* Copyright (c) 2004 Topspin Communications. All rights reserved.
* Copyright (c) 2005 Cisco Systems. All rights reserved.
* Copyright (c) 2005 Mellanox Technologies. All rights reserved.
- * Copyright (c) 2004 Voltaire, Inc. All rights reserved.
+ * Copyright (c) 2004 Voltaire, 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
#include <linux/string.h>
#include <linux/slab.h>
-#include <asm/io.h>
-
#include <rdma/ib_verbs.h>
#include <rdma/ib_cache.h>
#include <rdma/ib_pack.h>
MTHCA_QP_BIT_RSC = 1 << 3
};
-enum {
- MTHCA_SEND_DOORBELL_FENCE = 1 << 5
-};
-
struct mthca_qp_path {
__be32 port_pkey;
u8 rnr_retry;
(PAGE_SIZE - 1));
}
-static void mthca_wq_reset(struct mthca_wq *wq)
+static void mthca_wq_init(struct mthca_wq *wq)
{
+ spin_lock_init(&wq->lock);
wq->next_ind = 0;
wq->last_comp = wq->max - 1;
wq->head = 0;
spin_lock(&dev->qp_table.lock);
qp = mthca_array_get(&dev->qp_table.qp, qpn & (dev->limits.num_qps - 1));
if (qp)
- ++qp->refcount;
+ atomic_inc(&qp->refcount);
spin_unlock(&dev->qp_table.lock);
if (!qp) {
return;
}
- if (event_type == IB_EVENT_PATH_MIG)
- qp->port = qp->alt_port;
-
event.device = &dev->ib_dev;
event.event = event_type;
event.element.qp = &qp->ibqp;
if (qp->ibqp.event_handler)
qp->ibqp.event_handler(&event, qp->ibqp.qp_context);
- spin_lock(&dev->qp_table.lock);
- if (!--qp->refcount)
+ if (atomic_dec_and_test(&qp->refcount))
wake_up(&qp->wait);
- spin_unlock(&dev->qp_table.lock);
}
static int to_mthca_state(enum ib_qp_state ib_state)
}
}
+static const struct {
+ int trans;
+ u32 req_param[NUM_TRANS];
+ u32 opt_param[NUM_TRANS];
+} state_table[IB_QPS_ERR + 1][IB_QPS_ERR + 1] = {
+ [IB_QPS_RESET] = {
+ [IB_QPS_RESET] = { .trans = MTHCA_TRANS_ANY2RST },
+ [IB_QPS_ERR] = { .trans = MTHCA_TRANS_ANY2ERR },
+ [IB_QPS_INIT] = {
+ .trans = MTHCA_TRANS_RST2INIT,
+ .req_param = {
+ [UD] = (IB_QP_PKEY_INDEX |
+ IB_QP_PORT |
+ IB_QP_QKEY),
+ [UC] = (IB_QP_PKEY_INDEX |
+ IB_QP_PORT |
+ IB_QP_ACCESS_FLAGS),
+ [RC] = (IB_QP_PKEY_INDEX |
+ IB_QP_PORT |
+ IB_QP_ACCESS_FLAGS),
+ [MLX] = (IB_QP_PKEY_INDEX |
+ IB_QP_QKEY),
+ },
+ /* bug-for-bug compatibility with VAPI: */
+ .opt_param = {
+ [MLX] = IB_QP_PORT
+ }
+ },
+ },
+ [IB_QPS_INIT] = {
+ [IB_QPS_RESET] = { .trans = MTHCA_TRANS_ANY2RST },
+ [IB_QPS_ERR] = { .trans = MTHCA_TRANS_ANY2ERR },
+ [IB_QPS_INIT] = {
+ .trans = MTHCA_TRANS_INIT2INIT,
+ .opt_param = {
+ [UD] = (IB_QP_PKEY_INDEX |
+ IB_QP_PORT |
+ IB_QP_QKEY),
+ [UC] = (IB_QP_PKEY_INDEX |
+ IB_QP_PORT |
+ IB_QP_ACCESS_FLAGS),
+ [RC] = (IB_QP_PKEY_INDEX |
+ IB_QP_PORT |
+ IB_QP_ACCESS_FLAGS),
+ [MLX] = (IB_QP_PKEY_INDEX |
+ IB_QP_QKEY),
+ }
+ },
+ [IB_QPS_RTR] = {
+ .trans = MTHCA_TRANS_INIT2RTR,
+ .req_param = {
+ [UC] = (IB_QP_AV |
+ IB_QP_PATH_MTU |
+ IB_QP_DEST_QPN |
+ IB_QP_RQ_PSN),
+ [RC] = (IB_QP_AV |
+ IB_QP_PATH_MTU |
+ IB_QP_DEST_QPN |
+ IB_QP_RQ_PSN |
+ IB_QP_MAX_DEST_RD_ATOMIC |
+ IB_QP_MIN_RNR_TIMER),
+ },
+ .opt_param = {
+ [UD] = (IB_QP_PKEY_INDEX |
+ IB_QP_QKEY),
+ [UC] = (IB_QP_ALT_PATH |
+ IB_QP_ACCESS_FLAGS |
+ IB_QP_PKEY_INDEX),
+ [RC] = (IB_QP_ALT_PATH |
+ IB_QP_ACCESS_FLAGS |
+ IB_QP_PKEY_INDEX),
+ [MLX] = (IB_QP_PKEY_INDEX |
+ IB_QP_QKEY),
+ }
+ }
+ },
+ [IB_QPS_RTR] = {
+ [IB_QPS_RESET] = { .trans = MTHCA_TRANS_ANY2RST },
+ [IB_QPS_ERR] = { .trans = MTHCA_TRANS_ANY2ERR },
+ [IB_QPS_RTS] = {
+ .trans = MTHCA_TRANS_RTR2RTS,
+ .req_param = {
+ [UD] = IB_QP_SQ_PSN,
+ [UC] = IB_QP_SQ_PSN,
+ [RC] = (IB_QP_TIMEOUT |
+ IB_QP_RETRY_CNT |
+ IB_QP_RNR_RETRY |
+ IB_QP_SQ_PSN |
+ IB_QP_MAX_QP_RD_ATOMIC),
+ [MLX] = IB_QP_SQ_PSN,
+ },
+ .opt_param = {
+ [UD] = (IB_QP_CUR_STATE |
+ IB_QP_QKEY),
+ [UC] = (IB_QP_CUR_STATE |
+ IB_QP_ALT_PATH |
+ IB_QP_ACCESS_FLAGS |
+ IB_QP_PATH_MIG_STATE),
+ [RC] = (IB_QP_CUR_STATE |
+ IB_QP_ALT_PATH |
+ IB_QP_ACCESS_FLAGS |
