Libiscsi: Introducing new functions for zero-copy write operations
iscsi-command: Adding new functions for all write operations (WRITE10,
WRITE12, WRITE16, WRITEOR, etc') for cases where the user wants
to pass his own io vectors (prevent memcpy).
new functions are called iscsi_write*_iov_task and looks
very similar to the iscsi_write*_task, only they get
scsi_iovec pointer and number of scsi_iovec as
parameters.
Change-Id: I719552b4cbda4f937975b5df7e77b4844e48cd16
Signed-off-by: Roy Shterman <roysh@mellanox.com>
This commit is contained in:
Roy Shterman
committed by
Ronnie Sahlberg
Ronnie Sahlberg
parent
2bba53d31d
commit
c85042bacb
325
lib/sync.c
325
lib/sync.c
@@ -866,6 +866,29 @@ iscsi_write10_sync(struct iscsi_context *iscsi, int lun, uint32_t lba,
|
||||
return state.task;
|
||||
}
|
||||
|
||||
struct scsi_task *
|
||||
iscsi_write10_iov_sync(struct iscsi_context *iscsi, int lun, uint32_t lba,
|
||||
unsigned char *data, uint32_t datalen, int blocksize,
|
||||
int wrprotect, int dpo, int fua, int fua_nv, int group_number,
|
||||
struct scsi_iovec *iov, int niov)
|
||||
{
|
||||
struct iscsi_sync_state state;
|
||||
|
||||
memset(&state, 0, sizeof(state));
|
||||
|
||||
if (iscsi_write10_iov_task(iscsi, lun, lba, data, datalen, blocksize,
|
||||
wrprotect, dpo, fua, fua_nv, group_number,
|
||||
scsi_sync_cb, &state, iov, niov) == NULL) {
|
||||
iscsi_set_error(iscsi,
|
||||
"Failed to send Write10 command");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
event_loop(iscsi, &state);
|
||||
|
||||
return state.task;
|
||||
}
|
||||
|
||||
struct scsi_task *
|
||||
iscsi_write12_sync(struct iscsi_context *iscsi, int lun, uint32_t lba,
|
||||
unsigned char *data, uint32_t datalen, int blocksize,
|
||||
@@ -889,6 +912,30 @@ iscsi_write12_sync(struct iscsi_context *iscsi, int lun, uint32_t lba,
|
||||
return state.task;
|
||||
}
|
||||
|
||||
struct scsi_task *
|
||||
iscsi_write12_iov_sync(struct iscsi_context *iscsi, int lun, uint32_t lba,
|
||||
unsigned char *data, uint32_t datalen, int blocksize,
|
||||
int wrprotect, int dpo, int fua, int fua_nv, int group_number,
|
||||
struct scsi_iovec *iov,int niov)
|
||||
{
|
||||
struct iscsi_sync_state state;
|
||||
|
||||
memset(&state, 0, sizeof(state));
|
||||
|
||||
if (iscsi_write12_iov_task(iscsi, lun, lba,
|
||||
data, datalen, blocksize, wrprotect,
|
||||
dpo, fua, fua_nv, group_number,
|
||||
scsi_sync_cb, &state, iov, niov) == NULL) {
|
||||
iscsi_set_error(iscsi,
|
||||
"Failed to send Write12 command");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
event_loop(iscsi, &state);
|
||||
|
||||
return state.task;
|
||||
}
|
||||
|
||||
struct scsi_task *
|
||||
iscsi_write16_sync(struct iscsi_context *iscsi, int lun, uint64_t lba,
|
||||
unsigned char *data, uint32_t datalen, int blocksize,
|
||||
@@ -912,6 +959,30 @@ iscsi_write16_sync(struct iscsi_context *iscsi, int lun, uint64_t lba,
|
||||
return state.task;
|
||||
}
|
||||
|
||||
struct scsi_task *
|
||||
iscsi_write16_iov_sync(struct iscsi_context *iscsi, int lun, uint64_t lba,
|
||||
unsigned char *data, uint32_t datalen, int blocksize,
|
||||
