static inline void
iscsi_buf_init_iov(struct iscsi_buf *ibuf, char *vbuf, int size)
{
- ibuf->sg.page = virt_to_page(vbuf);
- ibuf->sg.offset = offset_in_page(vbuf);
- ibuf->sg.length = size;
+ sg_init_one(&ibuf->sg, vbuf, size);
ibuf->sent = 0;
ibuf->use_sendmsg = 1;
}
static inline void
iscsi_buf_init_sg(struct iscsi_buf *ibuf, struct scatterlist *sg)
{
- ibuf->sg.page = sg->page;
- ibuf->sg.offset = sg->offset;
- ibuf->sg.length = sg->length;
+ sg_init_table(&ibuf->sg, 1);
+ sg_set_page(&ibuf->sg, sg_page(sg), sg->length, sg->offset);
/*
* Fastpath: sg element fits into single page
*/
- if (sg->length + sg->offset <= PAGE_SIZE && !PageSlab(sg->page))
+ if (sg->length + sg->offset <= PAGE_SIZE && !PageSlab(sg_page(sg)))
ibuf->use_sendmsg = 0;
else
ibuf->use_sendmsg = 1;
if (unlikely(!sc))
return;
- tcp_ctask->xmstate = XMSTATE_IDLE;
+ tcp_ctask->xmstate = XMSTATE_VALUE_IDLE;
tcp_ctask->r2t = NULL;
}
tcp_ctask->exp_datasn = r2tsn + 1;
__kfifo_put(tcp_ctask->r2tqueue, (void*)&r2t, sizeof(void*));
- tcp_ctask->xmstate |= XMSTATE_SOL_HDR_INIT;
+ set_bit(XMSTATE_BIT_SOL_HDR_INIT, &tcp_ctask->xmstate);
list_move_tail(&ctask->running, &conn->xmitqueue);
scsi_queue_work(session->host, &conn->xmitwork);
{
struct scatterlist temp;
- memcpy(&temp, sg, sizeof(struct scatterlist));
- temp.offset = offset;
- temp.length = length;
+ sg_init_table(&temp, 1);
+ sg_set_page(&temp, sg_page(sg), length, offset);
crypto_hash_update(desc, &temp, length);
}
for (i = tcp_ctask->sg_count; i < scsi_sg_count(sc); i++) {
char *dest;
- dest = kmap_atomic(sg[i].page, KM_SOFTIRQ0);
+ dest = kmap_atomic(sg_page(&sg[i]), KM_SOFTIRQ0);
rc = iscsi_ctask_copy(tcp_conn, ctask, dest + sg[i].offset,
sg[i].length, offset);
kunmap_atomic(dest, KM_SOFTIRQ0);
* slab case.
*/
if (buf->use_sendmsg)
- res = sock_no_sendpage(sk, buf->sg.page, offset, size, flags);
+ res = sock_no_sendpage(sk, sg_page(&buf->sg), offset, size, flags);
else
- res = tcp_conn->sendpage(sk, buf->sg.page, offset, size, flags);
+ res = tcp_conn->sendpage(sk, sg_page(&buf->sg), offset, size, flags);
if (res >= 0) {
conn->txdata_octets += res;
tcp_ctask->pad_count = ISCSI_PAD_LEN - tcp_ctask->pad_count;
debug_scsi("write padding %d bytes\n", tcp_ctask->pad_count);
- tcp_ctask->xmstate |= XMSTATE_W_PAD;
+ set_bit(XMSTATE_BIT_W_PAD, &tcp_ctask->xmstate);
}
/**
struct iscsi_tcp_cmd_task *tcp_ctask = ctask->dd_data;
BUG_ON(__kfifo_len(tcp_ctask->r2tqueue));
- tcp_ctask->xmstate = XMSTATE_CMD_HDR_INIT;
+ tcp_ctask->xmstate = 1 << XMSTATE_BIT_CMD_HDR_INIT;
}
/**
* xmit.
