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RDMA/cxgb4: Fix bug for active and passive LE hash collision path

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Retries active opens for INUSE errors.

Logs any active ofld_connect_wr error replies.

Sends ofld_connect_wr on same ctrlq. It needs to go  on the same control txq as
regular CPL active/passive messages.

Retries on active open replies with EADDRINUSE.

Uses active open fw wr only if active filter region is set.

Adds stat for ofld_connect_wr failures.

This patch also adds debugfs file to show endpoints.

Signed-off-by: Vipul Pandya <vipul@chelsio.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
This commit is contained in:
Vipul Pandya 2012-12-10 09:30:56 +00:00 committed by Roland Dreier
parent 1cab775c3e
commit 793dad94e7
7 changed files with 376 additions and 88 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

277
drivers/infiniband/hw/cxgb4/cm.c
View File

@ -275,6 +275,7 @@ void _c4iw_free_ep(struct kref *kref)
cxgb4_remove_tid(ep->com.dev->rdev.lldi.tids, 0, ep->hwtid);
dst_release(ep->dst);
cxgb4_l2t_release(ep->l2t);
remove_handle(ep->com.dev, &ep->com.dev->hwtid_idr, ep->hwtid);
}
kfree(ep);
}
@ -550,6 +551,7 @@ static int send_connect(struct c4iw_ep *ep)
req->opt0 = cpu_to_be64(opt0);
req->params = cpu_to_be32(select_ntuple(ep->com.dev, ep->dst, ep->l2t));
req->opt2 = cpu_to_be32(opt2);
set_bit(ACT_OPEN_REQ, &ep->com.history);
return c4iw_l2t_send(&ep->com.dev->rdev, skb, ep->l2t);
}
@ -826,6 +828,7 @@ static int act_establish(struct c4iw_dev *dev, struct sk_buff *skb)
/* setup the hwtid for this connection */
ep->hwtid = tid;
cxgb4_insert_tid(t, ep, tid);
insert_handle(dev, &dev->hwtid_idr, ep, ep->hwtid);
ep->snd_seq = be32_to_cpu(req->snd_isn);
ep->rcv_seq = be32_to_cpu(req->rcv_isn);
@ -833,7 +836,9 @@ static int act_establish(struct c4iw_dev *dev, struct sk_buff *skb)
set_emss(ep, ntohs(req->tcp_opt));
/* dealloc the atid */
remove_handle(ep->com.dev, &ep->com.dev->atid_idr, atid);
cxgb4_free_atid(t, atid);
set_bit(ACT_ESTAB, &ep->com.history);
/* start MPA negotiation */
send_flowc(ep, NULL);
@ -859,6 +864,7 @@ static void close_complete_upcall(struct c4iw_ep *ep)
ep->com.cm_id->rem_ref(ep->com.cm_id);
ep->com.cm_id = NULL;
ep->com.qp = NULL;
set_bit(CLOSE_UPCALL, &ep->com.history);
}
}
@ -867,6 +873,7 @@ static int abort_connection(struct c4iw_ep *ep, struct sk_buff *skb, gfp_t gfp)
PDBG("%s ep %p tid %u\n", __func__, ep, ep->hwtid);
close_complete_upcall(ep);
state_set(&ep->com, ABORTING);
set_bit(ABORT_CONN, &ep->com.history);
return send_abort(ep, skb, gfp);
}
@ -881,6 +888,7 @@ static void peer_close_upcall(struct c4iw_ep *ep)
PDBG("peer close delivered ep %p cm_id %p tid %u\n",
ep, ep->com.cm_id, ep->hwtid);
ep->com.cm_id->event_handler(ep->com.cm_id, &event);
set_bit(DISCONN_UPCALL, &ep->com.history);
}
}
@ -899,6 +907,7 @@ static void peer_abort_upcall(struct c4iw_ep *ep)
ep->com.cm_id->rem_ref(ep->com.cm_id);
ep->com.cm_id = NULL;
ep->com.qp = NULL;
set_bit(ABORT_UPCALL, &ep->com.history);
}
}
@ -931,6 +940,7 @@ static void connect_reply_upcall(struct c4iw_ep *ep, int status)
PDBG("%s ep %p tid %u status %d\n", __func__, ep,
ep->hwtid, status);
set_bit(CONN_RPL_UPCALL, &ep->com.history);
ep->com.cm_id->event_handler(ep->com.cm_id, &event);
if (status < 0) {
@ -971,6 +981,7 @@ static void connect_request_upcall(struct c4iw_ep *ep)
ep->parent_ep->com.cm_id,
&event);
}
set_bit(CONNREQ_UPCALL, &ep->com.history);
c4iw_put_ep(&ep->parent_ep->com);
ep->parent_ep = NULL;
}
