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[SCSI] be2iscsi: Fix WRB_Q posting to support Dual Chute mode

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Configuration parameters return number of CID each chute supports. The WRB_Q
is created for the passed CID count. If both the Chute has iSCSI Protocol then
WRB_Q creation is in a round robin mechanism.

For BE-X family iSCSI protocol is loaded only on single chute.

Signed-off-by: John Soni Jose <sony.john-n@emulex.com>
Signed-off-by: Jayamohan Kallickal <jayamohan.kallickal@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Jayamohan Kallickal
2013-09-28 15:35:48 -07:00
committed by James Bottomley
parent 90622db316
commit 4eea99d55d
4 changed files with 89 additions and 25 deletions
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35
drivers/scsi/be2iscsi/be_main.h
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@@ -34,7 +34,6 @@
#include <scsi/libiscsi.h>
#include <scsi/scsi_transport_iscsi.h>
#include "be.h"
#define DRV_NAME "be2iscsi"
#define BUILD_STR "10.0.467.0"
#define BE_NAME "Emulex OneConnect" \
@@ -280,6 +279,25 @@ struct invalidate_command_table {
unsigned short cid;
} __packed;
#define BEISCSI_GET_ULP_FROM_CRI(phwi_ctrlr, cri) \
(phwi_ctrlr->wrb_context[cri].ulp_num)
struct hwi_wrb_context {
struct list_head wrb_handle_list;
struct list_head wrb_handle_drvr_list;
struct wrb_handle **pwrb_handle_base;
struct wrb_handle **pwrb_handle_basestd;
struct iscsi_wrb *plast_wrb;
unsigned short alloc_index;
unsigned short free_index;
unsigned short wrb_handles_available;
unsigned short cid;
uint8_t ulp_num; /* ULP to which CID binded */
uint16_t register_set;
uint16_t doorbell_format;
uint32_t doorbell_offset;
};
#include "be.h"
#define chip_be2(phba) (phba->generation == BE_GEN2)
#define chip_be3_r(phba) (phba->generation == BE_GEN3)
#define is_chip_be2_be3r(phba) (chip_be3_r(phba) || (chip_be2(phba)))
@@ -955,21 +973,6 @@ struct be_ring {
*/
};
#define BEISCSI_GET_ULP_FROM_CRI(phwi_ctrlr, cri) \
(phwi_ctrlr->wrb_context[cri].ulp_num)
struct hwi_wrb_context {
struct list_head wrb_handle_list;
struct list_head wrb_handle_drvr_list;
struct wrb_handle **pwrb_handle_base;
struct wrb_handle **pwrb_handle_basestd;
struct iscsi_wrb *plast_wrb;
unsigned short alloc_index;
unsigned short free_index;
unsigned short wrb_handles_available;
unsigned short cid;
uint8_t ulp_num; /* ULP to which CID binded */
};
struct hwi_controller {
struct list_head io_sgl_list;
struct list_head eh_sgl_list;