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IB/iser,isert: Create and use new shared header

소스 검색 
The iser RDMA_CM negotiation protocol is shared by
the initiator and the target, so have a shared header
for the defines and structure. Move relevant items from
the initiator and target headers.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Jenny Derzhavetz <jennyf@mellanox.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Sagi Grimberg
2015-12-09 14:12:03 +02:00
committed by Doug Ledford
부모 1caa70d8a7
커밋 d3cf81f9c8
7개의 변경된 파일과 106개의 추가작업 그리고 74개의 파일을 삭제
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39
drivers/infiniband/ulp/iser/iscsi_iser.h
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@@ -48,6 +48,7 @@
#include <scsi/scsi_transport_iscsi.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_device.h>
#include <scsi/iser.h>
#include <linux/interrupt.h>
#include <linux/wait.h>
@@ -153,40 +154,8 @@
#define ISER_SIGNAL_CMD_COUNT 32
#define ISER_VER 0x10
#define ISER_WSV 0x08
#define ISER_RSV 0x04
/**
* struct iser_hdr - iSER header
*
* @flags: flags support (zbva, remote_inv)
* @rsvd: reserved
* @write_stag: write rkey
* @write_va: write virtual address
* @reaf_stag: read rkey
* @read_va: read virtual address
*/
struct iser_hdr {
u8 flags;
u8 rsvd[3];
__be32 write_stag;
__be64 write_va;
__be32 read_stag;
__be64 read_va;
} __attribute__((packed));
#define ISER_ZBVA_NOT_SUPPORTED 0x80
#define ISER_SEND_W_INV_NOT_SUPPORTED 0x40
struct iser_cm_hdr {
u8 flags;
u8 rsvd[3];
} __packed;
/* Constant PDU lengths calculations */
#define ISER_HEADERS_LEN (sizeof(struct iser_hdr) + sizeof(struct iscsi_hdr))
#define ISER_HEADERS_LEN (sizeof(struct iser_ctrl) + sizeof(struct iscsi_hdr))
#define ISER_RECV_DATA_SEG_LEN 128
#define ISER_RX_PAYLOAD_SIZE (ISER_HEADERS_LEN + ISER_RECV_DATA_SEG_LEN)
@@ -283,7 +252,7 @@ enum iser_desc_type {
* @sig_attrs: Signature attributes
*/
struct iser_tx_desc {
struct iser_hdr iser_header;
struct iser_ctrl iser_header;
struct iscsi_hdr iscsi_header;
enum iser_desc_type type;
u64 dma_addr;
@@ -316,7 +285,7 @@ struct iser_tx_desc {
* @pad: for sense data TODO: Modify to maximum sense length supported
*/
struct iser_rx_desc {
struct iser_hdr iser_header;
struct iser_ctrl iser_header;
struct iscsi_hdr iscsi_header;
char data[ISER_RECV_DATA_SEG_LEN];
u64 dma_addr;