+ IB_QP_MIN_RNR_TIMER |
+ IB_QP_PATH_MIG_STATE),
+ [MLX] = (IB_QP_CUR_STATE |
+ IB_QP_QKEY),
+ }
+ }
+ },
+ [IB_QPS_RTS] = {
+ [IB_QPS_RESET] = { .trans = MTHCA_TRANS_ANY2RST },
+ [IB_QPS_ERR] = { .trans = MTHCA_TRANS_ANY2ERR },
+ [IB_QPS_RTS] = {
+ .trans = MTHCA_TRANS_RTS2RTS,
+ .opt_param = {
+ [UD] = (IB_QP_CUR_STATE |
+ IB_QP_QKEY),
+ [UC] = (IB_QP_ACCESS_FLAGS |
+ IB_QP_ALT_PATH |
+ IB_QP_PATH_MIG_STATE),
+ [RC] = (IB_QP_ACCESS_FLAGS |
+ IB_QP_ALT_PATH |
+ IB_QP_PATH_MIG_STATE |
+ IB_QP_MIN_RNR_TIMER),
+ [MLX] = (IB_QP_CUR_STATE |
+ IB_QP_QKEY),
+ }
+ },
+ [IB_QPS_SQD] = {
+ .trans = MTHCA_TRANS_RTS2SQD,
+ },
+ },
+ [IB_QPS_SQD] = {
+ [IB_QPS_RESET] = { .trans = MTHCA_TRANS_ANY2RST },
+ [IB_QPS_ERR] = { .trans = MTHCA_TRANS_ANY2ERR },
+ [IB_QPS_RTS] = {
+ .trans = MTHCA_TRANS_SQD2RTS,
+ .opt_param = {
+ [UD] = (IB_QP_CUR_STATE |
+ IB_QP_QKEY),
+ [UC] = (IB_QP_CUR_STATE |
+ IB_QP_ALT_PATH |
+ IB_QP_ACCESS_FLAGS |
+ IB_QP_PATH_MIG_STATE),
+ [RC] = (IB_QP_CUR_STATE |
+ IB_QP_ALT_PATH |
+ IB_QP_ACCESS_FLAGS |
+ IB_QP_MIN_RNR_TIMER |
+ IB_QP_PATH_MIG_STATE),
+ [MLX] = (IB_QP_CUR_STATE |
+ IB_QP_QKEY),
+ }
+ },
+ [IB_QPS_SQD] = {
+ .trans = MTHCA_TRANS_SQD2SQD,
+ .opt_param = {
+ [UD] = (IB_QP_PKEY_INDEX |
+ IB_QP_QKEY),
+ [UC] = (IB_QP_AV |
+ IB_QP_CUR_STATE |
+ IB_QP_ALT_PATH |
+ IB_QP_ACCESS_FLAGS |
+ IB_QP_PKEY_INDEX |
+ IB_QP_PATH_MIG_STATE),
+ [RC] = (IB_QP_AV |
+ IB_QP_TIMEOUT |
+ IB_QP_RETRY_CNT |
+ IB_QP_RNR_RETRY |
+ IB_QP_MAX_QP_RD_ATOMIC |
+ IB_QP_MAX_DEST_RD_ATOMIC |
+ IB_QP_CUR_STATE |
+ IB_QP_ALT_PATH |
+ IB_QP_ACCESS_FLAGS |
+ IB_QP_PKEY_INDEX |
+ IB_QP_MIN_RNR_TIMER |
+ IB_QP_PATH_MIG_STATE),
+ [MLX] = (IB_QP_PKEY_INDEX |
+ IB_QP_QKEY),
+ }
+ }
+ },
+ [IB_QPS_SQE] = {
+ [IB_QPS_RESET] = { .trans = MTHCA_TRANS_ANY2RST },
+ [IB_QPS_ERR] = { .trans = MTHCA_TRANS_ANY2ERR },
+ [IB_QPS_RTS] = {
+ .trans = MTHCA_TRANS_SQERR2RTS,
+ .opt_param = {
+ [UD] = (IB_QP_CUR_STATE |
+ IB_QP_QKEY),
+ [UC] = (IB_QP_CUR_STATE |
+ IB_QP_ACCESS_FLAGS),
+ [MLX] = (IB_QP_CUR_STATE |
+ IB_QP_QKEY),
+ }
+ }
+ },
+ [IB_QPS_ERR] = {
+ [IB_QPS_RESET] = { .trans = MTHCA_TRANS_ANY2RST },
+ [IB_QPS_ERR] = { .trans = MTHCA_TRANS_ANY2ERR }
+ }
+};
+
static void store_attrs(struct mthca_sqp *sqp, struct ib_qp_attr *attr,
int attr_mask)
{
return cpu_to_be32(hw_access_flags);
}
-static inline enum ib_qp_state to_ib_qp_state(int mthca_state)
-{
- switch (mthca_state) {
- case MTHCA_QP_STATE_RST: return IB_QPS_RESET;
- case MTHCA_QP_STATE_INIT: return IB_QPS_INIT;
- case MTHCA_QP_STATE_RTR: return IB_QPS_RTR;
- case MTHCA_QP_STATE_RTS: return IB_QPS_RTS;
- case MTHCA_QP_STATE_DRAINING:
- case MTHCA_QP_STATE_SQD: return IB_QPS_SQD;
- case MTHCA_QP_STATE_SQE: return IB_QPS_SQE;
- case MTHCA_QP_STATE_ERR: return IB_QPS_ERR;
- default: return -1;
- }
-}
-
-static inline enum ib_mig_state to_ib_mig_state(int mthca_mig_state)
-{
- switch (mthca_mig_state) {
- case 0: return IB_MIG_ARMED;
- case 1: return IB_MIG_REARM;
- case 3: return IB_MIG_MIGRATED;
- default: return -1;
- }
-}
-
-static int to_ib_qp_access_flags(int mthca_flags)
-{
- int ib_flags = 0;
-
- if (mthca_flags & MTHCA_QP_BIT_RRE)
- ib_flags |= IB_ACCESS_REMOTE_READ;
- if (mthca_flags & MTHCA_QP_BIT_RWE)
- ib_flags |= IB_ACCESS_REMOTE_WRITE;
- if (mthca_flags & MTHCA_QP_BIT_RAE)
- ib_flags |= IB_ACCESS_REMOTE_ATOMIC;
-
- return ib_flags;
-}
-
-static void to_ib_ah_attr(struct mthca_dev *dev, struct ib_ah_attr *ib_ah_attr,
- struct mthca_qp_path *path)
-{
- memset(ib_ah_attr, 0, sizeof *path);
- ib_ah_attr->port_num = (be32_to_cpu(path->port_pkey) >> 24) & 0x3;
-
- if (ib_ah_attr->port_num == 0 || ib_ah_attr->port_num > dev->limits.num_ports)
- return;
-
- ib_ah_attr->dlid = be16_to_cpu(path->rlid);
- ib_ah_attr->sl = be32_to_cpu(path->sl_tclass_flowlabel) >> 28;
