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path: root/drivers/infiniband/hw/hfi1/ud.c
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Diffstat (limited to 'drivers/infiniband/hw/hfi1/ud.c')
-rw-r--r--drivers/infiniband/hw/hfi1/ud.c86
1 files changed, 29 insertions, 57 deletions
diff --git a/drivers/infiniband/hw/hfi1/ud.c b/drivers/infiniband/hw/hfi1/ud.c
index be91f6fa1c87..f01e8e1d62d3 100644
--- a/drivers/infiniband/hw/hfi1/ud.c
+++ b/drivers/infiniband/hw/hfi1/ud.c
@@ -184,8 +184,12 @@ static void ud_loopback(struct rvt_qp *sqp, struct rvt_swqe *swqe)
}
if (ah_attr->ah_flags & IB_AH_GRH) {
- hfi1_copy_sge(&qp->r_sge, &ah_attr->grh,
- sizeof(struct ib_grh), 1, 0);
+ struct ib_grh grh;
+ struct ib_global_route grd = ah_attr->grh;
+
+ hfi1_make_grh(ibp, &grh, &grd, 0, 0);
+ hfi1_copy_sge(&qp->r_sge, &grh,
+ sizeof(grh), 1, 0);
wc.wc_flags |= IB_WC_GRH;
} else {
hfi1_skip_sge(&qp->r_sge, sizeof(struct ib_grh), 1);
@@ -430,10 +434,9 @@ int hfi1_make_ud_req(struct rvt_qp *qp, struct hfi1_pkt_state *ps)
qp->qkey : wqe->ud_wr.remote_qkey);
ohdr->u.ud.deth[1] = cpu_to_be32(qp->ibqp.qp_num);
/* disarm any ahg */
- priv->s_hdr->ahgcount = 0;
- priv->s_hdr->ahgidx = 0;
- priv->s_hdr->tx_flags = 0;
- priv->s_hdr->sde = NULL;
+ priv->s_ahg->ahgcount = 0;
+ priv->s_ahg->ahgidx = 0;
+ priv->s_ahg->tx_flags = 0;
/* pbc */
ps->s_txreq->hdr_dwords = qp->s_hdrwords + 2;
@@ -665,13 +668,13 @@ void hfi1_ud_rcv(struct hfi1_packet *packet)
struct hfi1_other_headers *ohdr = packet->ohdr;
int opcode;
u32 hdrsize = packet->hlen;
- u32 pad;
struct ib_wc wc;
u32 qkey;
u32 src_qp;
u16 dlid, pkey;
int mgmt_pkey_idx = -1;
struct hfi1_ibport *ibp = &packet->rcd->ppd->ibport_data;
+ struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);
struct hfi1_ib_header *hdr = packet->hdr;
u32 rcv_flags = packet->rcv_flags;
void *data = packet->ebuf;
@@ -680,52 +683,33 @@ void hfi1_ud_rcv(struct hfi1_packet *packet)
bool has_grh = rcv_flags & HFI1_HAS_GRH;
u8 sc5 = hdr2sc((struct hfi1_message_header *)hdr, packet->rhf);
u32 bth1;
- int is_mcast;
- struct ib_grh *grh = NULL;
+ u8 sl_from_sc, sl;
+ u16 slid;
+ u8 extra_bytes;
qkey = be32_to_cpu(ohdr->u.ud.deth[0]);
src_qp = be32_to_cpu(ohdr->u.ud.deth[1]) & RVT_QPN_MASK;
dlid = be16_to_cpu(hdr->lrh[1]);
- is_mcast = (dlid > be16_to_cpu(IB_MULTICAST_LID_BASE)) &&
- (dlid != be16_to_cpu(IB_LID_PERMISSIVE));
bth1 = be32_to_cpu(ohdr->bth[1]);
- if (unlikely(bth1 & HFI1_BECN_SMASK)) {
- /*
- * In pre-B0 h/w the CNP_OPCODE is handled via an
- * error path.
- */
- struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);
- u32 lqpn = be32_to_cpu(ohdr->bth[1]) & RVT_QPN_MASK;
- u8 sl;
-
- sl = ibp->sc_to_sl[sc5];
-
- process_becn(ppd, sl, 0, lqpn, 0, IB_CC_SVCTYPE_UD);
- }
+ slid = be16_to_cpu(hdr->lrh[3]);
+ pkey = (u16)be32_to_cpu(ohdr->bth[0]);
+ sl = (be16_to_cpu(hdr->lrh[0]) >> 4) & 0xf;
+ extra_bytes = (be32_to_cpu(ohdr->bth[0]) >> 20) & 3;
+ extra_bytes += (SIZE_OF_CRC << 2);
+ sl_from_sc = ibp->sc_to_sl[sc5];
- /*
- * The opcode is in the low byte when its in network order
- * (top byte when in host order).