@ -987,6 +998,7 @@ static void established_upcall(struct c4iw_ep *ep)
if (ep->com.cm_id) {
PDBG("%s ep %p tid %u\n", __func__, ep, ep->hwtid);
ep->com.cm_id->event_handler(ep->com.cm_id, &event);
set_bit(ESTAB_UPCALL, &ep->com.history);
}
}
@ -1372,6 +1384,7 @@ static int rx_data(struct c4iw_dev *dev, struct sk_buff *skb)
unsigned int dlen = ntohs(hdr->len);
unsigned int tid = GET_TID(hdr);
struct tid_info *t = dev->rdev.lldi.tids;
__u8 status = hdr->status;
ep = lookup_tid(t, tid);
PDBG("%s ep %p tid %u dlen %u\n", __func__, ep, ep->hwtid, dlen);
@ -1394,9 +1407,9 @@ static int rx_data(struct c4iw_dev *dev, struct sk_buff *skb)
case MPA_REP_SENT:
break;
default:
printk(KERN_ERR MOD "%s Unexpected streaming data."
" ep %p state %d tid %u\n",
__func__, ep, state_read(&ep->com), ep->hwtid);
pr_err("%s Unexpected streaming data." \
" ep %p state %d tid %u status %d\n",
__func__, ep, state_read(&ep->com), ep->hwtid, status);
/*
* The ep will timeout and inform the ULP of the failure.
@ -1463,6 +1476,7 @@ static void send_fw_act_open_req(struct c4iw_ep *ep, unsigned int atid)
req->tcb.cplrxdataack_cplpassacceptrpl =
htons(F_FW_OFLD_CONNECTION_WR_CPLRXDATAACK);
req->tcb.tx_max = jiffies;
req->tcb.rcv_adv = htons(1);
cxgb4_best_mtu(ep->com.dev->rdev.lldi.mtus, ep->mtu, &mtu_idx);
wscale = compute_wscale(rcv_win);
req->tcb.opt0 = TCAM_BYPASS(1) |
@ -1490,7 +1504,8 @@ static void send_fw_act_open_req(struct c4iw_ep *ep, unsigned int atid)
req->tcb.opt2 |= WND_SCALE_EN(1);
req->tcb.opt0 = cpu_to_be64(req->tcb.opt0);
req->tcb.opt2 = cpu_to_be32(req->tcb.opt2);
set_wr_txq(skb, CPL_PRIORITY_CONTROL, 0);
set_wr_txq(skb, CPL_PRIORITY_CONTROL, ep->ctrlq_idx);
set_bit(ACT_OFLD_CONN, &ep->com.history);
c4iw_l2t_send(&ep->com.dev->rdev, skb, ep->l2t);
}
@ -1503,6 +1518,111 @@ static inline int act_open_has_tid(int status)
status != CPL_ERR_ARP_MISS;
}
#define ACT_OPEN_RETRY_COUNT 2
static int c4iw_reconnect(struct c4iw_ep *ep)
{
int err = 0;
struct rtable *rt;
struct port_info *pi;
struct net_device *pdev;
int step;
struct neighbour *neigh;
PDBG("%s qp %p cm_id %p\n", __func__, ep->com.qp, ep->com.cm_id);
init_timer(&ep->timer);
/*
* Allocate an active TID to initiate a TCP connection.
*/
ep->atid = cxgb4_alloc_atid(ep->com.dev->rdev.lldi.tids, ep);
if (ep->atid == -1) {
pr_err("%s - cannot alloc atid.\n", __func__);
err = -ENOMEM;
goto fail2;
}
insert_handle(ep->com.dev, &ep->com.dev->atid_idr, ep, ep->atid);
/* find a route */
rt = find_route(ep->com.dev,
ep->com.cm_id->local_addr.sin_addr.s_addr,
ep->com.cm_id->remote_addr.sin_addr.s_addr,
ep->com.cm_id->local_addr.sin_port,
ep->com.cm_id->remote_addr.sin_port, 0);
if (!rt) {
pr_err("%s - cannot find route.\n", __func__);
err = -EHOSTUNREACH;
goto fail3;
}
ep->dst = &rt->dst;
neigh = dst_neigh_lookup(ep->dst,
&ep->com.cm_id->remote_addr.sin_addr.s_addr);
/* get a l2t entry */
if (neigh->dev->flags & IFF_LOOPBACK) {
PDBG("%s LOOPBACK\n", __func__);
pdev = ip_dev_find(&init_net,
ep->com.cm_id->remote_addr.sin_addr.s_addr);
ep->l2t = cxgb4_l2t_get(ep->com.dev->rdev.lldi.l2t,
neigh, pdev, 0);
pi = (struct port_info *)netdev_priv(pdev);
ep->mtu = pdev->mtu;
ep->tx_chan = cxgb4_port_chan(pdev);
ep->smac_idx = (cxgb4_port_viid(pdev) & 0x7F) << 1;
dev_put(pdev);
} else {
ep->l2t = cxgb4_l2t_get(ep->com.dev->rdev.lldi.l2t,
neigh, neigh->dev, 0);
pi = (struct port_info *)netdev_priv(neigh->dev);
ep->mtu = dst_mtu(ep->dst);
ep->tx_chan = cxgb4_port_chan(neigh->dev);
ep->smac_idx = (cxgb4_port_viid(neigh->dev) &
0x7F) << 1;
}
step = ep->com.dev->rdev.lldi.ntxq / ep->com.dev->rdev.lldi.nchan;
