diff mbox series

[RFC,12/18] bnx2i: set scsi_host_template cmd_size

Message ID 1607828926-3658-13-git-send-email-michael.christie@oracle.com
State Superseded
Headers show
Series [RFC,01/18] libiscsi: fix iscsi_prep_scsi_cmd_pdu error handling | expand

Commit Message

Mike Christie Dec. 13, 2020, 3:08 a.m. UTC 
Use scsi_host_template cmd_size so the block/scsi-ml layers allocate the
iscsi structs for the driver.

Signed-off-by: Mike Christie <michael.christie@oracle.com>
---
 drivers/scsi/bnx2i/bnx2i_iscsi.c | 55 ++++++++++++++++++++++++++++++----------
 1 file changed, 41 insertions(+), 14 deletions(-)
diff mbox series

Patch

diff --git a/drivers/scsi/bnx2i/bnx2i_iscsi.c b/drivers/scsi/bnx2i/bnx2i_iscsi.c
index c49e7aa..975fb48 100644
--- a/drivers/scsi/bnx2i/bnx2i_iscsi.c
+++ b/drivers/scsi/bnx2i/bnx2i_iscsi.c
@@ -434,6 +434,31 @@  static void bnx2i_free_ep(struct iscsi_endpoint *ep)
 	iscsi_destroy_endpoint(ep);
 }
 
+static void __bnx2i_free_task_priv(struct Scsi_Host *shost,
+				   struct iscsi_task *task)
+{
+	struct bnx2i_hba *hba = iscsi_host_priv(shost);
+	struct bnx2i_cmd *cmd = task->dd_data;
+
+	if (!cmd->io_tbl.bd_tbl)
+		return;
+
+	dma_free_coherent(&hba->pcidev->dev,
+			  ISCSI_MAX_BDS_PER_CMD * sizeof(struct iscsi_bd),
+			  cmd->io_tbl.bd_tbl, cmd->io_tbl.bd_tbl_dma);
+}
+
+static void bnx2i_free_task_priv(struct iscsi_session *session,
+				 struct iscsi_task *task)
+{
+	__bnx2i_free_task_priv(session->host, task);
+}
+
+static int bnx2i_exit_cmd_priv(struct Scsi_Host *shost, struct scsi_cmnd *sc)
+{
+	__bnx2i_free_task_priv(shost, scsi_cmd_priv(sc));
+	return 0;
+}
 
 /**
  * bnx2i_alloc_bdt - allocates buffer descriptor (BD) table for the command
@@ -456,30 +481,28 @@  static int bnx2i_alloc_bdt(struct bnx2i_hba *hba, struct bnx2i_cmd *cmd)
 	return 0;
 }
 
-static void bnx2i_free_task_priv(struct iscsi_session *session,
-				 struct iscsi_task *task)
+static int __bnx2i_alloc_task_priv(struct Scsi_Host *shost,
+				   struct iscsi_task *task)
 {
-	struct bnx2i_hba *hba = iscsi_host_priv(session->host);
+	struct bnx2i_hba *hba = iscsi_host_priv(shost);
 	struct bnx2i_cmd *cmd = task->dd_data;
 
-	if (!cmd->io_tbl.bd_tbl)
-		return;
+	task->hdr = &cmd->hdr;
+	task->hdr_max = sizeof(struct iscsi_hdr);
 
-	dma_free_coherent(&hba->pcidev->dev,
-			  ISCSI_MAX_BDS_PER_CMD * sizeof(struct iscsi_bd),
-			  cmd->io_tbl.bd_tbl, cmd->io_tbl.bd_tbl_dma);
+	return bnx2i_alloc_bdt(hba, cmd);
 }
 
 static int bnx2i_alloc_task_priv(struct iscsi_session *session,
 				 struct iscsi_task *task)
 {
-	struct bnx2i_hba *hba = iscsi_host_priv(session->host);
-	struct bnx2i_cmd *cmd = task->dd_data;
-
-	task->hdr = &cmd->hdr;
-	task->hdr_max = sizeof(struct iscsi_hdr);
+	return __bnx2i_alloc_task_priv(session->host, task);
+}
 
-	return bnx2i_alloc_bdt(hba, cmd);
+static int bnx2i_init_cmd_priv(struct Scsi_Host *shost, struct scsi_cmnd *sc)
+{
+	iscsi_init_cmd_priv(shost, sc);
+	return __bnx2i_alloc_task_priv(shost, scsi_cmd_priv(sc));
 }
 
 /**
@@ -2204,6 +2227,10 @@  static umode_t bnx2i_attr_is_visible(int param_type, int param)
 	.sg_tablesize		= ISCSI_MAX_BDS_PER_CMD,
 	.shost_attrs		= bnx2i_dev_attributes,
 	.track_queue_depth	= 1,
+	.cmd_size		= sizeof(struct bnx2i_cmd) +
+				  sizeof(struct iscsi_task),
+	.init_cmd_priv		= bnx2i_init_cmd_priv,
+	.exit_cmd_priv		= bnx2i_exit_cmd_priv,
 };
 
 struct iscsi_transport bnx2i_iscsi_transport = {