- */
opcode = be32_to_cpu(ohdr->bth[0]) >> 24;
opcode &= 0xff;
- pkey = (u16)be32_to_cpu(ohdr->bth[0]);
-
- if (!is_mcast && (opcode != IB_OPCODE_CNP) && bth1 & HFI1_FECN_SMASK) {
- u16 slid = be16_to_cpu(hdr->lrh[3]);
-
- return_cnp(ibp, qp, src_qp, pkey, dlid, slid, sc5, grh);
- }
+ process_ecn(qp, packet, (opcode != IB_OPCODE_CNP));
/*
* Get the number of bytes the message was padded by
* and drop incomplete packets.
*/
- pad = (be32_to_cpu(ohdr->bth[0]) >> 20) & 3;
- if (unlikely(tlen < (hdrsize + pad + 4)))
+ if (unlikely(tlen < (hdrsize + extra_bytes)))
goto drop;
- tlen -= hdrsize + pad + 4;
+ tlen -= hdrsize + extra_bytes;
/*
* Check that the permissive LID is only used on QP0
@@ -736,10 +720,6 @@ void hfi1_ud_rcv(struct hfi1_packet *packet)
hdr->lrh[3] == IB_LID_PERMISSIVE))
goto drop;
if (qp->ibqp.qp_num > 1) {
- struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);
- u16 slid;
-
- slid = be16_to_cpu(hdr->lrh[3]);
if (unlikely(rcv_pkey_check(ppd, pkey, sc5, slid))) {
/*
* Traps will not be sent for packets dropped
@@ -748,12 +728,9 @@ void hfi1_ud_rcv(struct hfi1_packet *packet)
* IB spec (release 1.3, section 10.9.4)
*/
hfi1_bad_pqkey(ibp, OPA_TRAP_BAD_P_KEY,
- pkey,
- (be16_to_cpu(hdr->lrh[0]) >> 4) &
- 0xF,
+ pkey, sl,
src_qp, qp->ibqp.qp_num,
- be16_to_cpu(hdr->lrh[3]),
- be16_to_cpu(hdr->lrh[1]));
+ slid, dlid);
return;
}
} else {
@@ -763,22 +740,18 @@ void hfi1_ud_rcv(struct hfi1_packet *packet)
goto drop;
}
if (unlikely(qkey != qp->qkey)) {
- hfi1_bad_pqkey(ibp, OPA_TRAP_BAD_Q_KEY, qkey,
- (be16_to_cpu(hdr->lrh[0]) >> 4) & 0xF,
+ hfi1_bad_pqkey(ibp, OPA_TRAP_BAD_Q_KEY, qkey, sl,
src_qp, qp->ibqp.qp_num,
- be16_to_cpu(hdr->lrh[3]),
- be16_to_cpu(hdr->lrh[1]));
+ slid, dlid);
return;
}
/* Drop invalid MAD packets (see 13.5.3.1). */
if (unlikely(qp->ibqp.qp_num == 1 &&
- (tlen > 2048 ||
- (be16_to_cpu(hdr->lrh[0]) >> 12) == 15)))
+ (tlen > 2048 || (sc5 == 0xF))))
goto drop;
} else {
/* Received on QP0, and so by definition, this is an SMP */
struct opa_smp *smp = (struct opa_smp *)data;
- u16 slid = be16_to_cpu(hdr->lrh[3]);
if (opa_smp_check(ibp, pkey, sc5, qp, slid, smp))
goto drop;
@@ -861,7 +834,6 @@ void hfi1_ud_rcv(struct hfi1_packet *packet)
qp->ibqp.qp_type == IB_QPT_SMI) {
if (mgmt_pkey_idx < 0) {
if (net_ratelimit()) {
- struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);
struct hfi1_devdata *dd = ppd->dd;
dd_dev_err(dd, "QP type %d mgmt_pkey_idx < 0 and packet not dropped???\n",
@@ -874,8 +846,8 @@ void hfi1_ud_rcv(struct hfi1_packet *packet)
wc.pkey_index = 0;
}
- wc.slid = be16_to_cpu(hdr->lrh[3]);
- wc.sl = ibp->sc_to_sl[sc5];
+ wc.slid = slid;
+ wc.sl = sl_from_sc;
/*
* Save the LMC lower bits if the destination LID is a unicast LID.
generated by cgit (git 2.34.1) at 2024-06-15 15:16:09 +0000