ep->txq_idx = pi->port_id * step;
ep->ctrlq_idx = pi->port_id;
step = ep->com.dev->rdev.lldi.nrxq / ep->com.dev->rdev.lldi.nchan;
ep->rss_qid = ep->com.dev->rdev.lldi.rxq_ids[pi->port_id * step];
if (!ep->l2t) {
pr_err("%s - cannot alloc l2e.\n", __func__);
err = -ENOMEM;
goto fail4;
}
PDBG("%s txq_idx %u tx_chan %u smac_idx %u rss_qid %u l2t_idx %u\n",
__func__, ep->txq_idx, ep->tx_chan, ep->smac_idx, ep->rss_qid,
ep->l2t->idx);
state_set(&ep->com, CONNECTING);
ep->tos = 0;
/* send connect request to rnic */
err = send_connect(ep);
if (!err)
goto out;
cxgb4_l2t_release(ep->l2t);
fail4:
dst_release(ep->dst);
fail3:
remove_handle(ep->com.dev, &ep->com.dev->atid_idr, ep->atid);
cxgb4_free_atid(ep->com.dev->rdev.lldi.tids, ep->atid);
fail2:
/*
* remember to send notification to upper layer.
* We are in here so the upper layer is not aware that this is
* re-connect attempt and so, upper layer is still waiting for
* response of 1st connect request.
*/
connect_reply_upcall(ep, -ECONNRESET);
c4iw_put_ep(&ep->com);
out:
return err;
}
static int act_open_rpl(struct c4iw_dev *dev, struct sk_buff *skb)
{
struct c4iw_ep *ep;
@ -1523,6 +1643,8 @@ static int act_open_rpl(struct c4iw_dev *dev, struct sk_buff *skb)
return 0;
}
set_bit(ACT_OPEN_RPL, &ep->com.history);
/*
* Log interesting failures.
*/
@ -1531,12 +1653,27 @@ static int act_open_rpl(struct c4iw_dev *dev, struct sk_buff *skb)
case CPL_ERR_CONN_TIMEDOUT:
break;
case CPL_ERR_TCAM_FULL:
mutex_lock(&dev->rdev.stats.lock);
dev->rdev.stats.tcam_full++;
mutex_unlock(&dev->rdev.stats.lock);
send_fw_act_open_req(ep,
GET_TID_TID(GET_AOPEN_ATID(ntohl(rpl->atid_status))));
return 0;
if (dev->rdev.lldi.enable_fw_ofld_conn) {
mutex_lock(&dev->rdev.stats.lock);
dev->rdev.stats.tcam_full++;
mutex_unlock(&dev->rdev.stats.lock);
send_fw_act_open_req(ep,
GET_TID_TID(GET_AOPEN_ATID(
ntohl(rpl->atid_status))));
return 0;
}
break;
case CPL_ERR_CONN_EXIST:
if (ep->retry_count++ < ACT_OPEN_RETRY_COUNT) {
set_bit(ACT_RETRY_INUSE, &ep->com.history);
remove_handle(ep->com.dev, &ep->com.dev->atid_idr,
atid);
cxgb4_free_atid(t, atid);
dst_release(ep->dst);
cxgb4_l2t_release(ep->l2t);
c4iw_reconnect(ep);
return 0;
}
break;
default:
printk(KERN_INFO MOD "Active open failure - "
@ -1555,6 +1692,7 @@ static int act_open_rpl(struct c4iw_dev *dev, struct sk_buff *skb)
if (status && act_open_has_tid(status))
cxgb4_remove_tid(ep->com.dev->rdev.lldi.tids, 0, GET_TID(rpl));
remove_handle(ep->com.dev, &ep->com.dev->atid_idr, atid);
cxgb4_free_atid(t, atid);
dst_release(ep->dst);
cxgb4_l2t_release(ep->l2t);
@ -1775,7 +1913,7 @@ out:
static int pass_accept_req(struct c4iw_dev *dev, struct sk_buff *skb)
{
struct c4iw_ep *child_ep, *parent_ep;
struct c4iw_ep *child_ep = NULL, *parent_ep;
struct cpl_pass_accept_req *req = cplhdr(skb);
unsigned int stid = GET_POPEN_TID(ntohl(req->tos_stid));
struct tid_info *t = dev->rdev.lldi.tids;
@ -1856,6 +1994,7 @@ static int pass_accept_req(struct c4iw_dev *dev, struct sk_buff *skb)
init_timer(&child_ep->timer);
cxgb4_insert_tid(t, child_ep, hwtid);
accept_cr(child_ep, peer_ip, skb, req);
set_bit(PASS_ACCEPT_REQ, &child_ep->com.history);
goto out;
reject:
reject_cr(dev, hwtid, peer_ip, skb);
@ -1879,11 +2018,13 @@ static int pass_establish(struct c4iw_dev *dev, struct sk_buff *skb)
ntohs(req->tcp_opt));
set_emss(ep, ntohs(req->tcp_opt));
insert_handle(dev, &dev->hwtid_idr, ep, ep->hwtid);
dst_confirm(ep->dst);
state_set(&ep->com, MPA_REQ_WAIT);
start_ep_timer(ep);
send_flowc(ep, skb);
set_bit(PASS_ESTAB, &ep->com.history);
return 0;
}
