From b8b9e1b8128d8854cf55740f9ceba3010143520d Mon Sep 17 00:00:00 2001 From: Jayamohan Kallickal Date: Tue, 22 Sep 2009 08:21:22 +0530 Subject: [PATCH] [SCSI] libiscsi: iscsi_session_setup to allow for private space This patch contains changes that allow iscsi_session_setup to allocate private space for LLD's Signed-off-by: Jayamohan Kallickal Acked-by: Mike Christie Signed-off-by: James Bottomley --- drivers/infiniband/ulp/iser/iscsi_iser.c | 2 +- drivers/scsi/be2iscsi/be_iscsi.c | 6 ++++-- drivers/scsi/be2iscsi/be_main.h | 5 +++++ drivers/scsi/bnx2i/bnx2i_iscsi.c | 2 +- drivers/scsi/cxgb3i/cxgb3i_iscsi.c | 2 +- drivers/scsi/iscsi_tcp.c | 2 +- drivers/scsi/libiscsi.c | 6 ++++-- include/scsi/libiscsi.h | 3 ++- 8 files changed, 19 insertions(+), 9 deletions(-) diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.c b/drivers/infiniband/ulp/iser/iscsi_iser.c index 0ba6ec8..add9188 100644 --- a/drivers/infiniband/ulp/iser/iscsi_iser.c +++ b/drivers/infiniband/ulp/iser/iscsi_iser.c @@ -426,7 +426,7 @@ iscsi_iser_session_create(struct iscsi_endpoint *ep, * because we preallocate so many resources */ cls_session = iscsi_session_setup(&iscsi_iser_transport, shost, - ISCSI_DEF_XMIT_CMDS_MAX, + ISCSI_DEF_XMIT_CMDS_MAX, 0, sizeof(struct iscsi_iser_task), initial_cmdsn, 0); if (!cls_session) diff --git a/drivers/scsi/be2iscsi/be_iscsi.c b/drivers/scsi/be2iscsi/be_iscsi.c index b23526c..f18e643f 100644 --- a/drivers/scsi/be2iscsi/be_iscsi.c +++ b/drivers/scsi/be2iscsi/be_iscsi.c @@ -44,9 +44,10 @@ struct iscsi_cls_session *beiscsi_session_create(struct iscsi_endpoint *ep, struct Scsi_Host *shost; struct beiscsi_endpoint *beiscsi_ep; struct iscsi_cls_session *cls_session; - struct iscsi_session *sess; struct beiscsi_hba *phba; struct iscsi_task *task; + struct iscsi_session *sess; + struct beiscsi_session *beiscsi_sess; struct beiscsi_io_task *io_task; unsigned int max_size, num_cmd; dma_addr_t bus_add; @@ -73,7 +74,8 @@ struct iscsi_cls_session *beiscsi_session_create(struct iscsi_endpoint *ep, cls_session = iscsi_session_setup(&beiscsi_iscsi_transport, shost, cmds_max, - sizeof(struct beiscsi_io_task), + sizeof(*beiscsi_sess), + sizeof(*io_task), initial_cmdsn, ISCSI_MAX_TARGET); if (!cls_session) return NULL; diff --git a/drivers/scsi/be2iscsi/be_main.h b/drivers/scsi/be2iscsi/be_main.h index 2520c39..387e363 100644 --- a/drivers/scsi/be2iscsi/be_main.h +++ b/drivers/scsi/be2iscsi/be_main.h @@ -327,6 +327,10 @@ struct beiscsi_hba { struct be_ctrl_info ctrl; }; +struct beiscsi_session { + struct pci_pool *bhs_pool; +}; + /** * struct beiscsi_conn - iscsi connection structure */ @@ -338,6 +342,7 @@ struct beiscsi_conn { struct beiscsi_endpoint *ep; unsigned short login_in_progress; struct sgl_handle *plogin_sgl_handle; + struct beiscsi_session *beiscsi_sess; }; /* This structure is used by the chip */ diff --git a/drivers/scsi/bnx2i/bnx2i_iscsi.c b/drivers/scsi/bnx2i/bnx2i_iscsi.c index 9a7ba71..cafb888 100644 --- a/drivers/scsi/bnx2i/bnx2i_iscsi.c +++ b/drivers/scsi/bnx2i/bnx2i_iscsi.c @@ -1243,7 +1243,7 @@ bnx2i_session_create(struct iscsi_endpoint *ep, cmds_max = BNX2I_SQ_WQES_MIN; cls_session = iscsi_session_setup(&bnx2i_iscsi_transport, shost, - cmds_max, sizeof(struct bnx2i_cmd), + cmds_max, 0, sizeof(struct bnx2i_cmd), initial_cmdsn, ISCSI_MAX_TARGET); if (!cls_session) return NULL; diff --git a/drivers/scsi/cxgb3i/cxgb3i_iscsi.c b/drivers/scsi/cxgb3i/cxgb3i_iscsi.c index c399f48..2631bdd 100644 --- a/drivers/scsi/cxgb3i/cxgb3i_iscsi.c +++ b/drivers/scsi/cxgb3i/cxgb3i_iscsi.c @@ -422,7 +422,7 @@ cxgb3i_session_create(struct iscsi_endpoint *ep, u16 cmds_max, u16 qdepth, BUG_ON(hba != iscsi_host_priv(shost)); cls_session = iscsi_session_setup(&cxgb3i_iscsi_transport, shost, - cmds_max, + cmds_max, 0, sizeof(struct iscsi_tcp_task) + sizeof(struct cxgb3i_task_data), initial_cmdsn, ISCSI_MAX_TARGET); diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c index 2b1b834..edc49ca 100644 --- a/drivers/scsi/iscsi_tcp.c +++ b/drivers/scsi/iscsi_tcp.c @@ -811,7 +811,7 @@ iscsi_sw_tcp_session_create(struct iscsi_endpoint *ep, uint16_t cmds_max, goto free_host; cls_session = iscsi_session_setup(&iscsi_sw_tcp_transport, shost, - cmds_max, + cmds_max, 0, sizeof(struct iscsi_tcp_task) + sizeof(struct iscsi_sw_tcp_hdrbuf), initial_cmdsn, 0); diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c index 8dc73c4..f1a4246 100644 --- a/drivers/scsi/libiscsi.c +++ b/drivers/scsi/libiscsi.c @@ -2436,7 +2436,7 @@ static void iscsi_host_dec_session_cnt(struct Scsi_Host *shost) */ struct iscsi_cls_session * iscsi_session_setup(struct iscsi_transport *iscsit, struct Scsi_Host *shost, - uint16_t cmds_max, int cmd_task_size, + uint16_t cmds_max, int dd_size, int cmd_task_size, uint32_t initial_cmdsn, unsigned int id) { struct iscsi_host *ihost = shost_priv(shost); @@ -2486,7 +2486,8 @@ iscsi_session_setup(struct iscsi_transport *iscsit, struct Scsi_Host *shost, scsi_cmds = total_cmds - ISCSI_MGMT_CMDS_MAX; cls_session = iscsi_alloc_session(shost, iscsit, - sizeof(struct iscsi_session)); + sizeof(struct iscsi_session) + + dd_size); if (!cls_session) goto dec_session_count; session = cls_session->dd_data; @@ -2503,6 +2504,7 @@ iscsi_session_setup(struct iscsi_transport *iscsit, struct Scsi_Host *shost, session->max_cmdsn = initial_cmdsn + 1; session->max_r2t = 1; session->tt = iscsit; + session->dd_data = cls_session->dd_data + sizeof(*session); mutex_init(&session->eh_mutex); spin_lock_init(&session->lock); diff --git a/include/scsi/libiscsi.h b/include/scsi/libiscsi.h index 887e57e..a72edd4 100644 --- a/include/scsi/libiscsi.h +++ b/include/scsi/libiscsi.h @@ -303,6 +303,7 @@ struct iscsi_session { int cmds_max; /* size of cmds array */ struct iscsi_task **cmds; /* Original Cmds arr */ struct iscsi_pool cmdpool; /* PDU's pool */ + void *dd_data; /* LLD private data */ }; enum { @@ -363,7 +364,7 @@ extern int iscsi_target_alloc(struct scsi_target *starget); */ extern struct iscsi_cls_session * iscsi_session_setup(struct iscsi_transport *, struct Scsi_Host *shost, - uint16_t, int, uint32_t, unsigned int); + uint16_t, int, int, uint32_t, unsigned int); extern void iscsi_session_teardown(struct iscsi_cls_session *); extern void iscsi_session_recovery_timedout(struct iscsi_cls_session *); extern int iscsi_set_param(struct iscsi_cls_conn *cls_conn, -- 2.7.4