int wrprotect, int dpo, int fua, int fua_nv, int group_number,
|
||||
struct scsi_iovec *iov, int niov)
|
||||
{
|
||||
struct iscsi_sync_state state;
|
||||
|
||||
memset(&state, 0, sizeof(state));
|
||||
|
||||
if (iscsi_write16_iov_task(iscsi, lun, lba,
|
||||
data, datalen, blocksize, wrprotect,
|
||||
dpo, fua, fua_nv, group_number,
|
||||
scsi_sync_cb, &state, iov, niov) == NULL) {
|
||||
iscsi_set_error(iscsi,
|
||||
"Failed to send Write16 command");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
event_loop(iscsi, &state);
|
||||
|
||||
return state.task;
|
||||
}
|
||||
|
||||
struct scsi_task *
|
||||
iscsi_writeatomic16_sync(struct iscsi_context *iscsi, int lun, uint64_t lba,
|
||||
unsigned char *data, uint32_t datalen, int blocksize,
|
||||
@@ -935,6 +1006,30 @@ iscsi_writeatomic16_sync(struct iscsi_context *iscsi, int lun, uint64_t lba,
|
||||
return state.task;
|
||||
}
|
||||
|
||||
struct scsi_task *
|
||||
iscsi_writeatomic16_iov_sync(struct iscsi_context *iscsi, int lun, uint64_t lba,
|
||||
unsigned char *data, uint32_t datalen, int blocksize,
|
||||
int wrprotect, int dpo, int fua, int group_number,
|
||||
struct scsi_iovec *iov, int niov)
|
||||
{
|
||||
struct iscsi_sync_state state;
|
||||
|
||||
memset(&state, 0, sizeof(state));
|
||||
|
||||
if (iscsi_writeatomic16_iov_task(iscsi, lun, lba,
|
||||
data, datalen, blocksize, wrprotect,
|
||||
dpo, fua, group_number,
|
||||
scsi_sync_cb, &state, iov, niov) == NULL) {
|
||||
iscsi_set_error(iscsi,
|
||||
"Failed to send WriteAtomic16 command");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
event_loop(iscsi, &state);
|
||||
|
||||
return state.task;
|
||||
}
|
||||
|
||||
struct scsi_task *
|
||||
iscsi_orwrite_sync(struct iscsi_context *iscsi, int lun, uint64_t lba,
|
||||
unsigned char *data, uint32_t datalen, int blocksize,
|
||||
@@ -958,6 +1053,30 @@ iscsi_orwrite_sync(struct iscsi_context *iscsi, int lun, uint64_t lba,
|
||||
return state.task;
|
||||
}
|
||||
|
||||
struct scsi_task *
|
||||
iscsi_orwrite_iov_sync(struct iscsi_context *iscsi, int lun, uint64_t lba,
|
||||
unsigned char *data, uint32_t datalen, int blocksize,
|
||||
int wrprotect, int dpo, int fua, int fua_nv, int group_number,
|
||||
struct scsi_iovec *iov, int niov)
|
||||
{
|
||||
struct iscsi_sync_state state;
|
||||
|
||||
memset(&state, 0, sizeof(state));
|
||||
|
||||
if (iscsi_orwrite_iov_task(iscsi, lun, lba,
|
||||
data, datalen, blocksize, wrprotect,
|
||||
dpo, fua, fua_nv, group_number,
|
||||
scsi_sync_cb, &state, iov, niov) == NULL) {
|
||||
iscsi_set_error(iscsi,
|
||||
"Failed to send Orwrite command");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
event_loop(iscsi, &state);
|
||||
|
||||
return state.task;
|
||||
}
|
||||
|
||||
struct scsi_task *
|
||||
iscsi_compareandwrite_sync(struct iscsi_context *iscsi, int lun, uint64_t lba,
|
||||
unsigned char *data, uint32_t datalen, int blocksize,
|
||||
@@ -981,6 +1100,30 @@ iscsi_compareandwrite_sync(struct iscsi_context *iscsi, int lun, uint64_t lba,
|
||||
return state.task;
|
||||
}
|
||||
|
||||
struct scsi_task *
|
||||
iscsi_compareandwrite_iov_sync(struct iscsi_context *iscsi, int lun, uint64_t lba,
