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path: root/drivers/infiniband/hw/cxgb3/iwch_cm.c
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Diffstat (limited to 'drivers/infiniband/hw/cxgb3/iwch_cm.c')
-rw-r--r--drivers/infiniband/hw/cxgb3/iwch_cm.c128
1 files changed, 58 insertions, 70 deletions
diff --git a/drivers/infiniband/hw/cxgb3/iwch_cm.c b/drivers/infiniband/hw/cxgb3/iwch_cm.c
index b2faff5abce8..1cdfcd43b0bc 100644
--- a/drivers/infiniband/hw/cxgb3/iwch_cm.c
+++ b/drivers/infiniband/hw/cxgb3/iwch_cm.c
@@ -139,7 +139,7 @@ static void release_tid(struct t3cdev *tdev, u32 hwtid, struct sk_buff *skb)
req->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_FORWARD));
OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_TID_RELEASE, hwtid));
skb->priority = CPL_PRIORITY_SETUP;
- tdev->send(tdev, skb);
+ cxgb3_ofld_send(tdev, skb);
return;
}
@@ -161,7 +161,7 @@ int iwch_quiesce_tid(struct iwch_ep *ep)
req->val = cpu_to_be64(1 << S_TCB_RX_QUIESCE);
skb->priority = CPL_PRIORITY_DATA;
- ep->com.tdev->send(ep->com.tdev, skb);
+ cxgb3_ofld_send(ep->com.tdev, skb);
return 0;
}
@@ -183,7 +183,7 @@ int iwch_resume_tid(struct iwch_ep *ep)
req->val = 0;
skb->priority = CPL_PRIORITY_DATA;
- ep->com.tdev->send(ep->com.tdev, skb);
+ cxgb3_ofld_send(ep->com.tdev, skb);
return 0;
}
@@ -229,9 +229,8 @@ static void *alloc_ep(int size, gfp_t gfp)
{
struct iwch_ep_common *epc;
- epc = kmalloc(size, gfp);
+ epc = kzalloc(size, gfp);
if (epc) {
- memset(epc, 0, size);
kref_init(&epc->kref);
spin_lock_init(&epc->lock);
init_waitqueue_head(&epc->waitq);
@@ -254,8 +253,6 @@ static void release_ep_resources(struct iwch_ep *ep)
cxgb3_remove_tid(ep->com.tdev, (void *)ep, ep->hwtid);
dst_release(ep->dst);
l2t_release(L2DATA(ep->com.tdev), ep->l2t);
- if (ep->com.tdev->type == T3B)
- release_tid(ep->com.tdev, ep->hwtid, NULL);
put_ep(&ep->com);
}
@@ -515,7 +512,7 @@ static void send_mpa_req(struct iwch_ep *ep, struct sk_buff *skb)
req->len = htonl(len);
req->param = htonl(V_TX_PORT(ep->l2t->smt_idx) |
V_TX_SNDBUF(snd_win>>15));
- req->flags = htonl(F_TX_IMM_ACK|F_TX_INIT);
+ req->flags = htonl(F_TX_INIT);
req->sndseq = htonl(ep->snd_seq);
BUG_ON(ep->mpa_skb);
ep->mpa_skb = skb;
@@ -566,7 +563,7 @@ static int send_mpa_reject(struct iwch_ep *ep, const void *pdata, u8 plen)
req->len = htonl(mpalen);
req->param = htonl(V_TX_PORT(ep->l2t->smt_idx) |
V_TX_SNDBUF(snd_win>>15));
- req->flags = htonl(F_TX_IMM_ACK|F_TX_INIT);
+ req->flags = htonl(F_TX_INIT);
req->sndseq = htonl(ep->snd_seq);
BUG_ON(ep->mpa_skb);
ep->mpa_skb = skb;
@@ -618,7 +615,7 @@ static int send_mpa_reply(struct iwch_ep *ep, const void *pdata, u8 plen)
req->len = htonl(len);
req->param = htonl(V_TX_PORT(ep->l2t->smt_idx) |
V_TX_SNDBUF(snd_win>>15));
- req->flags = htonl(F_TX_MORE | F_TX_IMM_ACK | F_TX_INIT);
+ req->flags = htonl(F_TX_INIT);
req->sndseq = htonl(ep->snd_seq);
ep->mpa_skb = skb;
state_set(&ep->com, MPA_REP_SENT);
@@ -641,6 +638,7 @@ static int act_establish(struct t3cdev *tdev, struct sk_buff *skb, void *ctx)
cxgb3_insert_tid(ep->com.tdev, &t3c_client, ep, tid);
ep->snd_seq = ntohl(req->snd_isn);
+ ep->rcv_seq = ntohl(req->rcv_isn);
set_emss(ep, ntohs(req->tcp_opt));
@@ -786,7 +784,7 @@ static int update_rx_credits(struct iwch_ep *ep, u32 credits)
OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_RX_DATA_ACK, ep->hwtid));
req->credit_dack = htonl(V_RX_CREDITS(credits) | V_RX_FORCE_ACK(1));
skb->priority = CPL_PRIORITY_ACK;
- ep->com.tdev->send(ep->com.tdev, skb);
+ cxgb3_ofld_send(ep->com.tdev, skb);
return credits;
}
@@ -1023,6 +1021,9 @@ static int rx_data(struct t3cdev *tdev, struct sk_buff *skb, void *ctx)
