diff options
author | 2016-04-11 10:41:07 +0300 | |
---|---|---|
committer | 2016-04-13 08:17:18 +0300 | |
commit | e09b41010ba33a20a87472ee821fa407a5b8da36 (patch) | |
tree | d10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/net/rds/rdma_transport.c | |
parent | f93b97fd65072de626c074dbe099a1fff05ce060 (diff) |
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page.
During the rebasing, the following patch collided:
Force tick interrupt and get rid of softirq magic(I70131fb85).
Collisions have been removed because its logic was found on the
source already.
Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/net/rds/rdma_transport.c')
-rw-r--r-- | kernel/net/rds/rdma_transport.c | 53 |
1 files changed, 18 insertions, 35 deletions
diff --git a/kernel/net/rds/rdma_transport.c b/kernel/net/rds/rdma_transport.c index 6cd9d1dea..9c1fed81b 100644 --- a/kernel/net/rds/rdma_transport.c +++ b/kernel/net/rds/rdma_transport.c @@ -34,37 +34,10 @@ #include <rdma/rdma_cm.h> #include "rdma_transport.h" +#include "ib.h" static struct rdma_cm_id *rds_rdma_listen_id; -static char *rds_cm_event_strings[] = { -#define RDS_CM_EVENT_STRING(foo) \ - [RDMA_CM_EVENT_##foo] = __stringify(RDMA_CM_EVENT_##foo) - RDS_CM_EVENT_STRING(ADDR_RESOLVED), - RDS_CM_EVENT_STRING(ADDR_ERROR), - RDS_CM_EVENT_STRING(ROUTE_RESOLVED), - RDS_CM_EVENT_STRING(ROUTE_ERROR), - RDS_CM_EVENT_STRING(CONNECT_REQUEST), - RDS_CM_EVENT_STRING(CONNECT_RESPONSE), - RDS_CM_EVENT_STRING(CONNECT_ERROR), - RDS_CM_EVENT_STRING(UNREACHABLE), - RDS_CM_EVENT_STRING(REJECTED), - RDS_CM_EVENT_STRING(ESTABLISHED), - RDS_CM_EVENT_STRING(DISCONNECTED), - RDS_CM_EVENT_STRING(DEVICE_REMOVAL), - RDS_CM_EVENT_STRING(MULTICAST_JOIN), - RDS_CM_EVENT_STRING(MULTICAST_ERROR), - RDS_CM_EVENT_STRING(ADDR_CHANGE), - RDS_CM_EVENT_STRING(TIMEWAIT_EXIT), -#undef RDS_CM_EVENT_STRING -}; - -static char *rds_cm_event_str(enum rdma_cm_event_type type) -{ - return rds_str_array(rds_cm_event_strings, - ARRAY_SIZE(rds_cm_event_strings), type); -}; - int rds_rdma_cm_event_handler(struct rdma_cm_id *cm_id, struct rdma_cm_event *event) { @@ -74,7 +47,7 @@ int rds_rdma_cm_event_handler(struct rdma_cm_id *cm_id, int ret = 0; rdsdebug("conn %p id %p handling event %u (%s)\n", conn, cm_id, - event->event, rds_cm_event_str(event->event)); + event->event, rdma_event_msg(event->event)); if (cm_id->device->node_type == RDMA_NODE_RNIC) trans = &rds_iw_transport; @@ -110,8 +83,18 @@ int rds_rdma_cm_event_handler(struct rdma_cm_id *cm_id, break; case RDMA_CM_EVENT_ROUTE_RESOLVED: - /* XXX worry about racing with listen acceptance */ - ret = trans->cm_initiate_connect(cm_id); + /* Connection could have been dropped so make sure the + * cm_id is valid before proceeding + */ + if (conn) { + struct rds_ib_connection *ibic; + + ibic = conn->c_transport_data; + if (ibic && ibic->i_cm_id == cm_id) + ret = trans->cm_initiate_connect(cm_id); + else + rds_conn_drop(conn); + } break; case RDMA_CM_EVENT_ESTABLISHED: @@ -139,7 +122,7 @@ int rds_rdma_cm_event_handler(struct rdma_cm_id *cm_id, default: /* things like device disconnect? */ printk(KERN_ERR "RDS: unknown event %u (%s)!\n", - event->event, rds_cm_event_str(event->event)); + event->event, rdma_event_msg(event->event)); break; } @@ -148,7 +131,7 @@ out: mutex_unlock(&conn->c_cm_lock); rdsdebug("id %p event %u (%s) handling ret %d\n", cm_id, event->event, - rds_cm_event_str(event->event), ret); + rdma_event_msg(event->event), ret); return ret; } @@ -159,8 +142,8 @@ static int rds_rdma_listen_init(void) struct rdma_cm_id *cm_id; int ret; - cm_id = rdma_create_id(rds_rdma_cm_event_handler, NULL, RDMA_PS_TCP, - IB_QPT_RC); + cm_id = rdma_create_id(&init_net, rds_rdma_cm_event_handler, NULL, + RDMA_PS_TCP, IB_QPT_RC); if (IS_ERR(cm_id)) { ret = PTR_ERR(cm_id); printk(KERN_ERR "RDS/RDMA: failed to setup listener, " |