|
||||
unsigned char *data, uint32_t datalen, int blocksize,
|
||||
int wrprotect, int dpo, int fua, int fua_nv, int group_number,
|
||||
struct scsi_iovec *iov, int niov)
|
||||
{
|
||||
struct iscsi_sync_state state;
|
||||
|
||||
memset(&state, 0, sizeof(state));
|
||||
|
||||
if (iscsi_compareandwrite_iov_task(iscsi, lun, lba,
|
||||
data, datalen, blocksize, wrprotect,
|
||||
dpo, fua, fua_nv, group_number,
|
||||
scsi_sync_cb, &state, iov, niov) == NULL) {
|
||||
iscsi_set_error(iscsi,
|
||||
"Failed to send CompareAndWrite command");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
event_loop(iscsi, &state);
|
||||
|
||||
return state.task;
|
||||
}
|
||||
|
||||
struct scsi_task *
|
||||
iscsi_writeverify10_sync(struct iscsi_context *iscsi, int lun, uint32_t lba,
|
||||
unsigned char *data, uint32_t datalen, int blocksize,
|
||||
@@ -1003,6 +1146,29 @@ iscsi_writeverify10_sync(struct iscsi_context *iscsi, int lun, uint32_t lba,
|
||||
return state.task;
|
||||
}
|
||||
|
||||
struct scsi_task *
|
||||
iscsi_writeverify10_iov_sync(struct iscsi_context *iscsi, int lun, uint32_t lba,
|
||||
unsigned char *data, uint32_t datalen, int blocksize,
|
||||
int wrprotect, int dpo, int bytchk, int group_number,
|
||||
struct scsi_iovec *iov, int niov)
|
||||
{
|
||||
struct iscsi_sync_state state;
|
||||
|
||||
memset(&state, 0, sizeof(state));
|
||||
|
||||
if (iscsi_writeverify10_iov_task(iscsi, lun, lba, data, datalen, blocksize,
|
||||
wrprotect, dpo, bytchk, group_number,
|
||||
scsi_sync_cb, &state, iov, niov) == NULL) {
|
||||
iscsi_set_error(iscsi,
|
||||
"Failed to send Writeverify10 command");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
event_loop(iscsi, &state);
|
||||
|
||||
return state.task;
|
||||
}
|
||||
|
||||
struct scsi_task *
|
||||
iscsi_writeverify12_sync(struct iscsi_context *iscsi, int lun, uint32_t lba,
|
||||
unsigned char *data, uint32_t datalen, int blocksize,
|
||||
@@ -1026,6 +1192,30 @@ iscsi_writeverify12_sync(struct iscsi_context *iscsi, int lun, uint32_t lba,
|
||||
return state.task;
|
||||
}
|
||||
|
||||
struct scsi_task *
|
||||
iscsi_writeverify12_iov_sync(struct iscsi_context *iscsi, int lun, uint32_t lba,
|
||||
unsigned char *data, uint32_t datalen, int blocksize,
|
||||
int wrprotect, int dpo, int bytchk, int group_number,
|
||||
struct scsi_iovec *iov, int niov)
|
||||
{
|
||||
struct iscsi_sync_state state;
|
||||
|
||||
memset(&state, 0, sizeof(state));
|
||||
|
||||
if (iscsi_writeverify12_iov_task(iscsi, lun, lba,
|
||||
data, datalen, blocksize, wrprotect,
|
||||
dpo, bytchk, group_number,
|
||||
scsi_sync_cb, &state, iov, niov) == NULL) {
|
||||
iscsi_set_error(iscsi,
|
||||
"Failed to send Writeverify12 command");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
event_loop(iscsi, &state);
|
||||
|
||||
return state.task;
|
||||
}
|
||||
|
||||
struct scsi_task *
|
||||
iscsi_writeverify16_sync(struct iscsi_context *iscsi, int lun, uint64_t lba,
|
||||
unsigned char *data, uint32_t datalen, int blocksize,
|
||||
@@ -1049,6 +1239,30 @@ iscsi_writeverify16_sync(struct iscsi_context *iscsi, int lun, uint64_t lba,