- ib_ah_attr->src_path_bits = path->g_mylmc & 0x7f;
- ib_ah_attr->static_rate = mthca_rate_to_ib(dev,
- path->static_rate & 0x7,
- ib_ah_attr->port_num);
- ib_ah_attr->ah_flags = (path->g_mylmc & (1 << 7)) ? IB_AH_GRH : 0;
- if (ib_ah_attr->ah_flags) {
- ib_ah_attr->grh.sgid_index = path->mgid_index & (dev->limits.gid_table_len - 1);
- ib_ah_attr->grh.hop_limit = path->hop_limit;
- ib_ah_attr->grh.traffic_class =
- (be32_to_cpu(path->sl_tclass_flowlabel) >> 20) & 0xff;
- ib_ah_attr->grh.flow_label =
- be32_to_cpu(path->sl_tclass_flowlabel) & 0xfffff;
- memcpy(ib_ah_attr->grh.dgid.raw,
- path->rgid, sizeof ib_ah_attr->grh.dgid.raw);
- }
-}
-
-int mthca_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr_mask,
- struct ib_qp_init_attr *qp_init_attr)
-{
- struct mthca_dev *dev = to_mdev(ibqp->device);
- struct mthca_qp *qp = to_mqp(ibqp);
- int err;
- struct mthca_mailbox *mailbox;
- struct mthca_qp_param *qp_param;
- struct mthca_qp_context *context;
- int mthca_state;
- u8 status;
-
- mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
- if (IS_ERR(mailbox))
- return PTR_ERR(mailbox);
-
- err = mthca_QUERY_QP(dev, qp->qpn, 0, mailbox, &status);
- if (err)
- goto out;
- if (status) {
- mthca_warn(dev, "QUERY_QP returned status %02x\n", status);
- err = -EINVAL;
- goto out;
- }
-
- qp_param = mailbox->buf;
- context = &qp_param->context;
- mthca_state = be32_to_cpu(context->flags) >> 28;
-
- qp_attr->qp_state = to_ib_qp_state(mthca_state);
- qp_attr->cur_qp_state = qp_attr->qp_state;
- qp_attr->path_mtu = context->mtu_msgmax >> 5;
- qp_attr->path_mig_state =
- to_ib_mig_state((be32_to_cpu(context->flags) >> 11) & 0x3);
- qp_attr->qkey = be32_to_cpu(context->qkey);
- qp_attr->rq_psn = be32_to_cpu(context->rnr_nextrecvpsn) & 0xffffff;
- qp_attr->sq_psn = be32_to_cpu(context->next_send_psn) & 0xffffff;
- qp_attr->dest_qp_num = be32_to_cpu(context->remote_qpn) & 0xffffff;
- qp_attr->qp_access_flags =
- to_ib_qp_access_flags(be32_to_cpu(context->params2));
- qp_attr->cap.max_send_wr = qp->sq.max;
- qp_attr->cap.max_recv_wr = qp->rq.max;
- qp_attr->cap.max_send_sge = qp->sq.max_gs;
- qp_attr->cap.max_recv_sge = qp->rq.max_gs;
- qp_attr->cap.max_inline_data = qp->max_inline_data;
-
- if (qp->transport == RC || qp->transport == UC) {
- to_ib_ah_attr(dev, &qp_attr->ah_attr, &context->pri_path);
- to_ib_ah_attr(dev, &qp_attr->alt_ah_attr, &context->alt_path);
- }
-
- qp_attr->pkey_index = be32_to_cpu(context->pri_path.port_pkey) & 0x7f;
- qp_attr->alt_pkey_index = be32_to_cpu(context->alt_path.port_pkey) & 0x7f;
-
- /* qp_attr->en_sqd_async_notify is only applicable in modify qp */
- qp_attr->sq_draining = mthca_state == MTHCA_QP_STATE_DRAINING;
-
- qp_attr->max_rd_atomic = 1 << ((be32_to_cpu(context->params1) >> 21) & 0x7);
-
- qp_attr->max_dest_rd_atomic =
- 1 << ((be32_to_cpu(context->params2) >> 21) & 0x7);
- qp_attr->min_rnr_timer =
- (be32_to_cpu(context->rnr_nextrecvpsn) >> 24) & 0x1f;
- qp_attr->port_num = qp_attr->ah_attr.port_num;
- qp_attr->timeout = context->pri_path.ackto >> 3;
- qp_attr->retry_cnt = (be32_to_cpu(context->params1) >> 16) & 0x7;
- qp_attr->rnr_retry = context->pri_path.rnr_retry >> 5;
- qp_attr->alt_port_num = qp_attr->alt_ah_attr.port_num;
- qp_attr->alt_timeout = context->alt_path.ackto >> 3;
- qp_init_attr->cap = qp_attr->cap;
-
-out:
- mthca_free_mailbox(dev, mailbox);
- return err;
-}
-
-static int mthca_path_set(struct mthca_dev *dev, struct ib_ah_attr *ah,
- struct mthca_qp_path *path, u8 port)
+static void mthca_path_set(struct ib_ah_attr *ah, struct mthca_qp_path *path)
{
path->g_mylmc = ah->src_path_bits & 0x7f;
path->rlid = cpu_to_be16(ah->dlid);
- path->static_rate = mthca_get_rate(dev, ah->static_rate, port);
