returning here does not get propagated to |