|
||||
return state.task;
|
||||
}
|
||||
|
||||
struct scsi_task *
|
||||
iscsi_writeverify16_iov_sync(struct iscsi_context *iscsi, int lun, uint64_t lba,
|
||||
unsigned char *data, uint32_t datalen, int blocksize,
|
||||
int wrprotect, int dpo, int bytchk, int group_number,
|
||||
struct scsi_iovec *iov, int niov)
|
||||
{
|
||||
struct iscsi_sync_state state;
|
||||
|
||||
memset(&state, 0, sizeof(state));
|
||||
|
||||
if (iscsi_writeverify16_iov_task(iscsi, lun, lba,
|
||||
data, datalen, blocksize, wrprotect,
|
||||
dpo, bytchk, group_number,
|
||||
scsi_sync_cb, &state, iov, niov) == NULL) {
|
||||
iscsi_set_error(iscsi,
|
||||
"Failed to send Writeverify16 command");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
event_loop(iscsi, &state);
|
||||
|
||||
return state.task;
|
||||
}
|
||||
|
||||
struct scsi_task *
|
||||
iscsi_verify10_sync(struct iscsi_context *iscsi, int lun, unsigned char *data, uint32_t datalen, uint32_t lba,
|
||||
int vprotect, int dpo, int bytchk, int blocksize)
|
||||
@@ -1069,6 +1283,27 @@ iscsi_verify10_sync(struct iscsi_context *iscsi, int lun, unsigned char *data, u
|
||||
return state.task;
|
||||
}
|
||||
|
||||
struct scsi_task *
|
||||
iscsi_verify10_iov_sync(struct iscsi_context *iscsi, int lun, unsigned char *data, uint32_t datalen, uint32_t lba,
|
||||
int vprotect, int dpo, int bytchk, int blocksize, struct scsi_iovec *iov, int niov)
|
||||
{
|
||||
struct iscsi_sync_state state;
|
||||
|
||||
memset(&state, 0, sizeof(state));
|
||||
|
||||
if (iscsi_verify10_iov_task(iscsi, lun, data, datalen, lba, vprotect, dpo, bytchk, blocksize,
|
||||
scsi_sync_cb, &state, iov, niov) == NULL) {
|
||||
iscsi_set_error(iscsi,
|
||||
"Failed to send Verify10 command");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
event_loop(iscsi, &state);
|
||||
|
||||
return state.task;
|
||||
}
|
||||
|
||||
|
||||
struct scsi_task *
|
||||
iscsi_verify12_sync(struct iscsi_context *iscsi, int lun, unsigned char *data, uint32_t datalen, uint32_t lba,
|
||||
int vprotect, int dpo, int bytchk, int blocksize)
|
||||
@@ -1089,6 +1324,26 @@ iscsi_verify12_sync(struct iscsi_context *iscsi, int lun, unsigned char *data, u
|
||||
return state.task;
|
||||
}
|
||||
|
||||
struct scsi_task *
|
||||
iscsi_verify12_iov_sync(struct iscsi_context *iscsi, int lun, unsigned char *data, uint32_t datalen, uint32_t lba,
|
||||
int vprotect, int dpo, int bytchk, int blocksize, struct scsi_iovec *iov, int niov)
|
||||
{
|
||||
struct iscsi_sync_state state;
|
||||
|
||||
memset(&state, 0, sizeof(state));
|
||||
|
||||
if (iscsi_verify12_iov_task(iscsi, lun, data, datalen, lba, vprotect, dpo, bytchk, blocksize,
|
||||
scsi_sync_cb, &state, iov, niov) == NULL) {
|
||||
iscsi_set_error(iscsi,
|
||||
"Failed to send Verify12 command");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
event_loop(iscsi, &state);
|
||||
|
||||
return state.task;
|
||||
}
|
||||
|
||||
struct scsi_task *
|
||||
iscsi_verify16_sync(struct iscsi_context *iscsi, int lun, unsigned char *data, uint32_t datalen, uint64_t lba,
|
||||
int vprotect, int dpo, int bytchk, int blocksize)
|
||||
