summaryrefslogtreecommitdiff
path: root/drivers/infiniband/hw/cxgb4/cm.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/infiniband/hw/cxgb4/cm.c')
-rw-r--r--drivers/infiniband/hw/cxgb4/cm.c73
1 files changed, 40 insertions, 33 deletions
diff --git a/drivers/infiniband/hw/cxgb4/cm.c b/drivers/infiniband/hw/cxgb4/cm.c
index 30e08bcc9afb..b3b45c49077d 100644
--- a/drivers/infiniband/hw/cxgb4/cm.c
+++ b/drivers/infiniband/hw/cxgb4/cm.c
@@ -77,9 +77,9 @@ static int enable_ecn;
module_param(enable_ecn, int, 0644);
MODULE_PARM_DESC(enable_ecn, "Enable ECN (default=0/disabled)");
-static int dack_mode = 1;
+static int dack_mode;
module_param(dack_mode, int, 0644);
-MODULE_PARM_DESC(dack_mode, "Delayed ack mode (default=1)");
+MODULE_PARM_DESC(dack_mode, "Delayed ack mode (default=0)");
uint c4iw_max_read_depth = 32;
module_param(c4iw_max_read_depth, int, 0644);
@@ -145,7 +145,7 @@ static void connect_reply_upcall(struct c4iw_ep *ep, int status);
static int sched(struct c4iw_dev *dev, struct sk_buff *skb);
static LIST_HEAD(timeout_list);
-static spinlock_t timeout_lock;
+static DEFINE_SPINLOCK(timeout_lock);
static void deref_cm_id(struct c4iw_ep_common *epc)
{
@@ -191,7 +191,7 @@ static void start_ep_timer(struct c4iw_ep *ep)
static int stop_ep_timer(struct c4iw_ep *ep)
{
pr_debug("ep %p stopping\n", ep);
- del_timer_sync(&ep->timer);
+ timer_delete_sync(&ep->timer);
if (!test_and_set_bit(TIMEOUT, &ep->com.flags)) {
c4iw_put_ep(&ep->com);
return 0;
@@ -734,7 +734,7 @@ static int send_connect(struct c4iw_ep *ep)
&ep->com.remote_addr;
int ret;
enum chip_type adapter_type = ep->com.dev->rdev.lldi.adapter_type;
- u32 isn = (prandom_u32() & ~7UL) - 1;
+ u32 isn = (get_random_u32() & ~7UL) - 1;
struct net_device *netdev;
u64 params;
@@ -1222,6 +1222,8 @@ static int act_establish(struct c4iw_dev *dev, struct sk_buff *skb)
int ret;
ep = lookup_atid(t, atid);
+ if (!ep)
+ return -EINVAL;
pr_debug("ep %p tid %u snd_isn %u rcv_isn %u\n", ep, tid,
be32_to_cpu(req->snd_isn), be32_to_cpu(req->rcv_isn));
@@ -1965,6 +1967,9 @@ static int send_fw_act_open_req(struct c4iw_ep *ep, unsigned int atid)
int win;
skb = get_skb(NULL, sizeof(*req), GFP_KERNEL);
+ if (!skb)
+ return -ENOMEM;
+
req = __skb_put_zero(skb, sizeof(*req));
req->op_compl = htonl(WR_OP_V(FW_OFLD_CONNECTION_WR));
req->len16_pkd = htonl(FW_WR_LEN16_V(DIV_ROUND_UP(sizeof(*req), 16)));
@@ -2081,7 +2086,7 @@ static int import_ep(struct c4iw_ep *ep, int iptype, __u8 *peer_ip,
err = -ENOMEM;
if (n->dev->flags & IFF_LOOPBACK) {
if (iptype == 4)
- pdev = ip_dev_find(&init_net, *(__be32 *)peer_ip);
+ pdev = __ip_dev_find(&init_net, *(__be32 *)peer_ip, false);