@ -1903,6 +2044,7 @@ static int peer_close(struct c4iw_dev *dev, struct sk_buff *skb)
PDBG("%s ep %p tid %u\n", __func__, ep, ep->hwtid);
dst_confirm(ep->dst);
set_bit(PEER_CLOSE, &ep->com.history);
mutex_lock(&ep->com.mutex);
switch (ep->com.state) {
case MPA_REQ_WAIT:
@ -1982,74 +2124,6 @@ static int is_neg_adv_abort(unsigned int status)
status == CPL_ERR_PERSIST_NEG_ADVICE;
}
static int c4iw_reconnect(struct c4iw_ep *ep)
{
struct rtable *rt;
int err = 0;
PDBG("%s qp %p cm_id %p\n", __func__, ep->com.qp, ep->com.cm_id);
init_timer(&ep->timer);
/*
* Allocate an active TID to initiate a TCP connection.
*/
ep->atid = cxgb4_alloc_atid(ep->com.dev->rdev.lldi.tids, ep);
if (ep->atid == -1) {
printk(KERN_ERR MOD "%s - cannot alloc atid.\n", __func__);
err = -ENOMEM;
goto fail2;
}
/* find a route */
rt = find_route(ep->com.dev,
ep->com.cm_id->local_addr.sin_addr.s_addr,
ep->com.cm_id->remote_addr.sin_addr.s_addr,
ep->com.cm_id->local_addr.sin_port,
ep->com.cm_id->remote_addr.sin_port, 0);
if (!rt) {
printk(KERN_ERR MOD "%s - cannot find route.\n", __func__);
err = -EHOSTUNREACH;
goto fail3;
}
ep->dst = &rt->dst;
err = import_ep(ep, ep->com.cm_id->remote_addr.sin_addr.s_addr,
ep->dst, ep->com.dev, false);
if (err) {
printk(KERN_ERR MOD "%s - cannot alloc l2e.\n", __func__);
goto fail4;
}
PDBG("%s txq_idx %u tx_chan %u smac_idx %u rss_qid %u l2t_idx %u\n",
__func__, ep->txq_idx, ep->tx_chan, ep->smac_idx, ep->rss_qid,
ep->l2t->idx);
state_set(&ep->com, CONNECTING);
ep->tos = 0;
/* send connect request to rnic */
err = send_connect(ep);
if (!err)
goto out;
cxgb4_l2t_release(ep->l2t);
fail4:
dst_release(ep->dst);
fail3:
cxgb4_free_atid(ep->com.dev->rdev.lldi.tids, ep->atid);
fail2:
/*
* remember to send notification to upper layer.
* We are in here so the upper layer is not aware that this is
* re-connect attempt and so, upper layer is still waiting for
* response of 1st connect request.
*/
connect_reply_upcall(ep, -ECONNRESET);
c4iw_put_ep(&ep->com);
out:
return err;
}
static int peer_abort(struct c4iw_dev *dev, struct sk_buff *skb)
{
struct cpl_abort_req_rss *req = cplhdr(skb);
@ -2070,6 +2144,7 @@ static int peer_abort(struct c4iw_dev *dev, struct sk_buff *skb)
}
PDBG("%s ep %p tid %u state %u\n", __func__, ep, ep->hwtid,
ep->com.state);
set_bit(PEER_ABORT, &ep->com.history);
/*
* Wake up any threads in rdma_init() or rdma_fini().
@ -2284,6 +2359,7 @@ int c4iw_reject_cr(struct iw_cm_id *cm_id, const void *pdata, u8 pdata_len)
c4iw_put_ep(&ep->com);
return -ECONNRESET;
}
set_bit(ULP_REJECT, &ep->com.history);
BUG_ON(state_read(&ep->com) != MPA_REQ_RCVD);
if (mpa_rev == 0)
abort_connection(ep, NULL, GFP_KERNEL);
@ -2313,6 +2389,7 @@ int c4iw_accept_cr(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
BUG_ON(state_read(&ep->com) != MPA_REQ_RCVD);
BUG_ON(!qp);
set_bit(ULP_ACCEPT, &ep->com.history);
if ((conn_param->ord > c4iw_max_read_depth) ||
(conn_param->ird > c4iw_max_read_depth)) {
abort_connection(ep, NULL, GFP_KERNEL);
@ -2436,6 +2513,7 @@ int c4iw_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
err = -ENOMEM;
goto fail2;
}
insert_handle(dev, &dev->atid_idr, ep, ep->atid);
PDBG("%s saddr 0x%x sport 0x%x raddr 0x%x rport 0x%x\n", __func__,
ntohl(cm_id->local_addr.sin_addr.s_addr),
@ -2481,6 +2559,7 @@ int c4iw_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
fail4:
dst_release(ep->dst);
fail3:
remove_handle(ep->com.dev, &ep->com.dev->atid_idr, ep->atid);
cxgb4_free_atid(ep->com.dev->rdev.lldi.tids, ep->atid);
fail2:
cm_id->rem_ref(cm_id);
@ -2523,6 +2602,7 @@ int c4iw_create_listen(struct iw_cm_id *cm_id, int backlog)
