/*
+ * Copyright(c) 2015, 2016 Intel Corporation.
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
- * Copyright(c) 2015 Intel Corporation.
- *
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* BSD LICENSE
*
- * Copyright(c) 2015 Intel Corporation.
- *
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
#include "hfi.h"
#include "mad.h"
+#include "verbs_txreq.h"
#include "qp.h"
/**
* Note that the receive interrupt handler may be calling hfi1_ud_rcv()
* while this is being called.
*/
-static void ud_loopback(struct hfi1_qp *sqp, struct hfi1_swqe *swqe)
+static void ud_loopback(struct rvt_qp *sqp, struct rvt_swqe *swqe)
{
struct hfi1_ibport *ibp = to_iport(sqp->ibqp.device, sqp->port_num);
struct hfi1_pportdata *ppd;
- struct hfi1_qp *qp;
+ struct rvt_qp *qp;
struct ib_ah_attr *ah_attr;
unsigned long flags;
- struct hfi1_sge_state ssge;
- struct hfi1_sge *sge;
+ struct rvt_sge_state ssge;
+ struct rvt_sge *sge;
struct ib_wc wc;
u32 length;
enum ib_qp_type sqptype, dqptype;
rcu_read_lock();
- qp = hfi1_lookup_qpn(ibp, swqe->ud_wr.remote_qpn);
+ qp = rvt_lookup_qpn(ib_to_rvt(sqp->ibqp.device), &ibp->rvp,
+ swqe->ud_wr.remote_qpn);
if (!qp) {
- ibp->n_pkt_drops++;
+ ibp->rvp.n_pkt_drops++;
rcu_read_unlock();
return;
}
IB_QPT_UD : qp->ibqp.qp_type;
if (dqptype != sqptype ||
- !(ib_hfi1_state_ops[qp->state] & HFI1_PROCESS_RECV_OK)) {
- ibp->n_pkt_drops++;
+ !(ib_rvt_state_ops[qp->state] & RVT_PROCESS_RECV_OK)) {
+ ibp->rvp.n_pkt_drops++;
goto drop;
}
- ah_attr = &to_iah(swqe->ud_wr.ah)->attr;
+ ah_attr = &ibah_to_rvtah(swqe->ud_wr.ah)->attr;
ppd = ppd_from_ibp(ibp);
if (qp->ibqp.qp_num > 1) {
/*
* Get the next work request entry to find where to put the data.
*/
- if (qp->r_flags & HFI1_R_REUSE_SGE)
- qp->r_flags &= ~HFI1_R_REUSE_SGE;
- else {
+ if (qp->r_flags & RVT_R_REUSE_SGE) {
+ qp->r_flags &= ~RVT_R_REUSE_SGE;
+ } else {
int ret;
- ret = hfi1_get_rwqe(qp, 0);
+ ret = hfi1_rvt_get_rwqe(qp, 0);
if (ret < 0) {
hfi1_rc_error(qp, IB_WC_LOC_QP_OP_ERR);
goto bail_unlock;
}
if (!ret) {
if (qp->ibqp.qp_num == 0)
- ibp->n_vl15_dropped++;
+ ibp->rvp.n_vl15_dropped++;
goto bail_unlock;
}
}
/* Silently drop packets which are too big. */
if (unlikely(wc.byte_len > qp->r_len)) {
- qp->r_flags |= HFI1_R_REUSE_SGE;
- ibp->n_pkt_drops++;
+ qp->r_flags |= RVT_R_REUSE_SGE;
+ ibp->rvp.n_pkt_drops++;
goto bail_unlock;
}
if (ah_attr->ah_flags & IB_AH_GRH) {
hfi1_copy_sge(&qp->r_sge, &ah_attr->grh,
- sizeof(struct ib_grh), 1);
+ sizeof(struct ib_grh), 1, 0);
wc.wc_flags |= IB_WC_GRH;
- } else
+ } else {
hfi1_skip_sge(&qp->r_sge, sizeof(struct ib_grh), 1);
+ }