else if (IS_ENABLED(CONFIG_IPV6))
for_each_netdev(&init_net, pdev) {
if (ipv6_chk_addr(&init_net,
@@ -2096,12 +2101,12 @@ static int import_ep(struct c4iw_ep *ep, int iptype, __u8 *peer_ip,
err = -ENODEV;
goto out;
}
+ if (is_vlan_dev(pdev))
+ pdev = vlan_dev_real_dev(pdev);
ep->l2t = cxgb4_l2t_get(cdev->rdev.lldi.l2t,
n, pdev, rt_tos2priority(tos));
- if (!ep->l2t) {
- dev_put(pdev);
+ if (!ep->l2t)
goto out;
- }
ep->mtu = pdev->mtu;
ep->tx_chan = cxgb4_port_chan(pdev);
ep->smac_idx = ((struct port_info *)netdev_priv(pdev))->smt_idx;
@@ -2114,7 +2119,6 @@ static int import_ep(struct c4iw_ep *ep, int iptype, __u8 *peer_ip,
ep->rss_qid = cdev->rdev.lldi.rxq_ids[
cxgb4_port_idx(pdev) * step];
set_tcp_window(ep, (struct port_info *)netdev_priv(pdev));
- dev_put(pdev);
} else {
pdev = get_real_dev(n->dev);
ep->l2t = cxgb4_l2t_get(cdev->rdev.lldi.l2t,
@@ -2276,6 +2280,9 @@ static int act_open_rpl(struct c4iw_dev *dev, struct sk_buff *skb)
int ret = 0;
ep = lookup_atid(t, atid);
+ if (!ep)
+ return -EINVAL;
+
la = (struct sockaddr_in *)&ep->com.local_addr;
ra = (struct sockaddr_in *)&ep->com.remote_addr;
la6 = (struct sockaddr_in6 *)&ep->com.local_addr;
@@ -2468,30 +2475,24 @@ static int accept_cr(struct c4iw_ep *ep, struct sk_buff *skb,
opt2 |= CCTRL_ECN_V(1);
}
- skb_get(skb);
- rpl = cplhdr(skb);
if (!is_t4(adapter_type)) {
- skb_trim(skb, roundup(sizeof(*rpl5), 16));
- rpl5 = (void *)rpl;
- INIT_TP_WR(rpl5, ep->hwtid);
- } else {
- skb_trim(skb, sizeof(*rpl));
- INIT_TP_WR(rpl, ep->hwtid);
- }
- OPCODE_TID(rpl) = cpu_to_be32(MK_OPCODE_TID(CPL_PASS_ACCEPT_RPL,
- ep->hwtid));
+ u32 isn = (get_random_u32() & ~7UL) - 1;
- if (CHELSIO_CHIP_VERSION(adapter_type) > CHELSIO_T4) {
- u32 isn = (prandom_u32() & ~7UL) - 1;
+ skb = get_skb(skb, roundup(sizeof(*rpl5), 16), GFP_KERNEL);
+ rpl5 = __skb_put_zero(skb, roundup(sizeof(*rpl5), 16));
+ rpl = (void *)rpl5;
+ INIT_TP_WR_CPL(rpl5, CPL_PASS_ACCEPT_RPL, ep->hwtid);
opt2 |= T5_OPT_2_VALID_F;
opt2 |= CONG_CNTRL_V(CONG_ALG_TAHOE);
opt2 |= T5_ISS_F;
- rpl5 = (void *)rpl;
- memset(&rpl5->iss, 0, roundup(sizeof(*rpl5)-sizeof(*rpl), 16));
if (peer2peer)
isn += 4;
rpl5->iss = cpu_to_be32(isn);
pr_debug("iss %u\n", be32_to_cpu(rpl5->iss));
+ } else {
+ skb = get_skb(skb, sizeof(*rpl), GFP_KERNEL);
+ rpl = __skb_put_zero(skb, sizeof(*rpl));
+ INIT_TP_WR_CPL(rpl, CPL_PASS_ACCEPT_RPL, ep->hwtid);
}
rpl->opt0 = cpu_to_be64(opt0);
@@ -2682,6 +2683,9 @@ static int pass_establish(struct c4iw_dev *dev, struct sk_buff *skb)
u16 tcp_opt = ntohs(req->tcp_opt);
ep = get_ep_from_tid(dev, tid);
+ if (!ep)
+ return 0;
+
pr_debug("ep %p tid %u\n", ep, ep->hwtid);
ep->snd_seq = be32_to_cpu(req->snd_isn);
