Author: np Date: Sat Oct 10 01:41:07 2015 New Revision: 289103 URL: https://svnweb.freebsd.org/changeset/base/289103
Log: iw_cxgbe: fix for page fault in cm_close_handler(). This is roughly the iw_cxgbe equivalent of https://github.com/torvalds/linux/commit/be13b2dff8c4e41846477b22cc5c164ea5a6ac2e ----------------- RDMA/cxgb4: Connect_request_upcall fixes When processing an MPA Start Request, if the listening endpoint is DEAD, then abort the connection. If the IWCM returns an error, then we must abort the connection and release resources. Also abort_connection() should not post a CLOSE event, so clean that up too. Signed-off-by: Steve Wise <[email protected]> Signed-off-by: Roland Dreier <[email protected]> ----------------- Submitted by: Krishnamraju Eraparaju at chelsio dot com. Modified: head/sys/dev/cxgbe/iw_cxgbe/cm.c Modified: head/sys/dev/cxgbe/iw_cxgbe/cm.c ============================================================================== --- head/sys/dev/cxgbe/iw_cxgbe/cm.c Sat Oct 10 01:31:39 2015 (r289102) +++ head/sys/dev/cxgbe/iw_cxgbe/cm.c Sat Oct 10 01:41:07 2015 (r289103) @@ -99,7 +99,7 @@ static int abort_connection(struct c4iw_ static void peer_close_upcall(struct c4iw_ep *ep); static void peer_abort_upcall(struct c4iw_ep *ep); static void connect_reply_upcall(struct c4iw_ep *ep, int status); -static void connect_request_upcall(struct c4iw_ep *ep); +static int connect_request_upcall(struct c4iw_ep *ep); static void established_upcall(struct c4iw_ep *ep); static void process_mpa_reply(struct c4iw_ep *ep); static void process_mpa_request(struct c4iw_ep *ep); @@ -1216,7 +1216,6 @@ static int abort_connection(struct c4iw_ int err; CTR2(KTR_IW_CXGBE, "%s:abB %p", __func__, ep); - close_complete_upcall(ep, -ECONNRESET); state_set(&ep->com, ABORTING); abort_socket(ep); err = close_socket(&ep->com, 0); @@ -1319,9 +1318,10 @@ static void connect_reply_upcall(struct CTR2(KTR_IW_CXGBE, "%s:cruE %p", __func__, ep); } -static void connect_request_upcall(struct c4iw_ep *ep) +static int connect_request_upcall(struct c4iw_ep *ep) { struct iw_cm_event event; + int ret; CTR3(KTR_IW_CXGBE, "%s: ep %p, mpa_v1 %d", __func__, ep, ep->tried_with_mpa_v1); @@ -1355,10 +1355,14 @@ static void connect_request_upcall(struc } c4iw_get_ep(&ep->com); - ep->parent_ep->com.cm_id->event_handler(ep->parent_ep->com.cm_id, + ret = ep->parent_ep->com.cm_id->event_handler(ep->parent_ep->com.cm_id, &event); + if(ret) + c4iw_put_ep(&ep->com); + set_bit(CONNREQ_UPCALL, &ep->com.history); c4iw_put_ep(&ep->parent_ep->com); + return ret; } static void established_upcall(struct c4iw_ep *ep) @@ -1835,9 +1839,11 @@ abort: /* drive upcall */ mutex_lock(&ep->parent_ep->com.mutex); - if (ep->parent_ep->com.state != DEAD) - connect_request_upcall(ep); - else + if (ep->parent_ep->com.state != DEAD) { + if(connect_request_upcall(ep)) { + abort_connection(ep); + } + }else abort_connection(ep); mutex_unlock(&ep->parent_ep->com.mutex); } @@ -2213,7 +2219,7 @@ int c4iw_ep_disconnect(struct c4iw_ep *e CTR2(KTR_IW_CXGBE, "%s:ced1 %p", __func__, ep); fatal = 1; - close_complete_upcall(ep, -EIO); + close_complete_upcall(ep, -ECONNRESET); ep->com.state = DEAD; } CTR3(KTR_IW_CXGBE, "%s:ced2 %p %s", __func__, ep, _______________________________________________ [email protected] mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "[email protected]"