+ path->static_rate = !!ah->static_rate;
if (ah->ah_flags & IB_AH_GRH) {
- if (ah->grh.sgid_index >= dev->limits.gid_table_len) {
- mthca_dbg(dev, "sgid_index (%u) too large. max is %d\n",
- ah->grh.sgid_index, dev->limits.gid_table_len-1);
- return -1;
- }
-
path->g_mylmc |= 1 << 7;
path->mgid_index = ah->grh.sgid_index;
path->hop_limit = ah->grh.hop_limit;
- path->sl_tclass_flowlabel =
+ path->sl_tclass_flowlabel =
cpu_to_be32((ah->sl << 28) |
- (ah->grh.traffic_class << 20) |
+ (ah->grh.traffic_class << 20) |
(ah->grh.flow_label));
memcpy(path->rgid, ah->grh.dgid.raw, 16);
} else
path->sl_tclass_flowlabel = cpu_to_be32(ah->sl << 28);
-
- return 0;
}
int mthca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask)
struct mthca_mailbox *mailbox;
struct mthca_qp_param *qp_param;
struct mthca_qp_context *qp_context;
- u32 sqd_event = 0;
+ u32 req_param, opt_param;
u8 status;
- int err = -EINVAL;
-
- mutex_lock(&qp->mutex);
+ int err;
if (attr_mask & IB_QP_CUR_STATE) {
- cur_state = attr->cur_qp_state;
+ if (attr->cur_qp_state != IB_QPS_RTR &&
+ attr->cur_qp_state != IB_QPS_RTS &&
+ attr->cur_qp_state != IB_QPS_SQD &&
+ attr->cur_qp_state != IB_QPS_SQE)
+ return -EINVAL;
+ else
+ cur_state = attr->cur_qp_state;
} else {
spin_lock_irq(&qp->sq.lock);
spin_lock(&qp->rq.lock);
spin_unlock_irq(&qp->sq.lock);
}
- new_state = attr_mask & IB_QP_STATE ? attr->qp_state : cur_state;
+ if (attr_mask & IB_QP_STATE) {
+ if (attr->qp_state < 0 || attr->qp_state > IB_QPS_ERR)
+ return -EINVAL;
+ new_state = attr->qp_state;
+ } else
+ new_state = cur_state;
+
+ if (state_table[cur_state][new_state].trans == MTHCA_TRANS_INVALID) {
+ mthca_dbg(dev, "Illegal QP transition "
+ "%d->%d\n", cur_state, new_state);
+ return -EINVAL;
+ }
+
+ req_param = state_table[cur_state][new_state].req_param[qp->transport];
+ opt_param = state_table[cur_state][new_state].opt_param[qp->transport];
- if (!ib_modify_qp_is_ok(cur_state, new_state, ibqp->qp_type, attr_mask)) {
- mthca_dbg(dev, "Bad QP transition (transport %d) "
- "%d->%d with attr 0x%08x\n",
- qp->transport, cur_state, new_state,
- attr_mask);
- goto out;
+ if ((req_param & attr_mask) != req_param) {
+ mthca_dbg(dev, "QP transition "
+ "%d->%d missing req attr 0x%08x\n",
+ cur_state, new_state,
+ req_param & ~attr_mask);
+ return -EINVAL;
}
- if ((attr_mask & IB_QP_PKEY_INDEX) &&
+ if (attr_mask & ~(req_param | opt_param | IB_QP_STATE)) {
+ mthca_dbg(dev, "QP transition (transport %d) "
+ "%d->%d has extra attr 0x%08x\n",
+ qp->transport,
+ cur_state, new_state,
+ attr_mask & ~(req_param | opt_param |
+ IB_QP_STATE));
+ return -EINVAL;
+ }
+
+ if ((attr_mask & IB_QP_PKEY_INDEX) &&
attr->pkey_index >= dev->limits.pkey_table_len) {
- mthca_dbg(dev, "P_Key index (%u) too large. max is %d\n",
- attr->pkey_index, dev->limits.pkey_table_len-1);
- goto out;
+ mthca_dbg(dev, "PKey index (%u) too large. max is %d\n",
+ attr->pkey_index,dev->limits.pkey_table_len-1);
+ return -EINVAL;
}
if ((attr_mask & IB_QP_PORT) &&
(attr->port_num == 0 || attr->port_num > dev->limits.num_ports)) {
mthca_dbg(dev, "Port number (%u) is invalid\n", attr->port_num);
- goto out;
+ return -EINVAL;
}
if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC &&
attr->max_rd_atomic > dev->limits.max_qp_init_rdma) {
mthca_dbg(dev, "Max rdma_atomic as initiator %u too large (max is %d)\n",
attr->max_rd_atomic, dev->limits.max_qp_init_rdma);
- goto out;
+ return -EINVAL;
}
if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC &&
attr->max_dest_rd_atomic > 1 << dev->qp_table.rdb_shift) {
mthca_dbg(dev, "Max rdma_atomic as responder %u too large (max %d)\n",
attr->max_dest_rd_atomic, 1 << dev->qp_table.rdb_shift);
- goto out;
+ return -EINVAL;
}
mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