ssge.sg_list = swqe->sg_list + 1;
ssge.sge = *swqe->sg_list;
ssge.num_sge = swqe->wr.num_sge;
if (len > sge->sge_length)
len = sge->sge_length;
WARN_ON_ONCE(len == 0);
- hfi1_copy_sge(&qp->r_sge, sge->vaddr, len, 1);
+ hfi1_copy_sge(&qp->r_sge, sge->vaddr, len, 1, 0);
sge->vaddr += len;
sge->length -= len;
sge->sge_length -= len;
if (--ssge.num_sge)
*sge = *ssge.sg_list++;
} else if (sge->length == 0 && sge->mr->lkey) {
- if (++sge->n >= HFI1_SEGSZ) {
+ if (++sge->n >= RVT_SEGSZ) {
if (++sge->m >= sge->mr->mapsz)
break;
sge->n = 0;
}
length -= len;
}
- hfi1_put_ss(&qp->r_sge);
- if (!test_and_clear_bit(HFI1_R_WRID_VALID, &qp->r_aflags))
+ rvt_put_ss(&qp->r_sge);
+ if (!test_and_clear_bit(RVT_R_WRID_VALID, &qp->r_aflags))
goto bail_unlock;
wc.wr_id = qp->r_wr_id;
wc.status = IB_WC_SUCCESS;
wc.slid = ppd->lid | (ah_attr->src_path_bits & ((1 << ppd->lmc) - 1));
/* Check for loopback when the port lid is not set */
if (wc.slid == 0 && sqp->ibqp.qp_type == IB_QPT_GSI)
- wc.slid = HFI1_PERMISSIVE_LID;
+ wc.slid = be16_to_cpu(IB_LID_PERMISSIVE);
wc.sl = ah_attr->sl;
wc.dlid_path_bits = ah_attr->dlid & ((1 << ppd->lmc) - 1);
wc.port_num = qp->port_num;
/* Signal completion event if the solicited bit is set. */
- hfi1_cq_enter(to_icq(qp->ibqp.recv_cq), &wc,
- swqe->wr.send_flags & IB_SEND_SOLICITED);
- ibp->n_loop_pkts++;
+ rvt_cq_enter(ibcq_to_rvtcq(qp->ibqp.recv_cq), &wc,
+ swqe->wr.send_flags & IB_SEND_SOLICITED);
+ ibp->rvp.n_loop_pkts++;
bail_unlock:
spin_unlock_irqrestore(&qp->r_lock, flags);
drop:
* hfi1_make_ud_req - construct a UD request packet
* @qp: the QP
*
+ * Assume s_lock is held.
+ *
* Return 1 if constructed; otherwise, return 0.
*/
-int hfi1_make_ud_req(struct hfi1_qp *qp)
+int hfi1_make_ud_req(struct rvt_qp *qp, struct hfi1_pkt_state *ps)
{
+ struct hfi1_qp_priv *priv = qp->priv;
struct hfi1_other_headers *ohdr;
struct ib_ah_attr *ah_attr;
struct hfi1_pportdata *ppd;
struct hfi1_ibport *ibp;
- struct hfi1_swqe *wqe;
- unsigned long flags;
+ struct rvt_swqe *wqe;
u32 nwords;
u32 extra_bytes;
u32 bth0;
u16 lrh0;
u16 lid;
- int ret = 0;
int next_cur;
u8 sc5;
- spin_lock_irqsave(&qp->s_lock, flags);
+ ps->s_txreq = get_txreq(ps->dev, qp);
+ if (IS_ERR(ps->s_txreq))
+ goto bail_no_tx;
- if (!(ib_hfi1_state_ops[qp->state] & HFI1_PROCESS_NEXT_SEND_OK)) {
- if (!(ib_hfi1_state_ops[qp->state] & HFI1_FLUSH_SEND))
+ if (!(ib_rvt_state_ops[qp->state] & RVT_PROCESS_NEXT_SEND_OK)) {
+ if (!(ib_rvt_state_ops[qp->state] & RVT_FLUSH_SEND))
goto bail;
/* We are in the error state, flush the work request. */
- if (qp->s_last == qp->s_head)