ep->rcv_seq = be32_to_cpu(req->rcv_isn);
@@ -2885,7 +2889,7 @@ static int peer_abort(struct c4iw_dev *dev, struct sk_buff *skb)
case MORIBUND:
case CLOSING:
stop_ep_timer(ep);
- /*FALLTHROUGH*/
+ fallthrough;
case FPDU_MODE:
if (ep->com.qp && ep->com.qp->srq) {
srqidx = ABORT_RSS_SRQIDX_G(
@@ -3282,7 +3286,7 @@ static int get_lladdr(struct net_device *dev, struct in6_addr *addr,
static int pick_local_ip6addrs(struct c4iw_dev *dev, struct iw_cm_id *cm_id)
{
- struct in6_addr uninitialized_var(addr);
+ struct in6_addr addr;
struct sockaddr_in6 *la6 = (struct sockaddr_in6 *)&cm_id->m_local_addr;
struct sockaddr_in6 *ra6 = (struct sockaddr_in6 *)&cm_id->m_remote_addr;
@@ -3610,13 +3614,14 @@ int c4iw_destroy_listen(struct iw_cm_id *cm_id)
ep->com.local_addr.ss_family == AF_INET) {
err = cxgb4_remove_server_filter(
ep->com.dev->rdev.lldi.ports[0], ep->stid,
- ep->com.dev->rdev.lldi.rxq_ids[0], 0);
+ ep->com.dev->rdev.lldi.rxq_ids[0], false);
} else {
struct sockaddr_in6 *sin6;
c4iw_init_wr_wait(ep->com.wr_waitp);
err = cxgb4_remove_server(
ep->com.dev->rdev.lldi.ports[0], ep->stid,
- ep->com.dev->rdev.lldi.rxq_ids[0], 0);
+ ep->com.dev->rdev.lldi.rxq_ids[0],
+ ep->com.local_addr.ss_family == AF_INET6);
if (err)
goto done;
err = c4iw_wait_for_reply(&ep->com.dev->rdev, ep->com.wr_waitp,
@@ -3759,7 +3764,7 @@ static void active_ofld_conn_reply(struct c4iw_dev *dev, struct sk_buff *skb,
send_fw_act_open_req(ep, atid);
return;
}
- /* fall through */
+ fallthrough;
case FW_EADDRINUSE:
set_bit(ACT_RETRY_INUSE, &ep->com.history);
if (ep->retry_count++ < ACT_OPEN_RETRY_COUNT) {
@@ -4149,6 +4154,10 @@ static int rx_pkt(struct c4iw_dev *dev, struct sk_buff *skb)
if (neigh->dev->flags & IFF_LOOPBACK) {
pdev = ip_dev_find(&init_net, iph->daddr);
+ if (!pdev) {
+ pr_err("%s - failed to find device!\n", __func__);
+ goto free_dst;
+ }
e = cxgb4_l2t_get(dev->rdev.lldi.l2t, neigh,
pdev, 0);
pi = (struct port_info *)netdev_priv(pdev);
@@ -4318,7 +4327,7 @@ static DECLARE_WORK(skb_work, process_work);
static void ep_timeout(struct timer_list *t)
{
- struct c4iw_ep *ep = from_timer(ep, t, timer);
+ struct c4iw_ep *ep = timer_container_of(ep, t, timer);
int kickit = 0;
spin_lock(&timeout_lock);
@@ -4451,7 +4460,6 @@ c4iw_handler_func c4iw_handlers[NUM_CPL_CMDS] = {
int __init c4iw_cm_init(void)
{
- spin_lock_init(&timeout_lock);
skb_queue_head_init(&rxq);
workq = alloc_ordered_workqueue("iw_cxgb4", WQ_MEM_RECLAIM);
@@ -4464,6 +4472,5 @@ int __init c4iw_cm_init(void)
void c4iw_cm_term(void)
{
WARN_ON(!list_empty(&timeout_list));
- flush_workqueue(workq);
destroy_workqueue(workq);
}
generated by cgit (git 2.34.1) at 2025-12-26 04:37:55 +0000