- if (IS_ERR(mailbox)) {
- err = PTR_ERR(mailbox);
- goto out;
- }
+ if (IS_ERR(mailbox))
+ return PTR_ERR(mailbox);
qp_param = mailbox->buf;
qp_context = &qp_param->context;
memset(qp_param, 0, sizeof *qp_param);
if (qp->transport == MLX || qp->transport == UD)
qp_context->mtu_msgmax = (IB_MTU_2048 << 5) | 11;
- else if (attr_mask & IB_QP_PATH_MTU) {
- if (attr->path_mtu < IB_MTU_256 || attr->path_mtu > IB_MTU_2048) {
- mthca_dbg(dev, "path MTU (%u) is invalid\n",
- attr->path_mtu);
- goto out_mailbox;
- }
+ else if (attr_mask & IB_QP_PATH_MTU)
qp_context->mtu_msgmax = (attr->path_mtu << 5) | 31;
- }
if (mthca_is_memfree(dev)) {
if (qp->rq.max)
if (qp->transport == MLX)
qp_context->pri_path.port_pkey |=
- cpu_to_be32(qp->port << 24);
+ cpu_to_be32(to_msqp(qp)->port << 24);
else {
if (attr_mask & IB_QP_PORT) {
qp_context->pri_path.port_pkey |=
if (attr_mask & IB_QP_RNR_RETRY) {
qp_context->alt_path.rnr_retry = qp_context->pri_path.rnr_retry =
attr->rnr_retry << 5;
- qp_param->opt_param_mask |= cpu_to_be32(MTHCA_QP_OPTPAR_RNR_RETRY |
+ qp_param->opt_param_mask |= cpu_to_be32(MTHCA_QP_OPTPAR_RNR_RETRY |
MTHCA_QP_OPTPAR_ALT_RNR_RETRY);
}
if (attr_mask & IB_QP_AV) {
- if (mthca_path_set(dev, &attr->ah_attr, &qp_context->pri_path,
- attr_mask & IB_QP_PORT ? attr->port_num : qp->port))
- goto out_mailbox;
-
+ mthca_path_set(&attr->ah_attr, &qp_context->pri_path);
qp_param->opt_param_mask |= cpu_to_be32(MTHCA_QP_OPTPAR_PRIMARY_ADDR_PATH);
}
}
if (attr_mask & IB_QP_ALT_PATH) {
- if (attr->alt_pkey_index >= dev->limits.pkey_table_len) {
- mthca_dbg(dev, "Alternate P_Key index (%u) too large. max is %d\n",
- attr->alt_pkey_index, dev->limits.pkey_table_len-1);
- goto out_mailbox;
- }
-
if (attr->alt_port_num == 0 || attr->alt_port_num > dev->limits.num_ports) {
- mthca_dbg(dev, "Alternate port number (%u) is invalid\n",
+ mthca_dbg(dev, "Alternate port number (%u) is invalid\n",
attr->alt_port_num);
- goto out_mailbox;
+ return -EINVAL;
}
- if (mthca_path_set(dev, &attr->alt_ah_attr, &qp_context->alt_path,
- attr->alt_ah_attr.port_num))
- goto out_mailbox;
-
- qp_context->alt_path.port_pkey |= cpu_to_be32(attr->alt_pkey_index |
+ mthca_path_set(&attr->alt_ah_attr, &qp_context->alt_path);
+ qp_context->alt_path.port_pkey |= cpu_to_be32(attr->alt_pkey_index |
attr->alt_port_num << 24);
qp_context->alt_path.ackto = attr->alt_timeout << 3;
qp_param->opt_param_mask |= cpu_to_be32(MTHCA_QP_OPTPAR_ALT_ADDR_PATH);
qp_context->srqn = cpu_to_be32(1 << 24 |
to_msrq(ibqp->srq)->srqn);
- if (cur_state == IB_QPS_RTS && new_state == IB_QPS_SQD &&
- attr_mask & IB_QP_EN_SQD_ASYNC_NOTIFY &&
- attr->en_sqd_async_notify)
- sqd_event = 1 << 31;
-
- err = mthca_MODIFY_QP(dev, cur_state, new_state, qp->qpn, 0,
- mailbox, sqd_event, &status);
- if (err)
- goto out_mailbox;
+ err = mthca_MODIFY_QP(dev, state_table[cur_state][new_state].trans,
+ qp->qpn, 0, mailbox, 0, &status);
if (status) {
- mthca_warn(dev, "modify QP %d->%d returned status %02x.\n",
- cur_state, new_state, status);
+ mthca_warn(dev, "modify QP %d returned status %02x.\n",
+ state_table[cur_state][new_state].trans, status);
err = -EINVAL;
- goto out_mailbox;
}
- qp->state = new_state;
- if (attr_mask & IB_QP_ACCESS_FLAGS)
- qp->atomic_rd_en = attr->qp_access_flags;
- if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC)
- qp->resp_depth = attr->max_dest_rd_atomic;
- if (attr_mask & IB_QP_PORT)
- qp->port = attr->port_num;
- if (attr_mask & IB_QP_ALT_PATH)
- qp->alt_port = attr->alt_port_num;
+ if (!err) {
+ qp->state = new_state;
+ if (attr_mask & IB_QP_ACCESS_FLAGS)
+ qp->atomic_rd_en = attr->qp_access_flags;
+ if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC)
+ qp->resp_depth = attr->max_dest_rd_atomic;
+ }
+
+ mthca_free_mailbox(dev, mailbox);