+ smp_read_barrier_depends(); /* see post_one_send */
+ if (qp->s_last == ACCESS_ONCE(qp->s_head))
goto bail;
/* If DMAs are in progress, we can't flush immediately. */
- if (atomic_read(&qp->s_iowait.sdma_busy)) {
- qp->s_flags |= HFI1_S_WAIT_DMA;
+ if (iowait_sdma_pending(&priv->s_iowait)) {
+ qp->s_flags |= RVT_S_WAIT_DMA;
goto bail;
}
- wqe = get_swqe_ptr(qp, qp->s_last);
+ wqe = rvt_get_swqe_ptr(qp, qp->s_last);
hfi1_send_complete(qp, wqe, IB_WC_WR_FLUSH_ERR);
- goto done;
+ goto done_free_tx;
}
- if (qp->s_cur == qp->s_head)
+ /* see post_one_send() */
+ smp_read_barrier_depends();
+ if (qp->s_cur == ACCESS_ONCE(qp->s_head))
goto bail;
- wqe = get_swqe_ptr(qp, qp->s_cur);
+ wqe = rvt_get_swqe_ptr(qp, qp->s_cur);
next_cur = qp->s_cur + 1;
if (next_cur >= qp->s_size)
next_cur = 0;
/* Construct the header. */
ibp = to_iport(qp->ibqp.device, qp->port_num);
ppd = ppd_from_ibp(ibp);
- ah_attr = &to_iah(wqe->ud_wr.ah)->attr;
- if (ah_attr->dlid < HFI1_MULTICAST_LID_BASE ||
- ah_attr->dlid == HFI1_PERMISSIVE_LID) {
+ ah_attr = &ibah_to_rvtah(wqe->ud_wr.ah)->attr;
+ if (ah_attr->dlid < be16_to_cpu(IB_MULTICAST_LID_BASE) ||
+ ah_attr->dlid == be16_to_cpu(IB_LID_PERMISSIVE)) {
lid = ah_attr->dlid & ~((1 << ppd->lmc) - 1);
- if (unlikely(!loopback && (lid == ppd->lid ||
- (lid == HFI1_PERMISSIVE_LID &&
- qp->ibqp.qp_type == IB_QPT_GSI)))) {
+ if (unlikely(!loopback &&
+ (lid == ppd->lid ||
+ (lid == be16_to_cpu(IB_LID_PERMISSIVE) &&
+ qp->ibqp.qp_type == IB_QPT_GSI)))) {
+ unsigned long flags;
/*
* If DMAs are in progress, we can't generate
* a completion for the loopback packet since
* Instead of waiting, we could queue a
* zero length descriptor so we get a callback.
*/
- if (atomic_read(&qp->s_iowait.sdma_busy)) {
- qp->s_flags |= HFI1_S_WAIT_DMA;
+ if (iowait_sdma_pending(&priv->s_iowait)) {
+ qp->s_flags |= RVT_S_WAIT_DMA;
goto bail;
}
qp->s_cur = next_cur;
+ local_irq_save(flags);
spin_unlock_irqrestore(&qp->s_lock, flags);
ud_loopback(qp, wqe);
spin_lock_irqsave(&qp->s_lock, flags);
hfi1_send_complete(qp, wqe, IB_WC_SUCCESS);
- goto done;
+ goto done_free_tx;
}
}
if (ah_attr->ah_flags & IB_AH_GRH) {
/* Header size in 32-bit words. */
- qp->s_hdrwords += hfi1_make_grh(ibp, &qp->s_hdr->ibh.u.l.grh,
- &ah_attr->grh,
- qp->s_hdrwords, nwords);
+ qp->s_hdrwords += hfi1_make_grh(ibp,
+ &ps->s_txreq->phdr.hdr.u.l.grh,
+ &ah_attr->grh,
+ qp->s_hdrwords, nwords);
lrh0 = HFI1_LRH_GRH;
- ohdr = &qp->s_hdr->ibh.u.l.oth;
+ ohdr = &ps->s_txreq->phdr.hdr.u.l.oth;
/*
* Don't worry about sending to locally attached multicast
* QPs. It is unspecified by the spec. what happens.