err = -ENOMEM;
goto fail2;
}
insert_handle(dev, &dev->stid_idr, ep, ep->stid);
state_set(&ep->com, LISTEN);
if (dev->rdev.lldi.enable_fw_ofld_conn) {
do {
@ -2530,7 +2610,10 @@ int c4iw_create_listen(struct iw_cm_id *cm_id, int backlog)
ep->com.dev->rdev.lldi.ports[0], ep->stid,
ep->com.local_addr.sin_addr.s_addr,
ep->com.local_addr.sin_port,
ep->com.dev->rdev.lldi.rxq_ids[0]);
0,
ep->com.dev->rdev.lldi.rxq_ids[0],
0,
0);
if (err == -EBUSY) {
set_current_state(TASK_UNINTERRUPTIBLE);
schedule_timeout(usecs_to_jiffies(100));
@ -2541,6 +2624,7 @@ int c4iw_create_listen(struct iw_cm_id *cm_id, int backlog)
err = cxgb4_create_server(ep->com.dev->rdev.lldi.ports[0],
ep->stid, ep->com.local_addr.sin_addr.s_addr,
ep->com.local_addr.sin_port,
0,
ep->com.dev->rdev.lldi.rxq_ids[0]);
if (!err)
err = c4iw_wait_for_reply(&ep->com.dev->rdev,
@ -2586,6 +2670,7 @@ int c4iw_destroy_listen(struct iw_cm_id *cm_id)
err = c4iw_wait_for_reply(&ep->com.dev->rdev, &ep->com.wr_wait,
0, 0, __func__);
}
remove_handle(ep->com.dev, &ep->com.dev->stid_idr, ep->stid);
cxgb4_free_stid(ep->com.dev->rdev.lldi.tids, ep->stid, PF_INET);
done:
cm_id->rem_ref(cm_id);
@ -2649,10 +2734,13 @@ int c4iw_ep_disconnect(struct c4iw_ep *ep, int abrupt, gfp_t gfp)
if (close) {
if (abrupt) {
set_bit(EP_DISC_ABORT, &ep->com.history);
close_complete_upcall(ep);
ret = send_abort(ep, NULL, gfp);
} else
} else {
set_bit(EP_DISC_CLOSE, &ep->com.history);
ret = send_halfclose(ep, gfp);
}
if (ret)
fatal = 1;
}
@ -2666,6 +2754,7 @@ static void active_ofld_conn_reply(struct c4iw_dev *dev, struct sk_buff *skb,
struct cpl_fw6_msg_ofld_connection_wr_rpl *req)
{
struct c4iw_ep *ep;
int atid = be32_to_cpu(req->tid);
ep = (struct c4iw_ep *)lookup_atid(dev->rdev.lldi.tids, req->tid);
if (!ep)
@ -2673,15 +2762,35 @@ static void active_ofld_conn_reply(struct c4iw_dev *dev, struct sk_buff *skb,
switch (req->retval) {
case FW_ENOMEM:
set_bit(ACT_RETRY_NOMEM, &ep->com.history);
if (ep->retry_count++ < ACT_OPEN_RETRY_COUNT) {
send_fw_act_open_req(ep, atid);
return;
}
case FW_EADDRINUSE:
PDBG("%s ofld conn wr ret %d\n", __func__, req->retval);
set_bit(ACT_RETRY_INUSE, &ep->com.history);
if (ep->retry_count++ < ACT_OPEN_RETRY_COUNT) {
send_fw_act_open_req(ep, atid);
return;
}
break;
default:
pr_info("%s unexpected ofld conn wr retval %d\n",
__func__, req->retval);
break;
}
pr_err("active ofld_connect_wr failure %d atid %d\n",
req->retval, atid);
mutex_lock(&dev->rdev.stats.lock);
dev->rdev.stats.act_ofld_conn_fails++;
mutex_unlock(&dev->rdev.stats.lock);
connect_reply_upcall(ep, status2errno(req->retval));
state_set(&ep->com, DEAD);
remove_handle(dev, &dev->atid_idr, atid);
cxgb4_free_atid(dev->rdev.lldi.tids, atid);
dst_release(ep->dst);
cxgb4_l2t_release(ep->l2t);
c4iw_put_ep(&ep->com);
}
static void passive_ofld_conn_reply(struct c4iw_dev *dev, struct sk_buff *skb,
@ -2695,6 +2804,9 @@ static void passive_ofld_conn_reply(struct c4iw_dev *dev, struct sk_buff *skb,
BUG_ON(!rpl_skb);
if (req->retval) {
PDBG("%s passive open failure %d\n", __func__, req->retval);
mutex_lock(&dev->rdev.stats.lock);
dev->rdev.stats.pas_ofld_conn_fails++;
mutex_unlock(&dev->rdev.stats.lock);
kfree_skb(rpl_skb);
} else {
cpl = (struct cpl_pass_accept_req *)cplhdr(rpl_skb);
@ -2989,6 +3101,7 @@ static void process_timeout(struct c4iw_ep *ep)
mutex_lock(&ep->com.mutex);
PDBG("%s ep %p tid %u state %d\n", __func__, ep, ep->hwtid,
ep->com.state);
set_bit(TIMEDOUT, &ep->com.history);
switch (ep->com.state) {
case MPA_REQ_SENT:
__state_set(&ep->com, ABORTING);