if (is_sqp(dev, qp))
store_attrs(to_msqp(qp), attr, attr_mask);
if (is_qp0(dev, qp)) {
if (cur_state != IB_QPS_RTR &&
new_state == IB_QPS_RTR)
- init_port(dev, qp->port);
+ init_port(dev, to_msqp(qp)->port);
if (cur_state != IB_QPS_RESET &&
cur_state != IB_QPS_ERR &&
(new_state == IB_QPS_RESET ||
new_state == IB_QPS_ERR))
- mthca_CLOSE_IB(dev, qp->port, &status);
+ mthca_CLOSE_IB(dev, to_msqp(qp)->port, &status);
}
/*
* If we moved a kernel QP to RESET, clean up all old CQ
* entries and reinitialize the QP.
*/
- if (new_state == IB_QPS_RESET && !qp->ibqp.uobject) {
- mthca_cq_clean(dev, to_mcq(qp->ibqp.send_cq), qp->qpn,
+ if (!err && new_state == IB_QPS_RESET && !qp->ibqp.uobject) {
+ mthca_cq_clean(dev, to_mcq(qp->ibqp.send_cq)->cqn, qp->qpn,
qp->ibqp.srq ? to_msrq(qp->ibqp.srq) : NULL);
if (qp->ibqp.send_cq != qp->ibqp.recv_cq)
- mthca_cq_clean(dev, to_mcq(qp->ibqp.recv_cq), qp->qpn,
+ mthca_cq_clean(dev, to_mcq(qp->ibqp.recv_cq)->cqn, qp->qpn,
qp->ibqp.srq ? to_msrq(qp->ibqp.srq) : NULL);
- mthca_wq_reset(&qp->sq);
+ mthca_wq_init(&qp->sq);
qp->sq.last = get_send_wqe(qp, qp->sq.max - 1);
- mthca_wq_reset(&qp->rq);
+ mthca_wq_init(&qp->rq);
qp->rq.last = get_recv_wqe(qp, qp->rq.max - 1);
if (mthca_is_memfree(dev)) {
}
}
-out_mailbox:
- mthca_free_mailbox(dev, mailbox);
-
-out:
- mutex_unlock(&qp->mutex);
return err;
}
if (ret)
goto err_qpc;
- ret = mthca_table_get(dev, dev->qp_table.rdb_table,
- qp->qpn << dev->qp_table.rdb_shift);
- if (ret)
- goto err_eqpc;
+ ret = mthca_table_get(dev, dev->qp_table.rdb_table,
+ qp->qpn << dev->qp_table.rdb_shift);
+ if (ret)
+ goto err_eqpc;
}
int ret;
int i;
- qp->refcount = 1;
+ atomic_set(&qp->refcount, 1);
init_waitqueue_head(&qp->wait);
- mutex_init(&qp->mutex);
qp->state = IB_QPS_RESET;
qp->atomic_rd_en = 0;
qp->resp_depth = 0;
qp->sq_policy = send_policy;
- mthca_wq_reset(&qp->sq);
- mthca_wq_reset(&qp->rq);
-
- spin_lock_init(&qp->sq.lock);
- spin_lock_init(&qp->rq.lock);
+ mthca_wq_init(&qp->sq);
+ mthca_wq_init(&qp->rq);
ret = mthca_map_memfree(dev, qp);
if (ret)
{
int err;
+ err = mthca_set_qp_size(dev, cap, pd, qp);
+ if (err)
+ return err;
+
switch (type) {
case IB_QPT_RC: qp->transport = RC; break;
case IB_QPT_UC: qp->transport = UC; break;
default: return -EINVAL;
}
- err = mthca_set_qp_size(dev, cap, pd, qp);
- if (err)
- return err;
-
qp->qpn = mthca_alloc(&dev->qp_table.alloc);
if (qp->qpn == -1)
return -ENOMEM;
- /* initialize port to zero for error-catching. */
- qp->port = 0;
-
err = mthca_alloc_qp_common(dev, pd, send_cq, recv_cq,
send_policy, qp);
if (err) {
return 0;
}
-static void mthca_lock_cqs(struct mthca_cq *send_cq, struct mthca_cq *recv_cq)
-{
- if (send_cq == recv_cq)
- spin_lock_irq(&send_cq->lock);
- else if (send_cq->cqn < recv_cq->cqn) {
- spin_lock_irq(&send_cq->lock);
- spin_lock_nested(&recv_cq->lock, SINGLE_DEPTH_NESTING);
- } else {
- spin_lock_irq(&recv_cq->lock);
- spin_lock_nested(&send_cq->lock, SINGLE_DEPTH_NESTING);
- }
-}
-
-static void mthca_unlock_cqs(struct mthca_cq *send_cq, struct mthca_cq *recv_cq)
-{
- if (send_cq == recv_cq)
- spin_unlock_irq(&send_cq->lock);
- else if (send_cq->cqn < recv_cq->cqn) {
- spin_unlock(&recv_cq->lock);
- spin_unlock_irq(&send_cq->lock);
- } else {
- spin_unlock(&send_cq->lock);
- spin_unlock_irq(&recv_cq->lock);
- }
-}
-
int mthca_alloc_sqp(struct mthca_dev *dev,
struct mthca_pd *pd,
struct mthca_cq *send_cq,
u32 mqpn = qpn * 2 + dev->qp_table.sqp_start + port - 1;
int err;
- sqp->qp.transport = MLX;
err = mthca_set_qp_size(dev, cap, pd, &sqp->qp);
if (err)
return err;
if (err)
goto err_out;
- sqp->qp.port = port;
+ sqp->port = port;
sqp->qp.qpn = mqpn;
sqp->qp.transport = MLX;
* Lock CQs here, so that CQ polling code can do QP lookup
* without taking a lock.