} else {
/* Header size in 32-bit words. */
lrh0 = HFI1_LRH_BTH;
- ohdr = &qp->s_hdr->ibh.u.oth;
+ ohdr = &ps->s_txreq->phdr.hdr.u.oth;
}
if (wqe->wr.opcode == IB_WR_SEND_WITH_IMM) {
qp->s_hdrwords++;
ohdr->u.ud.imm_data = wqe->wr.ex.imm_data;
bth0 = IB_OPCODE_UD_SEND_ONLY_WITH_IMMEDIATE << 24;
- } else
+ } else {
bth0 = IB_OPCODE_UD_SEND_ONLY << 24;
+ }
sc5 = ibp->sl_to_sc[ah_attr->sl];
lrh0 |= (ah_attr->sl & 0xf) << 4;
if (qp->ibqp.qp_type == IB_QPT_SMI) {
lrh0 |= 0xF000; /* Set VL (see ch. 13.5.3.1) */
- qp->s_sc = 0xf;
+ priv->s_sc = 0xf;
} else {
lrh0 |= (sc5 & 0xf) << 12;
- qp->s_sc = sc5;
+ priv->s_sc = sc5;
}
- qp->s_sde = qp_to_sdma_engine(qp, qp->s_sc);
- qp->s_hdr->ibh.lrh[0] = cpu_to_be16(lrh0);
- qp->s_hdr->ibh.lrh[1] = cpu_to_be16(ah_attr->dlid); /* DEST LID */
- qp->s_hdr->ibh.lrh[2] =
+ priv->s_sde = qp_to_sdma_engine(qp, priv->s_sc);
+ ps->s_txreq->sde = priv->s_sde;
+ priv->s_sendcontext = qp_to_send_context(qp, priv->s_sc);
+ ps->s_txreq->psc = priv->s_sendcontext;
+ ps->s_txreq->phdr.hdr.lrh[0] = cpu_to_be16(lrh0);
+ ps->s_txreq->phdr.hdr.lrh[1] = cpu_to_be16(ah_attr->dlid);
+ ps->s_txreq->phdr.hdr.lrh[2] =
cpu_to_be16(qp->s_hdrwords + nwords + SIZE_OF_CRC);
- if (ah_attr->dlid == be16_to_cpu(IB_LID_PERMISSIVE))
- qp->s_hdr->ibh.lrh[3] = IB_LID_PERMISSIVE;
- else {
+ if (ah_attr->dlid == be16_to_cpu(IB_LID_PERMISSIVE)) {
+ ps->s_txreq->phdr.hdr.lrh[3] = IB_LID_PERMISSIVE;
+ } else {
lid = ppd->lid;
if (lid) {
lid |= ah_attr->src_path_bits & ((1 << ppd->lmc) - 1);
- qp->s_hdr->ibh.lrh[3] = cpu_to_be16(lid);
- } else
- qp->s_hdr->ibh.lrh[3] = IB_LID_PERMISSIVE;
+ ps->s_txreq->phdr.hdr.lrh[3] = cpu_to_be16(lid);
+ } else {
+ ps->s_txreq->phdr.hdr.lrh[3] = IB_LID_PERMISSIVE;
+ }
}
if (wqe->wr.send_flags & IB_SEND_SOLICITED)
bth0 |= IB_BTH_SOLICITED;
bth0 |= hfi1_get_pkey(ibp, qp->s_pkey_index);
ohdr->bth[0] = cpu_to_be32(bth0);
ohdr->bth[1] = cpu_to_be32(wqe->ud_wr.remote_qpn);
- ohdr->bth[2] = cpu_to_be32(mask_psn(qp->s_next_psn++));
+ ohdr->bth[2] = cpu_to_be32(mask_psn(wqe->psn));
/*
* Qkeys with the high order bit set mean use the
* qkey from the QP context instead of the WR (see 10.2.5).