125
drivers/infiniband/hw/cxgb4/device.c
View File

@ -280,6 +280,10 @@ static int stats_show(struct seq_file *seq, void *v)
db_state_str[dev->db_state],
dev->rdev.stats.db_state_transitions);
seq_printf(seq, "TCAM_FULL: %10llu\n", dev->rdev.stats.tcam_full);
seq_printf(seq, "ACT_OFLD_CONN_FAILS: %10llu\n",
dev->rdev.stats.act_ofld_conn_fails);
seq_printf(seq, "PAS_OFLD_CONN_FAILS: %10llu\n",
dev->rdev.stats.pas_ofld_conn_fails);
return 0;
}
@ -310,6 +314,9 @@ static ssize_t stats_clear(struct file *file, const char __user *buf,
dev->rdev.stats.db_empty = 0;
dev->rdev.stats.db_drop = 0;
dev->rdev.stats.db_state_transitions = 0;
dev->rdev.stats.tcam_full = 0;
dev->rdev.stats.act_ofld_conn_fails = 0;
dev->rdev.stats.pas_ofld_conn_fails = 0;
mutex_unlock(&dev->rdev.stats.lock);
return count;
}
@ -323,6 +330,113 @@ static const struct file_operations stats_debugfs_fops = {
.write = stats_clear,
};
static int dump_ep(int id, void *p, void *data)
{
struct c4iw_ep *ep = p;
struct c4iw_debugfs_data *epd = data;
int space;
int cc;
space = epd->bufsize - epd->pos - 1;
if (space == 0)
return 1;
cc = snprintf(epd->buf + epd->pos, space,
"ep %p cm_id %p qp %p state %d flags 0x%lx history 0x%lx "
"hwtid %d atid %d %pI4:%d <-> %pI4:%d\n",
ep, ep->com.cm_id, ep->com.qp, (int)ep->com.state,
ep->com.flags, ep->com.history, ep->hwtid, ep->atid,
&ep->com.local_addr.sin_addr.s_addr,
ntohs(ep->com.local_addr.sin_port),
&ep->com.remote_addr.sin_addr.s_addr,
ntohs(ep->com.remote_addr.sin_port));
if (cc < space)
epd->pos += cc;
return 0;
}
static int dump_listen_ep(int id, void *p, void *data)
{
struct c4iw_listen_ep *ep = p;
struct c4iw_debugfs_data *epd = data;
int space;
int cc;
space = epd->bufsize - epd->pos - 1;
if (space == 0)
return 1;
cc = snprintf(epd->buf + epd->pos, space,
"ep %p cm_id %p state %d flags 0x%lx stid %d backlog %d "
"%pI4:%d\n", ep, ep->com.cm_id, (int)ep->com.state,
ep->com.flags, ep->stid, ep->backlog,
&ep->com.local_addr.sin_addr.s_addr,
ntohs(ep->com.local_addr.sin_port));
if (cc < space)
epd->pos += cc;
return 0;
}
static int ep_release(struct inode *inode, struct file *file)
{
struct c4iw_debugfs_data *epd = file->private_data;
if (!epd) {
pr_info("%s null qpd?\n", __func__);
return 0;
}
vfree(epd->buf);
kfree(epd);
return 0;
}
static int ep_open(struct inode *inode, struct file *file)
{
struct c4iw_debugfs_data *epd;
int ret = 0;
int count = 1;
epd = kmalloc(sizeof(*epd), GFP_KERNEL);
if (!epd) {
ret = -ENOMEM;
goto out;
}
epd->devp = inode->i_private;
epd->pos = 0;
spin_lock_irq(&epd->devp->lock);
idr_for_each(&epd->devp->hwtid_idr, count_idrs, &count);
idr_for_each(&epd->devp->atid_idr, count_idrs, &count);
idr_for_each(&epd->devp->stid_idr, count_idrs, &count);
spin_unlock_irq(&epd->devp->lock);
epd->bufsize = count * 160;
epd->buf = vmalloc(epd->bufsize);
if (!epd->buf) {
ret = -ENOMEM;
goto err1;
}
spin_lock_irq(&epd->devp->lock);
idr_for_each(&epd->devp->hwtid_idr, dump_ep, epd);
idr_for_each(&epd->devp->atid_idr, dump_ep, epd);
idr_for_each(&epd->devp->stid_idr, dump_listen_ep, epd);
spin_unlock_irq(&epd->devp->lock);
file->private_data = epd;
goto out;
err1:
kfree(epd);
out:
return ret;
}
static const struct file_operations ep_debugfs_fops = {
.owner = THIS_MODULE,
.open = ep_open,
.release = ep_release,
.read = debugfs_read,
};
static int setup_debugfs(struct c4iw_dev *devp)
{
struct dentry *de;
@ -345,6 +459,11 @@ static int setup_debugfs(struct c4iw_dev *devp)
if (de && de->d_inode)
de->d_inode->i_size = 4096;
de = debugfs_create_file("eps", S_IWUSR, devp->debugfs_root,
(void *)devp, &ep_debugfs_fops);
if (de && de->d_inode)
de->d_inode->i_size = 4096;
return 0;
}
@ -476,6 +595,9 @@ static void c4iw_dealloc(struct uld_ctx *ctx)
idr_destroy(&ctx->dev->cqidr);
idr_destroy(&ctx->dev->qpidr);
idr_destroy(&ctx->dev->mmidr);
idr_destroy(&ctx->dev->hwtid_idr);
idr_destroy(&ctx->dev->stid_idr);
idr_destroy(&ctx->dev->atid_idr);
iounmap(ctx->dev->rdev.oc_mw_kva);
ib_dealloc_device(&ctx->dev->ibdev);
ctx->dev = NULL;
@ -533,6 +655,9 @@ static struct c4iw_dev *c4iw_alloc(const struct cxgb4_lld_info *infop)
idr_init(&devp->cqidr);
idr_init(&devp->qpidr);
idr_init(&devp->mmidr);
idr_init(&devp->hwtid_idr);
idr_init(&devp->stid_idr);
idr_init(&devp->atid_idr);
spin_lock_init(&devp->lock);
mutex_init(&devp->rdev.stats.lock);
mutex_init(&devp->db_mutex);