*
* Management xmit state machine consists of these states:
- * XMSTATE_IMM_HDR_INIT - calculate digest of PDU Header
- * XMSTATE_IMM_HDR - PDU Header xmit in progress
- * XMSTATE_IMM_DATA - PDU Data xmit in progress
- * XMSTATE_IDLE - management PDU is done
+ * XMSTATE_BIT_IMM_HDR_INIT - calculate digest of PDU Header
+ * XMSTATE_BIT_IMM_HDR - PDU Header xmit in progress
+ * XMSTATE_BIT_IMM_DATA - PDU Data xmit in progress
+ * XMSTATE_VALUE_IDLE - management PDU is done
**/
static int
iscsi_tcp_mtask_xmit(struct iscsi_conn *conn, struct iscsi_mgmt_task *mtask)
debug_scsi("mtask deq [cid %d state %x itt 0x%x]\n",
conn->id, tcp_mtask->xmstate, mtask->itt);
- if (tcp_mtask->xmstate & XMSTATE_IMM_HDR_INIT) {
+ if (test_bit(XMSTATE_BIT_IMM_HDR_INIT, &tcp_mtask->xmstate)) {
iscsi_buf_init_iov(&tcp_mtask->headbuf, (char*)mtask->hdr,
sizeof(struct iscsi_hdr));
if (mtask->data_count) {
- tcp_mtask->xmstate |= XMSTATE_IMM_DATA;
+ set_bit(XMSTATE_BIT_IMM_DATA, &tcp_mtask->xmstate);
iscsi_buf_init_iov(&tcp_mtask->sendbuf,
(char*)mtask->data,
mtask->data_count);
(u8*)tcp_mtask->hdrext);
tcp_mtask->sent = 0;
- tcp_mtask->xmstate &= ~XMSTATE_IMM_HDR_INIT;
- tcp_mtask->xmstate |= XMSTATE_IMM_HDR;
+ clear_bit(XMSTATE_BIT_IMM_HDR_INIT, &tcp_mtask->xmstate);
+ set_bit(XMSTATE_BIT_IMM_HDR, &tcp_mtask->xmstate);
}
- if (tcp_mtask->xmstate & XMSTATE_IMM_HDR) {
+ if (test_bit(XMSTATE_BIT_IMM_HDR, &tcp_mtask->xmstate)) {
rc = iscsi_sendhdr(conn, &tcp_mtask->headbuf,
mtask->data_count);
if (rc)
return rc;
- tcp_mtask->xmstate &= ~XMSTATE_IMM_HDR;
+ clear_bit(XMSTATE_BIT_IMM_HDR, &tcp_mtask->xmstate);
}
- if (tcp_mtask->xmstate & XMSTATE_IMM_DATA) {
+ if (test_and_clear_bit(XMSTATE_BIT_IMM_DATA, &tcp_mtask->xmstate)) {
BUG_ON(!mtask->data_count);
- tcp_mtask->xmstate &= ~XMSTATE_IMM_DATA;
/* FIXME: implement.
* Virtual buffer could be spreaded across multiple pages...
*/
rc = iscsi_sendpage(conn, &tcp_mtask->sendbuf,
&mtask->data_count, &tcp_mtask->sent);
if (rc) {
- tcp_mtask->xmstate |= XMSTATE_IMM_DATA;
+ set_bit(XMSTATE_BIT_IMM_DATA, &tcp_mtask->xmstate);
return rc;
}
} while (mtask->data_count);
}
- BUG_ON(tcp_mtask->xmstate != XMSTATE_IDLE);
+ BUG_ON(tcp_mtask->xmstate != XMSTATE_VALUE_IDLE);
if (mtask->hdr->itt == RESERVED_ITT) {
struct iscsi_session *session = conn->session;
struct iscsi_tcp_cmd_task *tcp_ctask = ctask->dd_data;
int rc = 0;
- if (tcp_ctask->xmstate & XMSTATE_CMD_HDR_INIT) {
+ if (test_bit(XMSTATE_BIT_CMD_HDR_INIT, &tcp_ctask->xmstate)) {
tcp_ctask->sent = 0;
tcp_ctask->sg_count = 0;
tcp_ctask->exp_datasn = 0;
if (conn->hdrdgst_en)
iscsi_hdr_digest(conn, &tcp_ctask->headbuf,
(u8*)tcp_ctask->hdrext);
- tcp_ctask->xmstate &= ~XMSTATE_CMD_HDR_INIT;
- tcp_ctask->xmstate |= XMSTATE_CMD_HDR_XMIT;
+ clear_bit(XMSTATE_BIT_CMD_HDR_INIT, &tcp_ctask->xmstate);
+ set_bit(XMSTATE_BIT_CMD_HDR_XMIT, &tcp_ctask->xmstate);
}