qp->qkey : wqe->ud_wr.remote_qkey);
ohdr->u.ud.deth[1] = cpu_to_be32(qp->ibqp.qp_num);
/* disarm any ahg */
- qp->s_hdr->ahgcount = 0;
- qp->s_hdr->ahgidx = 0;
- qp->s_hdr->tx_flags = 0;
- qp->s_hdr->sde = NULL;
+ priv->s_hdr->ahgcount = 0;
+ priv->s_hdr->ahgidx = 0;
+ priv->s_hdr->tx_flags = 0;
+ priv->s_hdr->sde = NULL;
+ /* pbc */
+ ps->s_txreq->hdr_dwords = qp->s_hdrwords + 2;
+
+ return 1;
-done:
- ret = 1;
- goto unlock;
+done_free_tx:
+ hfi1_put_txreq(ps->s_txreq);
+ ps->s_txreq = NULL;
+ return 1;
bail:
- qp->s_flags &= ~HFI1_S_BUSY;
-unlock:
- spin_unlock_irqrestore(&qp->s_lock, flags);
- return ret;
+ hfi1_put_txreq(ps->s_txreq);
+
+bail_no_tx:
+ ps->s_txreq = NULL;
+ qp->s_flags &= ~RVT_S_BUSY;
+ qp->s_hdrwords = 0;
+ return 0;
}
/*
return -1;
}
-void return_cnp(struct hfi1_ibport *ibp, struct hfi1_qp *qp, u32 remote_qpn,
+void return_cnp(struct hfi1_ibport *ibp, struct rvt_qp *qp, u32 remote_qpn,
u32 pkey, u32 slid, u32 dlid, u8 sc5,
const struct ib_grh *old_grh)
{
* opa_smp_check() returns 0 if all checks succeed, 1 otherwise.
*/
static int opa_smp_check(struct hfi1_ibport *ibp, u16 pkey, u8 sc5,
- struct hfi1_qp *qp, u16 slid, struct opa_smp *smp)
+ struct rvt_qp *qp, u16 slid, struct opa_smp *smp)
{
struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);
case IB_MGMT_METHOD_TRAP:
case IB_MGMT_METHOD_GET_RESP:
case IB_MGMT_METHOD_REPORT_RESP:
- if (ibp->port_cap_flags & IB_PORT_SM)
+ if (ibp->rvp.port_cap_flags & IB_PORT_SM)
return 0;
if (pkey == FULL_MGMT_P_KEY) {
smp->status |= IB_SMP_UNSUP_METHOD;
return 0;
}
-
/**
* hfi1_ud_rcv - receive an incoming UD packet
* @ibp: the port the packet came in on
u32 rcv_flags = packet->rcv_flags;
void *data = packet->ebuf;
u32 tlen = packet->tlen;
- struct hfi1_qp *qp = packet->qp;
+ struct rvt_qp *qp = packet->qp;
bool has_grh = rcv_flags & HFI1_HAS_GRH;
bool sc4_bit = has_sc4_bit(packet);
u8 sc;
struct ib_grh *grh = NULL;
qkey = be32_to_cpu(ohdr->u.ud.deth[0]);
- src_qp = be32_to_cpu(ohdr->u.ud.deth[1]) & HFI1_QPN_MASK;
+ src_qp = be32_to_cpu(ohdr->u.ud.deth[1]) & RVT_QPN_MASK;
dlid = be16_to_cpu(hdr->lrh[1]);
- is_mcast = (dlid > HFI1_MULTICAST_LID_BASE) &&
- (dlid != HFI1_PERMISSIVE_LID);
+ 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)) {
/*
* error path.
*/
struct hfi1_pportdata *ppd = ppd_from_ibp(ibp);
- u32 lqpn = be32_to_cpu(ohdr->bth[1]) & HFI1_QPN_MASK;
+ u32 lqpn = be32_to_cpu(ohdr->bth[1]) & RVT_QPN_MASK;
u8 sl, sc5;
sc5 = (be16_to_cpu(hdr->lrh[0]) >> 12) & 0xf;
mgmt_pkey_idx = hfi1_lookup_pkey_idx(ibp, pkey);
if (mgmt_pkey_idx < 0)
goto drop;
-
}
if (unlikely(qkey != qp->qkey)) {
hfi1_bad_pqkey(ibp, OPA_TRAP_BAD_Q_KEY, qkey,
mgmt_pkey_idx = hfi1_lookup_pkey_idx(ibp, pkey);
if (mgmt_pkey_idx < 0)
goto drop;
-
}
if (qp->ibqp.qp_num > 1 &&
} else if (opcode == IB_OPCODE_UD_SEND_ONLY) {
wc.ex.imm_data = 0;
wc.wc_flags = 0;
- } else
+ } else {
goto drop;
+ }
/*
* A GRH is expected to precede the data even if not
/*
* Get the next work request entry to find where to put the data.