32
drivers/infiniband/hw/cxgb4/iw_cxgb4.h
View File

@ -131,6 +131,8 @@ struct c4iw_stats {
u64 db_drop;
u64 db_state_transitions;
u64 tcam_full;
u64 act_ofld_conn_fails;
u64 pas_ofld_conn_fails;
};
struct c4iw_rdev {
@ -224,6 +226,9 @@ struct c4iw_dev {
struct dentry *debugfs_root;
enum db_state db_state;
int qpcnt;
struct idr hwtid_idr;
struct idr atid_idr;
struct idr stid_idr;
};
static inline struct c4iw_dev *to_c4iw_dev(struct ib_device *ibdev)
@ -713,6 +718,31 @@ enum c4iw_ep_flags {
CLOSE_SENT = 3,
};
enum c4iw_ep_history {
ACT_OPEN_REQ = 0,
ACT_OFLD_CONN = 1,
ACT_OPEN_RPL = 2,
ACT_ESTAB = 3,
PASS_ACCEPT_REQ = 4,
PASS_ESTAB = 5,
ABORT_UPCALL = 6,
ESTAB_UPCALL = 7,
CLOSE_UPCALL = 8,
ULP_ACCEPT = 9,
ULP_REJECT = 10,
TIMEDOUT = 11,
PEER_ABORT = 12,
PEER_CLOSE = 13,
CONNREQ_UPCALL = 14,
ABORT_CONN = 15,
DISCONN_UPCALL = 16,
EP_DISC_CLOSE = 17,
EP_DISC_ABORT = 18,
CONN_RPL_UPCALL = 19,
ACT_RETRY_NOMEM = 20,
ACT_RETRY_INUSE = 21
};
struct c4iw_ep_common {
struct iw_cm_id *cm_id;
struct c4iw_qp *qp;
@ -724,6 +754,7 @@ struct c4iw_ep_common {
struct sockaddr_in remote_addr;
struct c4iw_wr_wait wr_wait;
unsigned long flags;
unsigned long history;
};
struct c4iw_listen_ep {
@ -761,6 +792,7 @@ struct c4iw_ep {
u8 tos;
u8 retry_with_mpa_v1;
u8 tried_with_mpa_v1;
unsigned int retry_count;
};
static inline struct c4iw_ep *to_ep(struct iw_cm_id *cm_id)