- if (tcp_ctask->xmstate & XMSTATE_CMD_HDR_XMIT) {
+ if (test_bit(XMSTATE_BIT_CMD_HDR_XMIT, &tcp_ctask->xmstate)) {
rc = iscsi_sendhdr(conn, &tcp_ctask->headbuf, ctask->imm_count);
if (rc)
return rc;
- tcp_ctask->xmstate &= ~XMSTATE_CMD_HDR_XMIT;
+ clear_bit(XMSTATE_BIT_CMD_HDR_XMIT, &tcp_ctask->xmstate);
if (sc->sc_data_direction != DMA_TO_DEVICE)
return 0;
if (ctask->imm_count) {
- tcp_ctask->xmstate |= XMSTATE_IMM_DATA;
+ set_bit(XMSTATE_BIT_IMM_DATA, &tcp_ctask->xmstate);
iscsi_set_padding(tcp_ctask, ctask->imm_count);
if (ctask->conn->datadgst_en) {
}
}
- if (ctask->unsol_count)
- tcp_ctask->xmstate |=
- XMSTATE_UNS_HDR | XMSTATE_UNS_INIT;
+ if (ctask->unsol_count) {
+ set_bit(XMSTATE_BIT_UNS_HDR, &tcp_ctask->xmstate);
+ set_bit(XMSTATE_BIT_UNS_INIT, &tcp_ctask->xmstate);
+ }
}
return rc;
}
struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
int sent = 0, rc;
- if (tcp_ctask->xmstate & XMSTATE_W_PAD) {
+ if (test_bit(XMSTATE_BIT_W_PAD, &tcp_ctask->xmstate)) {
iscsi_buf_init_iov(&tcp_ctask->sendbuf, (char*)&tcp_ctask->pad,
tcp_ctask->pad_count);
if (conn->datadgst_en)
crypto_hash_update(&tcp_conn->tx_hash,
&tcp_ctask->sendbuf.sg,
tcp_ctask->sendbuf.sg.length);
- } else if (!(tcp_ctask->xmstate & XMSTATE_W_RESEND_PAD))
+ } else if (!test_bit(XMSTATE_BIT_W_RESEND_PAD, &tcp_ctask->xmstate))
return 0;
- tcp_ctask->xmstate &= ~XMSTATE_W_PAD;
- tcp_ctask->xmstate &= ~XMSTATE_W_RESEND_PAD;
+ clear_bit(XMSTATE_BIT_W_PAD, &tcp_ctask->xmstate);
+ clear_bit(XMSTATE_BIT_W_RESEND_PAD, &tcp_ctask->xmstate);
debug_scsi("sending %d pad bytes for itt 0x%x\n",
tcp_ctask->pad_count, ctask->itt);
rc = iscsi_sendpage(conn, &tcp_ctask->sendbuf, &tcp_ctask->pad_count,
&sent);
if (rc) {
debug_scsi("padding send failed %d\n", rc);
- tcp_ctask->xmstate |= XMSTATE_W_RESEND_PAD;
+ set_bit(XMSTATE_BIT_W_RESEND_PAD, &tcp_ctask->xmstate);
}
return rc;
}
tcp_ctask = ctask->dd_data;
tcp_conn = conn->dd_data;
- if (!(tcp_ctask->xmstate & XMSTATE_W_RESEND_DATA_DIGEST)) {
+ if (!test_bit(XMSTATE_BIT_W_RESEND_DATA_DIGEST, &tcp_ctask->xmstate)) {
crypto_hash_final(&tcp_conn->tx_hash, (u8*)digest);
iscsi_buf_init_iov(buf, (char*)digest, 4);
}
- tcp_ctask->xmstate &= ~XMSTATE_W_RESEND_DATA_DIGEST;
+ clear_bit(XMSTATE_BIT_W_RESEND_DATA_DIGEST, &tcp_ctask->xmstate);
rc = iscsi_sendpage(conn, buf, &tcp_ctask->digest_count, &sent);
if (!rc)
else {
debug_scsi("sending digest 0x%x failed for itt 0x%x!\n",
*digest, ctask->itt);
- tcp_ctask->xmstate |= XMSTATE_W_RESEND_DATA_DIGEST;
+ set_bit(XMSTATE_BIT_W_RESEND_DATA_DIGEST, &tcp_ctask->xmstate);
}
return rc;
}
struct iscsi_data_task *dtask;
int rc;
- tcp_ctask->xmstate |= XMSTATE_UNS_DATA;
- if (tcp_ctask->xmstate & XMSTATE_UNS_INIT) {
+ set_bit(XMSTATE_BIT_UNS_DATA, &tcp_ctask->xmstate);
+ if (test_bit(XMSTATE_BIT_UNS_INIT, &tcp_ctask->xmstate)) {
dtask = &tcp_ctask->unsol_dtask;
iscsi_prep_unsolicit_data_pdu(ctask, &dtask->hdr);