*/
- if (qp->r_flags & HFI1_R_REUSE_SGE)
- qp->r_flags &= ~HFI1_R_REUSE_SGE;
- else {
+ if (qp->r_flags & RVT_R_REUSE_SGE) {
+ qp->r_flags &= ~RVT_R_REUSE_SGE;
+ } else {
int ret;
- ret = hfi1_get_rwqe(qp, 0);
+ ret = hfi1_rvt_get_rwqe(qp, 0);
if (ret < 0) {
hfi1_rc_error(qp, IB_WC_LOC_QP_OP_ERR);
return;
}
if (!ret) {
if (qp->ibqp.qp_num == 0)
- ibp->n_vl15_dropped++;
+ ibp->rvp.n_vl15_dropped++;
return;
}
}
/* Silently drop packets which are too big. */
if (unlikely(wc.byte_len > qp->r_len)) {
- qp->r_flags |= HFI1_R_REUSE_SGE;
+ qp->r_flags |= RVT_R_REUSE_SGE;
goto drop;
}
if (has_grh) {
hfi1_copy_sge(&qp->r_sge, &hdr->u.l.grh,
- sizeof(struct ib_grh), 1);
+ sizeof(struct ib_grh), 1, 0);
wc.wc_flags |= IB_WC_GRH;
- } else
+ } else {
hfi1_skip_sge(&qp->r_sge, sizeof(struct ib_grh), 1);
- hfi1_copy_sge(&qp->r_sge, data, wc.byte_len - sizeof(struct ib_grh), 1);
- hfi1_put_ss(&qp->r_sge);
- if (!test_and_clear_bit(HFI1_R_WRID_VALID, &qp->r_aflags))
+ }
+ hfi1_copy_sge(&qp->r_sge, data, wc.byte_len - sizeof(struct ib_grh),
+ 1, 0);
+ rvt_put_ss(&qp->r_sge);
+ if (!test_and_clear_bit(RVT_R_WRID_VALID, &qp->r_aflags))
return;
wc.wr_id = qp->r_wr_id;
wc.status = IB_WC_SUCCESS;
}
}
wc.pkey_index = (unsigned)mgmt_pkey_idx;
- } else
+ } else {
wc.pkey_index = 0;
+ }
wc.slid = be16_to_cpu(hdr->lrh[3]);
sc = (be16_to_cpu(hdr->lrh[0]) >> 12) & 0xf;
/*
* Save the LMC lower bits if the destination LID is a unicast LID.
*/
- wc.dlid_path_bits = dlid >= HFI1_MULTICAST_LID_BASE ? 0 :
+ wc.dlid_path_bits = dlid >= be16_to_cpu(IB_MULTICAST_LID_BASE) ? 0 :
dlid & ((1 << ppd_from_ibp(ibp)->lmc) - 1);
wc.port_num = qp->port_num;
/* Signal completion event if the solicited bit is set. */
- hfi1_cq_enter(to_icq(qp->ibqp.recv_cq), &wc,
- (ohdr->bth[0] &
- cpu_to_be32(IB_BTH_SOLICITED)) != 0);
+ rvt_cq_enter(ibcq_to_rvtcq(qp->ibqp.recv_cq), &wc,
+ (ohdr->bth[0] &
+ cpu_to_be32(IB_BTH_SOLICITED)) != 0);
return;
drop:
- ibp->n_pkt_drops++;
+ ibp->rvp.n_pkt_drops++;
}
OSDN Git Service