*/
- mthca_lock_cqs(send_cq, recv_cq);
+ spin_lock_irq(&send_cq->lock);
+ if (send_cq != recv_cq)
+ spin_lock(&recv_cq->lock);
spin_lock(&dev->qp_table.lock);
mthca_array_clear(&dev->qp_table.qp, mqpn);
spin_unlock(&dev->qp_table.lock);
- mthca_unlock_cqs(send_cq, recv_cq);
+ if (send_cq != recv_cq)
+ spin_unlock(&recv_cq->lock);
+ spin_unlock_irq(&send_cq->lock);
err_out:
dma_free_coherent(&dev->pdev->dev, sqp->header_buf_size,
return err;
}
-static inline int get_qp_refcount(struct mthca_dev *dev, struct mthca_qp *qp)
-{
- int c;
-
- spin_lock_irq(&dev->qp_table.lock);
- c = qp->refcount;
- spin_unlock_irq(&dev->qp_table.lock);
-
- return c;
-}
-
void mthca_free_qp(struct mthca_dev *dev,
struct mthca_qp *qp)
{
* Lock CQs here, so that CQ polling code can do QP lookup
* without taking a lock.
*/
- mthca_lock_cqs(send_cq, recv_cq);
+ spin_lock_irq(&send_cq->lock);
+ if (send_cq != recv_cq)
+ spin_lock(&recv_cq->lock);
spin_lock(&dev->qp_table.lock);
mthca_array_clear(&dev->qp_table.qp,
qp->qpn & (dev->limits.num_qps - 1));
- --qp->refcount;
spin_unlock(&dev->qp_table.lock);
- mthca_unlock_cqs(send_cq, recv_cq);
+ if (send_cq != recv_cq)
+ spin_unlock(&recv_cq->lock);
+ spin_unlock_irq(&send_cq->lock);
- wait_event(qp->wait, !get_qp_refcount(dev, qp));
+ atomic_dec(&qp->refcount);
+ wait_event(qp->wait, !atomic_read(&qp->refcount));
if (qp->state != IB_QPS_RESET)
- mthca_MODIFY_QP(dev, qp->state, IB_QPS_RESET, qp->qpn, 0,
- NULL, 0, &status);
+ mthca_MODIFY_QP(dev, MTHCA_TRANS_ANY2RST, qp->qpn, 0, NULL, 0, &status);
/*
* If this is a userspace QP, the buffers, MR, CQs and so on
* unref the mem-free tables and free the QPN in our table.
*/
if (!qp->ibqp.uobject) {
- mthca_cq_clean(dev, to_mcq(qp->ibqp.send_cq), qp->qpn,
+ mthca_cq_clean(dev, to_mcq(qp->ibqp.send_cq)->cqn, qp->qpn,
qp->ibqp.srq ? to_msrq(qp->ibqp.srq) : NULL);
if (qp->ibqp.send_cq != qp->ibqp.recv_cq)
- mthca_cq_clean(dev, to_mcq(qp->ibqp.recv_cq), qp->qpn,
+ mthca_cq_clean(dev, to_mcq(qp->ibqp.recv_cq)->cqn, qp->qpn,
qp->ibqp.srq ? to_msrq(qp->ibqp.srq) : NULL);
mthca_free_memfree(dev, qp);
sqp->ud_header.lrh.source_lid = IB_LID_PERMISSIVE;
sqp->ud_header.bth.solicited_event = !!(wr->send_flags & IB_SEND_SOLICITED);
if (!sqp->qp.ibqp.qp_num)
- ib_get_cached_pkey(&dev->ib_dev, sqp->qp.port,
+ ib_get_cached_pkey(&dev->ib_dev, sqp->port,
sqp->pkey_index, &pkey);
else
- ib_get_cached_pkey(&dev->ib_dev, sqp->qp.port,
+ ib_get_cached_pkey(&dev->ib_dev, sqp->port,
wr->wr.ud.pkey_index, &pkey);
sqp->ud_header.bth.pkey = cpu_to_be16(pkey);
sqp->ud_header.bth.destination_qpn = cpu_to_be32(wr->wr.ud.remote_qpn);
int i;
int size;
int size0 = 0;
- u32 f0;
+ u32 f0 = 0;
int ind;
u8 op0 = 0;
mthca_opcode[wr->opcode]);
wmb();
((struct mthca_next_seg *) prev_wqe)->ee_nds =
- cpu_to_be32((size0 ? 0 : MTHCA_NEXT_DBD) | size |
- ((wr->send_flags & IB_SEND_FENCE) ?