skb_pull(skb, sizeof(*hdr));
skb_trim(skb, dlen);
+ ep->rcv_seq += dlen;
+ BUG_ON(ep->rcv_seq != (ntohl(hdr->seq) + dlen));
+
switch (state_read(&ep->com)) {
case MPA_REQ_SENT:
process_mpa_reply(ep, skb);
@@ -1060,7 +1061,6 @@ static int tx_ack(struct t3cdev *tdev, struct sk_buff *skb, void *ctx)
struct iwch_ep *ep = ctx;
struct cpl_wr_ack *hdr = cplhdr(skb);
unsigned int credits = ntohs(hdr->credits);
- enum iwch_qp_attr_mask mask;
PDBG("%s ep %p credits %u\n", __FUNCTION__, ep, credits);
@@ -1072,30 +1072,6 @@ static int tx_ack(struct t3cdev *tdev, struct sk_buff *skb, void *ctx)
ep->mpa_skb = NULL;
dst_confirm(ep->dst);
if (state_read(&ep->com) == MPA_REP_SENT) {
- struct iwch_qp_attributes attrs;
-
- /* bind QP to EP and move to RTS */
- attrs.mpa_attr = ep->mpa_attr;
- attrs.max_ird = ep->ord;
- attrs.max_ord = ep->ord;
- attrs.llp_stream_handle = ep;
- attrs.next_state = IWCH_QP_STATE_RTS;
-
- /* bind QP and TID with INIT_WR */
- mask = IWCH_QP_ATTR_NEXT_STATE |
- IWCH_QP_ATTR_LLP_STREAM_HANDLE |
- IWCH_QP_ATTR_MPA_ATTR |
- IWCH_QP_ATTR_MAX_IRD |
- IWCH_QP_ATTR_MAX_ORD;
-
- ep->com.rpl_err = iwch_modify_qp(ep->com.qp->rhp,
- ep->com.qp, mask, &attrs, 1);
-
- if (!ep->com.rpl_err) {
- state_set(&ep->com, FPDU_MODE);
- established_upcall(ep);
- }
-
ep->com.rpl_done = 1;
PDBG("waking up ep %p\n", ep);
wake_up(&ep->com.waitq);
@@ -1124,6 +1100,15 @@ static int abort_rpl(struct t3cdev *tdev, struct sk_buff *skb, void *ctx)
return CPL_RET_BUF_DONE;
}
+/*
+ * Return whether a failed active open has allocated a TID
+ */
+static inline int act_open_has_tid(int status)
+{
+ return status != CPL_ERR_TCAM_FULL && status != CPL_ERR_CONN_EXIST &&
+ status != CPL_ERR_ARP_MISS;
+}
+
static int act_open_rpl(struct t3cdev *tdev, struct sk_buff *skb, void *ctx)
{
struct iwch_ep *ep = ctx;
@@ -1133,7 +1118,7 @@ static int act_open_rpl(struct t3cdev *tdev, struct sk_buff *skb, void *ctx)
status2errno(rpl->status));
connect_reply_upcall(ep, status2errno(rpl->status));
state_set(&ep->com, DEAD);
- if (ep->com.tdev->type == T3B)
+ if (ep->com.tdev->type == T3B && act_open_has_tid(rpl->status))
release_tid(ep->com.tdev, GET_TID(rpl), NULL);
cxgb3_free_atid(ep->com.tdev, ep->atid);
dst_release(ep->dst);
@@ -1167,7 +1152,7 @@ static int listen_start(struct iwch_listen_ep *ep)
req->opt1 = htonl(V_CONN_POLICY(CPL_CONN_POLICY_ASK));
skb->priority = 1;
- ep->com.tdev->send(ep->com.tdev, skb);
+ cxgb3_ofld_send(ep->com.tdev, skb);
return 0;
}
@@ -1201,7 +1186,7 @@ static int listen_stop(struct iwch_listen_ep *ep)
req->cpu_idx = 0;
OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_CLOSE_LISTSRV_REQ, ep->stid));
skb->priority = 1;
- ep->com.tdev->send(ep->com.tdev, skb);
+ cxgb3_ofld_send(ep->com.tdev, skb);
return 0;
}
@@ -1279,7 +1264,7 @@ static void reject_cr(struct t3cdev *tdev, u32 hwtid, __be32 peer_ip,
rpl->opt0l_status = htonl(CPL_PASS_OPEN_REJECT);
rpl->opt2 = 0;
rpl->rsvd = rpl->opt2;
- tdev->send(tdev, skb);
+ cxgb3_ofld_send(tdev, skb);
}
}
@@ -1378,6 +1363,7 @@ static int pass_establish(struct t3cdev *tdev, struct sk_buff *skb, void *ctx)
PDBG("%s ep %p\n", __FUNCTION__, ep);
ep->snd_seq = ntohl(req->snd_isn);
+ ep->rcv_seq = ntohl(req->rcv_isn);
set_emss(ep, ntohs(req->tcp_opt));
@@ -1485,6 +1471,13 @@ static int peer_abort(struct t3cdev *tdev, struct sk_buff *skb, void *ctx)
int ret;
int state;
+ if (is_neg_adv_abort(req->status)) {
+ PDBG("%s neg_adv_abort ep %p tid %d\n", __FUNCTION__, ep,
+ ep->hwtid);
+ t3_l2t_send_event(ep->com.tdev, ep->l2t);
+ return CPL_RET_BUF_DONE;
+ }
+
/*
* We get 2 peer aborts from the HW. The first one must
* be ignored except for scribbling that we need one more.