iscsi_hdr_digest(conn, &tcp_ctask->headbuf,
(u8*)dtask->hdrext);
- tcp_ctask->xmstate &= ~XMSTATE_UNS_INIT;
+ clear_bit(XMSTATE_BIT_UNS_INIT, &tcp_ctask->xmstate);
iscsi_set_padding(tcp_ctask, ctask->data_count);
}
rc = iscsi_sendhdr(conn, &tcp_ctask->headbuf, ctask->data_count);
if (rc) {
- tcp_ctask->xmstate &= ~XMSTATE_UNS_DATA;
- tcp_ctask->xmstate |= XMSTATE_UNS_HDR;
+ clear_bit(XMSTATE_BIT_UNS_DATA, &tcp_ctask->xmstate);
+ set_bit(XMSTATE_BIT_UNS_HDR, &tcp_ctask->xmstate);
return rc;
}
struct iscsi_tcp_cmd_task *tcp_ctask = ctask->dd_data;
int rc;
- if (tcp_ctask->xmstate & XMSTATE_UNS_HDR) {
+ if (test_and_clear_bit(XMSTATE_BIT_UNS_HDR, &tcp_ctask->xmstate)) {
BUG_ON(!ctask->unsol_count);
- tcp_ctask->xmstate &= ~XMSTATE_UNS_HDR;
send_hdr:
rc = iscsi_send_unsol_hdr(conn, ctask);
if (rc)
return rc;
}
- if (tcp_ctask->xmstate & XMSTATE_UNS_DATA) {
+ if (test_bit(XMSTATE_BIT_UNS_DATA, &tcp_ctask->xmstate)) {
struct iscsi_data_task *dtask = &tcp_ctask->unsol_dtask;
int start = tcp_ctask->sent;
ctask->unsol_count -= tcp_ctask->sent - start;
if (rc)
return rc;
- tcp_ctask->xmstate &= ~XMSTATE_UNS_DATA;
+ clear_bit(XMSTATE_BIT_UNS_DATA, &tcp_ctask->xmstate);
/*
* Done with the Data-Out. Next, check if we need
* to send another unsolicited Data-Out.
*/
if (ctask->unsol_count) {
debug_scsi("sending more uns\n");
- tcp_ctask->xmstate |= XMSTATE_UNS_INIT;
+ set_bit(XMSTATE_BIT_UNS_INIT, &tcp_ctask->xmstate);
goto send_hdr;
}
}
struct iscsi_data_task *dtask;
int left, rc;
- if (tcp_ctask->xmstate & XMSTATE_SOL_HDR_INIT) {
+ if (test_bit(XMSTATE_BIT_SOL_HDR_INIT, &tcp_ctask->xmstate)) {
if (!tcp_ctask->r2t) {
spin_lock_bh(&session->lock);
__kfifo_get(tcp_ctask->r2tqueue, (void*)&tcp_ctask->r2t,
if (conn->hdrdgst_en)
iscsi_hdr_digest(conn, &r2t->headbuf,
(u8*)dtask->hdrext);
- tcp_ctask->xmstate &= ~XMSTATE_SOL_HDR_INIT;
- tcp_ctask->xmstate |= XMSTATE_SOL_HDR;
+ clear_bit(XMSTATE_BIT_SOL_HDR_INIT, &tcp_ctask->xmstate);
+ set_bit(XMSTATE_BIT_SOL_HDR, &tcp_ctask->xmstate);
}
- if (tcp_ctask->xmstate & XMSTATE_SOL_HDR) {
+ if (test_bit(XMSTATE_BIT_SOL_HDR, &tcp_ctask->xmstate)) {
r2t = tcp_ctask->r2t;
dtask = &r2t->dtask;
rc = iscsi_sendhdr(conn, &r2t->headbuf, r2t->data_count);
if (rc)
return rc;
- tcp_ctask->xmstate &= ~XMSTATE_SOL_HDR;
- tcp_ctask->xmstate |= XMSTATE_SOL_DATA;
+ clear_bit(XMSTATE_BIT_SOL_HDR, &tcp_ctask->xmstate);
+ set_bit(XMSTATE_BIT_SOL_DATA, &tcp_ctask->xmstate);
if (conn->datadgst_en) {
iscsi_data_digest_init(conn->dd_data, tcp_ctask);
r2t->sent);
}
- if (tcp_ctask->xmstate & XMSTATE_SOL_DATA) {
+ if (test_bit(XMSTATE_BIT_SOL_DATA, &tcp_ctask->xmstate)) {
r2t = tcp_ctask->r2t;
dtask = &r2t->dtask;
&dtask->digestbuf, &dtask->digest);
if (rc)
return rc;
- tcp_ctask->xmstate &= ~XMSTATE_SOL_DATA;
+ clear_bit(XMSTATE_BIT_SOL_DATA, &tcp_ctask->xmstate);
/*
* Done with this Data-Out. Next, check if we have
* xmit stages.