- MTHCA_NEXT_FENCE : 0));
+ cpu_to_be32((size0 ? 0 : MTHCA_NEXT_DBD) | size);
if (!size0) {
size0 = size;
op0 = mthca_opcode[wr->opcode];
- f0 = wr->send_flags & IB_SEND_FENCE ?
- MTHCA_SEND_DOORBELL_FENCE : 0;
}
++ind;
mthca_write64(doorbell,
dev->kar + MTHCA_SEND_DOORBELL,
MTHCA_GET_DOORBELL_LOCK(&dev->doorbell_lock));
- /*
- * Make sure doorbells don't leak out of SQ spinlock
- * and reach the HCA out of order:
- */
- mmiowb();
}
qp->sq.next_ind = ind;
ind = qp->rq.next_ind;
- for (nreq = 0; wr; wr = wr->next) {
+ for (nreq = 0; wr; ++nreq, wr = wr->next) {
+ if (unlikely(nreq == MTHCA_TAVOR_MAX_WQES_PER_RECV_DB)) {
+ nreq = 0;
+
+ doorbell[0] = cpu_to_be32((qp->rq.next_ind << qp->rq.wqe_shift) | size0);
+ doorbell[1] = cpu_to_be32(qp->qpn << 8);
+
+ wmb();
+
+ mthca_write64(doorbell,
+ dev->kar + MTHCA_RECEIVE_DOORBELL,
+ MTHCA_GET_DOORBELL_LOCK(&dev->doorbell_lock));
+
+ qp->rq.head += MTHCA_TAVOR_MAX_WQES_PER_RECV_DB;
+ size0 = 0;
+ }
+
if (mthca_wq_overflow(&qp->rq, nreq, qp->ibqp.recv_cq)) {
mthca_err(dev, "RQ %06x full (%u head, %u tail,"
" %d max, %d nreq)\n", qp->qpn,
++ind;
if (unlikely(ind >= qp->rq.max))
ind -= qp->rq.max;
-
- ++nreq;
- if (unlikely(nreq == MTHCA_TAVOR_MAX_WQES_PER_RECV_DB)) {
- nreq = 0;
-
- doorbell[0] = cpu_to_be32((qp->rq.next_ind << qp->rq.wqe_shift) | size0);
- doorbell[1] = cpu_to_be32(qp->qpn << 8);
-
- wmb();
-
- mthca_write64(doorbell,
- dev->kar + MTHCA_RECEIVE_DOORBELL,
- MTHCA_GET_DOORBELL_LOCK(&dev->doorbell_lock));
-
- qp->rq.head += MTHCA_TAVOR_MAX_WQES_PER_RECV_DB;
- size0 = 0;
- }
}
out:
qp->rq.next_ind = ind;
qp->rq.head += nreq;
- /*
- * Make sure doorbells don't leak out of RQ spinlock and reach
- * the HCA out of order:
- */
- mmiowb();
-
spin_unlock_irqrestore(&qp->rq.lock, flags);
return err;
}
int i;
int size;
int size0 = 0;
- u32 f0;
+ u32 f0 = 0;
int ind;
u8 op0 = 0;
mthca_opcode[wr->opcode]);
wmb();
((struct mthca_next_seg *) prev_wqe)->ee_nds =
- cpu_to_be32(MTHCA_NEXT_DBD | size |
- ((wr->send_flags & IB_SEND_FENCE) ?
- MTHCA_NEXT_FENCE : 0));
+ cpu_to_be32(MTHCA_NEXT_DBD | size);
if (!size0) {
size0 = size;
op0 = mthca_opcode[wr->opcode];
- f0 = wr->send_flags & IB_SEND_FENCE ?
- MTHCA_SEND_DOORBELL_FENCE : 0;
}
++ind;
MTHCA_GET_DOORBELL_LOCK(&dev->doorbell_lock));
}
- /*
- * Make sure doorbells don't leak out of SQ spinlock and reach
- * the HCA out of order:
- */
- mmiowb();
-
spin_unlock_irqrestore(&qp->sq.lock, flags);
return err;
}
int i;
void *wqe;
- spin_lock_irqsave(&qp->rq.lock, flags);
+ spin_lock_irqsave(&qp->rq.lock, flags);
/* XXX check that state is OK to post receive */
return err;
}
-void mthca_free_err_wqe(struct mthca_dev *dev, struct mthca_qp *qp, int is_send,
- int index, int *dbd, __be32 *new_wqe)
+int mthca_free_err_wqe(struct mthca_dev *dev, struct mthca_qp *qp, int is_send,
+ int index, int *dbd, __be32 *new_wqe)
{
struct mthca_next_seg *next;
*/
if (qp->ibqp.srq) {
*new_wqe = 0;
- return;
+ return 0;
}
if (is_send)
(next->ee_nds & cpu_to_be32(0x3f));
else
*new_wqe = 0;
+
+ return 0;
}
int __devinit mthca_init_qp_table(struct mthca_dev *dev)
return err;
}
-void mthca_cleanup_qp_table(struct mthca_dev *dev)
+void __devexit mthca_cleanup_qp_table(struct mthca_dev *dev)
{
int i;
u8 status;
git://git.onelab.eu / linux-2.6.git / blobdiff