@@ -1494,13 +1487,6 @@ static int peer_abort(struct t3cdev *tdev, struct sk_buff *skb, void *ctx)
return CPL_RET_BUF_DONE;
}
- if (is_neg_adv_abort(req->status)) {
- PDBG("%s neg_adv_abort ep %p tid %d\n", __FUNCTION__, ep,
- ep->hwtid);
- t3_l2t_send_event(ep->com.tdev, ep->l2t);
- return CPL_RET_BUF_DONE;
- }
-
state = state_read(&ep->com);
PDBG("%s ep %p state %u\n", __FUNCTION__, ep, state);
switch (state) {
@@ -1571,7 +1557,7 @@ static int peer_abort(struct t3cdev *tdev, struct sk_buff *skb, void *ctx)
rpl->wr.wr_lo = htonl(V_WR_TID(ep->hwtid));
OPCODE_TID(rpl) = htonl(MK_OPCODE_TID(CPL_ABORT_RPL, ep->hwtid));
rpl->cmd = CPL_ABORT_NO_RST;
- ep->com.tdev->send(ep->com.tdev, rpl_skb);
+ cxgb3_ofld_send(ep->com.tdev, rpl_skb);
if (state != ABORTING) {
state_set(&ep->com, DEAD);
release_ep_resources(ep);
@@ -1732,10 +1718,8 @@ int iwch_accept_cr(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
struct iwch_qp *qp = get_qhp(h, conn_param->qpn);
PDBG("%s ep %p tid %u\n", __FUNCTION__, ep, ep->hwtid);
- if (state_read(&ep->com) == DEAD) {
- put_ep(&ep->com);
+ if (state_read(&ep->com) == DEAD)
return -ECONNRESET;
- }
BUG_ON(state_read(&ep->com) != MPA_REQ_RCVD);
BUG_ON(!qp);
@@ -1755,17 +1739,8 @@ int iwch_accept_cr(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
ep->ird = conn_param->ird;
ep->ord = conn_param->ord;
PDBG("%s %d ird %d ord %d\n", __FUNCTION__, __LINE__, ep->ird, ep->ord);
+
get_ep(&ep->com);
- err = send_mpa_reply(ep, conn_param->private_data,
- conn_param->private_data_len);
- if (err) {
- ep->com.cm_id = NULL;
- ep->com.qp = NULL;
- cm_id->rem_ref(cm_id);
- abort_connection(ep, NULL, GFP_KERNEL);
- put_ep(&ep->com);
- return err;
- }
/* bind QP to EP and move to RTS */
attrs.mpa_attr = ep->mpa_attr;
@@ -1783,16 +1758,28 @@ int iwch_accept_cr(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
err = iwch_modify_qp(ep->com.qp->rhp,
ep->com.qp, mask, &attrs, 1);
+ if (err)
+ goto err;
- if (err) {
- ep->com.cm_id = NULL;
- ep->com.qp = NULL;
- cm_id->rem_ref(cm_id);
- abort_connection(ep, NULL, GFP_KERNEL);
- } else {
- state_set(&ep->com, FPDU_MODE);
- established_upcall(ep);
- }
+ err = send_mpa_reply(ep, conn_param->private_data,
+ conn_param->private_data_len);
+ if (err)
+ goto err;
+
+ /* wait for wr_ack */
+ wait_event(ep->com.waitq, ep->com.rpl_done);
+ err = ep->com.rpl_err;
+ if (err)
+ goto err;
+
+ state_set(&ep->com, FPDU_MODE);
+ established_upcall(ep);
+ put_ep(&ep->com);
+ return 0;
+err:
+ ep->com.cm_id = NULL;
+ ep->com.qp = NULL;
+ cm_id->rem_ref(cm_id);
put_ep(&ep->com);
return err;
}
@@ -1926,6 +1913,7 @@ int iwch_create_listen(struct iw_cm_id *cm_id, int backlog)
fail3:
cxgb3_free_stid(ep->com.tdev, ep->stid);
fail2:
+ cm_id->rem_ref(cm_id);
put_ep(&ep->com);
fail1:
out:
generated by cgit v1.2.3 (git 2.0.4) at 2024-05-23 02:49:07 +0000