[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 <jayamohank@serverengines.com>
Acked-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
diff --git a/drivers/scsi/be2iscsi/be_iscsi.c b/drivers/scsi/be2iscsi/be_iscsi.c
index b23526c..f18e643 100644
--- a/drivers/scsi/be2iscsi/be_iscsi.c
+++ b/drivers/scsi/be2iscsi/be_iscsi.c
@@ -44,9 +44,10 @@
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 @@
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 be_ctrl_info ctrl;
};
+struct beiscsi_session {
+ struct pci_pool *bhs_pool;
+};
+
/**
* struct beiscsi_conn - iscsi connection structure
*/
@@ -338,6 +342,7 @@
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 @@
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 @@
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 @@
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 @@
*/
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 @@
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 @@
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);