diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.c b/drivers/infiniband/ulp/iser/iscsi_iser.c index aeb58cae9a3fa4ca8aaec0a949f2cb72f4815aa9..efc121986c50f86af2c054aa2e7f3c53988bebc5 100644 --- a/drivers/infiniband/ulp/iser/iscsi_iser.c +++ b/drivers/infiniband/ulp/iser/iscsi_iser.c @@ -368,6 +368,7 @@ static struct iscsi_transport iscsi_iser_transport; static struct iscsi_cls_session * iscsi_iser_session_create(struct iscsi_transport *iscsit, struct scsi_transport_template *scsit, + struct Scsi_Host *shost, uint16_t cmds_max, uint16_t qdepth, uint32_t initial_cmdsn, uint32_t *hostno) { diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c index 72b9b2a0eba3248bbb4f5d65534c7a4df49fb580..81c421a7d47717f0341f1a638a02c285d7203a07 100644 --- a/drivers/scsi/iscsi_tcp.c +++ b/drivers/scsi/iscsi_tcp.c @@ -1871,8 +1871,9 @@ iscsi_conn_get_stats(struct iscsi_cls_conn *cls_conn, struct iscsi_stats *stats) static struct iscsi_cls_session * iscsi_tcp_session_create(struct iscsi_transport *iscsit, struct scsi_transport_template *scsit, - uint16_t cmds_max, uint16_t qdepth, - uint32_t initial_cmdsn, uint32_t *hostno) + struct Scsi_Host *shost, uint16_t cmds_max, + uint16_t qdepth, uint32_t initial_cmdsn, + uint32_t *hostno) { struct iscsi_cls_session *cls_session; struct iscsi_session *session; diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c index 65d1737eb664663735e1090133fcfd41a76824ce..2a6669d967cbbbfee99b06e14e4a9ffdda089d34 100644 --- a/drivers/scsi/scsi_transport_iscsi.c +++ b/drivers/scsi/scsi_transport_iscsi.c @@ -1017,21 +1017,38 @@ int iscsi_session_event(struct iscsi_cls_session *session, EXPORT_SYMBOL_GPL(iscsi_session_event); static int -iscsi_if_create_session(struct iscsi_internal *priv, struct iscsi_uevent *ev) +iscsi_if_create_session(struct iscsi_internal *priv, struct iscsi_uevent *ev, + uint32_t host_no, uint32_t initial_cmdsn, + uint16_t cmds_max, uint16_t queue_depth) { struct iscsi_transport *transport = priv->iscsi_transport; struct iscsi_cls_session *session; - uint32_t hostno; + struct Scsi_Host *shost = NULL; - session = transport->create_session(transport, &priv->t, - ev->u.c_session.cmds_max, - ev->u.c_session.queue_depth, - ev->u.c_session.initial_cmdsn, - &hostno); + /* + * Software iscsi allocates a host per session, but + * offload drivers (and possibly iser one day) allocate a host per + * hba/nic/rnic. Offload will match a host here, but software will + * return a new hostno after the create_session callback has returned. + */ + if (host_no != UINT_MAX) { + shost = scsi_host_lookup(host_no); + if (IS_ERR(shost)) { + printk(KERN_ERR "Could not find host no %u to " + "create session\n", host_no); + return -ENODEV; + } + } + + session = transport->create_session(transport, &priv->t, shost, + cmds_max, queue_depth, + initial_cmdsn, &host_no); + if (shost) + scsi_host_put(shost); if (!session) return -ENOMEM; - ev->r.c_session_ret.host_no = hostno; + ev->r.c_session_ret.host_no = host_no; ev->r.c_session_ret.sid = session->sid; return 0; } @@ -1190,6 +1207,7 @@ static int iscsi_if_recv_msg(struct sk_buff *skb, struct nlmsghdr *nlh) { int err = 0; + uint32_t host_no = UINT_MAX; struct iscsi_uevent *ev = NLMSG_DATA(nlh); struct iscsi_transport *transport = NULL; struct iscsi_internal *priv; @@ -1208,7 +1226,17 @@ iscsi_if_recv_msg(struct sk_buff *skb, struct nlmsghdr *nlh) switch (nlh->nlmsg_type) { case ISCSI_UEVENT_CREATE_SESSION: - err = iscsi_if_create_session(priv, ev); + err = iscsi_if_create_session(priv, ev, host_no, + ev->u.c_session.initial_cmdsn, + ev->u.c_session.cmds_max, + ev->u.c_session.queue_depth); + break; + case ISCSI_UEVENT_CREATE_BOUND_SESSION: + err = iscsi_if_create_session(priv, ev, + ev->u.c_bound_session.host_no, + ev->u.c_bound_session.initial_cmdsn, + ev->u.c_bound_session.cmds_max, + ev->u.c_bound_session.queue_depth); break; case ISCSI_UEVENT_DESTROY_SESSION: session = iscsi_session_lookup(ev->u.d_session.sid); diff --git a/include/scsi/iscsi_if.h b/include/scsi/iscsi_if.h index e19e5842316634699ed5d0763d2d14719e35f7b6..1883c85cd3ee54f0e4dcf697050c47642b0deaad 100644 --- a/include/scsi/iscsi_if.h +++ b/include/scsi/iscsi_if.h @@ -50,6 +50,7 @@ enum iscsi_uevent_e { ISCSI_UEVENT_TGT_DSCVR = UEVENT_BASE + 15, ISCSI_UEVENT_SET_HOST_PARAM = UEVENT_BASE + 16, ISCSI_UEVENT_UNBIND_SESSION = UEVENT_BASE + 17, + ISCSI_UEVENT_CREATE_BOUND_SESSION = UEVENT_BASE + 18, /* up events */ ISCSI_KEVENT_RECV_PDU = KEVENT_BASE + 1, @@ -78,6 +79,12 @@ struct iscsi_uevent { uint16_t cmds_max; uint16_t queue_depth; } c_session; + struct msg_create_bound_session { + uint32_t host_no; + uint32_t initial_cmdsn; + uint16_t cmds_max; + uint16_t queue_depth; + } c_bound_session; struct msg_destroy_session { uint32_t sid; } d_session; diff --git a/include/scsi/libiscsi.h b/include/scsi/libiscsi.h index cd3ca63d4fb1e43aa98d9b3bac64aca04033db18..f24cf0246739eea0779154ba08a2c2bb8f81edb0 100644 --- a/include/scsi/libiscsi.h +++ b/include/scsi/libiscsi.h @@ -24,6 +24,7 @@ #define LIBISCSI_H #include +#include #include #include #include diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h index aab1eae2ec4c4a6d310ab79cc214d6e627ec79ea..02a852000be7196292ea8c859b74ee1f4b3e3c0d 100644 --- a/include/scsi/scsi_transport_iscsi.h +++ b/include/scsi/scsi_transport_iscsi.h @@ -92,8 +92,8 @@ struct iscsi_transport { unsigned int max_conn; unsigned int max_cmd_len; struct iscsi_cls_session *(*create_session) (struct iscsi_transport *it, - struct scsi_transport_template *t, uint16_t, uint16_t, - uint32_t sn, uint32_t *hn); + struct scsi_transport_template *t, struct Scsi_Host *shost, + uint16_t cmds_max, uint16_t qdepth, uint32_t sn, uint32_t *hn); void (*destroy_session) (struct iscsi_cls_session *session); struct iscsi_cls_conn *(*create_conn) (struct iscsi_cls_session *sess, uint32_t cid);