@@ -1109,6 +1364,26 @@ iscsi_verify16_sync(struct iscsi_context *iscsi, int lun, unsigned char *data, u
|
||||
return state.task;
|
||||
}
|
||||
|
||||
struct scsi_task *
|
||||
iscsi_verify16_iov_sync(struct iscsi_context *iscsi, int lun, unsigned char *data, uint32_t datalen, uint64_t lba,
|
||||
int vprotect, int dpo, int bytchk, int blocksize, struct scsi_iovec *iov, int niov)
|
||||
{
|
||||
struct iscsi_sync_state state;
|
||||
|
||||
memset(&state, 0, sizeof(state));
|
||||
|
||||
if (iscsi_verify16_iov_task(iscsi, lun, data, datalen, lba, vprotect, dpo, bytchk, blocksize,
|
||||
scsi_sync_cb, &state, iov, niov) == NULL) {
|
||||
iscsi_set_error(iscsi,
|
||||
"Failed to send Verify16 command");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
event_loop(iscsi, &state);
|
||||
|
||||
return state.task;
|
||||
}
|
||||
|
||||
struct scsi_task *
|
||||
iscsi_writesame10_sync(struct iscsi_context *iscsi, int lun, uint32_t lba,
|
||||
unsigned char *data, uint32_t datalen,
|
||||
@@ -1133,6 +1408,31 @@ iscsi_writesame10_sync(struct iscsi_context *iscsi, int lun, uint32_t lba,
|
||||
return state.task;
|
||||
}
|
||||
|
||||
struct scsi_task *
|
||||
iscsi_writesame10_iov_sync(struct iscsi_context *iscsi, int lun, uint32_t lba,
|
||||
unsigned char *data, uint32_t datalen,
|
||||
uint16_t num_blocks,
|
||||
int anchor, int unmap, int wrprotect, int group,
|
||||
struct scsi_iovec *iov, int niov)
|
||||
{
|
||||
struct iscsi_sync_state state;
|
||||
|
||||
memset(&state, 0, sizeof(state));
|
||||
|
||||
if (iscsi_writesame10_iov_task(iscsi, lun, lba,
|
||||
data, datalen, num_blocks,
|
||||
anchor, unmap, wrprotect, group,
|
||||
scsi_sync_cb, &state, iov, niov) == NULL) {
|
||||
iscsi_set_error(iscsi,
|
||||
"Failed to send WRITESAME10 command");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
event_loop(iscsi, &state);
|
||||
|
||||
return state.task;
|
||||
}
|
||||
|
||||
struct scsi_task *
|
||||
iscsi_writesame16_sync(struct iscsi_context *iscsi, int lun, uint64_t lba,
|
||||
unsigned char *data, uint32_t datalen,
|
||||
@@ -1157,6 +1457,31 @@ iscsi_writesame16_sync(struct iscsi_context *iscsi, int lun, uint64_t lba,
|
||||
return state.task;
|
||||
}
|
||||
|
||||
struct scsi_task *
|
||||
iscsi_writesame16_iov_sync(struct iscsi_context *iscsi, int lun, uint64_t lba,
|
||||
unsigned char *data, uint32_t datalen,
|
||||
uint32_t num_blocks,
|
||||
int anchor, int unmap, int wrprotect, int group,
|
||||
struct scsi_iovec *iov, int niov)
|
||||
{
|
||||
struct iscsi_sync_state state;
|
||||
|
||||
memset(&state, 0, sizeof(state));
|
||||
|
||||
if (iscsi_writesame16_iov_task(iscsi, lun, lba,
|
||||
data, datalen, num_blocks,
|
||||
anchor, unmap, wrprotect, group,
|
||||
scsi_sync_cb, &state, iov, niov) == NULL) {
|
||||
iscsi_set_error(iscsi,
|
||||
"Failed to send WRITESAME16 command");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
event_loop(iscsi, &state);
|
||||
|
||||
return state.task;
|
||||
}
|
||||
|
||||
struct scsi_task *
|
||||
iscsi_persistent_reserve_in_sync(struct iscsi_context *iscsi, int lun,
|
||||
int sa, uint16_t xferlen)
|
||||
|
||||
Reference in New Issue
Block a user