1
drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
View File

@ -530,6 +530,7 @@ struct adapter {
struct net_device *port[MAX_NPORTS];
u8 chan_map[NCHAN]; /* channel -> port map */
u32 filter_mode;
unsigned int l2t_start;
unsigned int l2t_end;
struct l2t_data *l2t;

19
drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
View File

@ -2670,7 +2670,8 @@ static int tid_init(struct tid_info *t)
* Returns <0 on error and one of the %NET_XMIT_* values on success.
*/
int cxgb4_create_server(const struct net_device *dev, unsigned int stid,
__be32 sip, __be16 sport, unsigned int queue)
__be32 sip, __be16 sport, __be16 vlan,
unsigned int queue)
{
unsigned int chan;
struct sk_buff *skb;
@ -3043,7 +3044,7 @@ static void uld_attach(struct adapter *adap, unsigned int uld)
lli.ucq_density = 1 << QUEUESPERPAGEPF0_GET(
t4_read_reg(adap, SGE_INGRESS_QUEUES_PER_PAGE_PF) >>
(adap->fn * 4));
lli.filt_mode = tp_vlan_pri_map;
lli.filt_mode = adap->filter_mode;
/* MODQ_REQ_MAP sets queues 0-3 to chan 0-3 */
for (i = 0; i < NCHAN; i++)
lli.tx_modq[i] = i;
@ -3307,7 +3308,8 @@ static int delete_filter(struct adapter *adapter, unsigned int fidx)
}
int cxgb4_create_server_filter(const struct net_device *dev, unsigned int stid,
__be32 sip, __be16 sport, unsigned int queue)
__be32 sip, __be16 sport, __be16 vlan,
unsigned int queue, unsigned char port, unsigned char mask)
{
int ret;
struct filter_entry *f;
@ -3339,11 +3341,16 @@ int cxgb4_create_server_filter(const struct net_device *dev, unsigned int stid,
f->fs.val.lport = cpu_to_be16(sport);
f->fs.mask.lport = ~0;
val = (u8 *)&sip;
if ((val[0] | val[1] | val[2] | val[3]) != 0)
if ((val[0] | val[1] | val[2] | val[3]) != 0) {
for (i = 0; i < 4; i++) {
f->fs.val.lip[i] = val[i];
f->fs.mask.lip[i] = ~0;
}
if (adap->filter_mode & F_PORT) {
f->fs.val.iport = port;
f->fs.mask.iport = mask;
}
}
f->fs.dirsteer = 1;
f->fs.iq = queue;
@ -4450,6 +4457,10 @@ static int adap_init0(struct adapter *adap)
for (j = 0; j < NCHAN; j++)
adap->params.tp.tx_modq[j] = j;
t4_read_indirect(adap, TP_PIO_ADDR, TP_PIO_DATA,
&adap->filter_mode, 1,
TP_VLAN_PRI_MAP);
adap->flags |= FW_OK;
return 0;

8
drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
View File

@ -38,6 +38,7 @@
#include <linux/cache.h>
#include <linux/spinlock.h>
#include <linux/skbuff.h>
#include <linux/inetdevice.h>
#include <linux/atomic.h>
/* CPL message priority levels */
@ -151,9 +152,12 @@ void cxgb4_remove_tid(struct tid_info *t, unsigned int qid, unsigned int tid);
struct in6_addr;
int cxgb4_create_server(const struct net_device *dev, unsigned int stid,
__be32 sip, __be16 sport, unsigned int queue);
__be32 sip, __be16 sport, __be16 vlan,
unsigned int queue);
int cxgb4_create_server_filter(const struct net_device *dev, unsigned int stid,
__be32 sip, __be16 sport, unsigned int queue);
__be32 sip, __be16 sport, __be16 vlan,
unsigned int queue,
unsigned char port, unsigned char mask);
int cxgb4_remove_server_filter(const struct net_device *dev, unsigned int stid,
unsigned int queue, bool ipv6);
static inline void set_wr_txq(struct sk_buff *skb, int prio, int queue)

2
drivers/net/ethernet/chelsio/cxgb4/t4_regs.h
View File

@ -1098,5 +1098,7 @@
#define A_TP_TX_SCHED_PCMD 0x25
#define S_PORT 1
#define V_PORT(x) ((x) << S_PORT)
#define F_PORT V_PORT(1U)
#endif /* __T4_REGS_H */