*
*iscsi_send_cmd_hdr()
- * XMSTATE_CMD_HDR_INIT - prepare Header and Data buffers Calculate
- * Header Digest
- * XMSTATE_CMD_HDR_XMIT - Transmit header in progress
+ * XMSTATE_BIT_CMD_HDR_INIT - prepare Header and Data buffers Calculate
+ * Header Digest
+ * XMSTATE_BIT_CMD_HDR_XMIT - Transmit header in progress
*
*iscsi_send_padding
- * XMSTATE_W_PAD - Prepare and send pading
- * XMSTATE_W_RESEND_PAD - retry send pading
+ * XMSTATE_BIT_W_PAD - Prepare and send pading
+ * XMSTATE_BIT_W_RESEND_PAD - retry send pading
*
*iscsi_send_digest
- * XMSTATE_W_RESEND_DATA_DIGEST - Finalize and send Data Digest
- * XMSTATE_W_RESEND_DATA_DIGEST - retry sending digest
+ * XMSTATE_BIT_W_RESEND_DATA_DIGEST - Finalize and send Data Digest
+ * XMSTATE_BIT_W_RESEND_DATA_DIGEST - retry sending digest
*
*iscsi_send_unsol_hdr
- * XMSTATE_UNS_INIT - prepare un-solicit data header and digest
- * XMSTATE_UNS_HDR - send un-solicit header
+ * XMSTATE_BIT_UNS_INIT - prepare un-solicit data header and digest
+ * XMSTATE_BIT_UNS_HDR - send un-solicit header
*
*iscsi_send_unsol_pdu
- * XMSTATE_UNS_DATA - send un-solicit data in progress
+ * XMSTATE_BIT_UNS_DATA - send un-solicit data in progress
*
*iscsi_send_sol_pdu
- * XMSTATE_SOL_HDR_INIT - solicit data header and digest initialize
- * XMSTATE_SOL_HDR - send solicit header
- * XMSTATE_SOL_DATA - send solicit data
+ * XMSTATE_BIT_SOL_HDR_INIT - solicit data header and digest initialize
+ * XMSTATE_BIT_SOL_HDR - send solicit header
+ * XMSTATE_BIT_SOL_DATA - send solicit data
*
*iscsi_tcp_ctask_xmit
- * XMSTATE_IMM_DATA - xmit managment data (??)
+ * XMSTATE_BIT_IMM_DATA - xmit managment data (??)
**/
static int
iscsi_tcp_ctask_xmit(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
if (ctask->sc->sc_data_direction != DMA_TO_DEVICE)
return 0;
- if (tcp_ctask->xmstate & XMSTATE_IMM_DATA) {
+ if (test_bit(XMSTATE_BIT_IMM_DATA, &tcp_ctask->xmstate)) {
rc = iscsi_send_data(ctask, &tcp_ctask->sendbuf, &tcp_ctask->sg,
&tcp_ctask->sent, &ctask->imm_count,
&tcp_ctask->immbuf, &tcp_ctask->immdigest);
if (rc)
return rc;
- tcp_ctask->xmstate &= ~XMSTATE_IMM_DATA;
+ clear_bit(XMSTATE_BIT_IMM_DATA, &tcp_ctask->xmstate);
}
rc = iscsi_send_unsol_pdu(conn, ctask);
iscsi_tcp_mgmt_init(struct iscsi_conn *conn, struct iscsi_mgmt_task *mtask)
{
struct iscsi_tcp_mgmt_task *tcp_mtask = mtask->dd_data;
- tcp_mtask->xmstate = XMSTATE_IMM_HDR_INIT;
+ tcp_mtask->xmstate = 1 << XMSTATE_BIT_IMM_HDR_INIT;
}
static int
git.samba.org / sfrench / cifs-2.6.git / blobdiff