struct iscsi_session *session = conn->session;
struct scsi_cmnd *sc = ctask->sc;
int datasn = be32_to_cpu(rhdr->datasn);
+ unsigned total_in_length = scsi_in(sc)->length;
iscsi_update_cmdsn(session, (struct iscsi_nopin*)rhdr);
if (tcp_conn->in.datalen == 0)
tcp_ctask->exp_datasn++;
tcp_ctask->data_offset = be32_to_cpu(rhdr->offset);
- if (tcp_ctask->data_offset + tcp_conn->in.datalen > scsi_bufflen(sc)) {
+ if (tcp_ctask->data_offset + tcp_conn->in.datalen > total_in_length) {
debug_tcp("%s: data_offset(%d) + data_len(%d) > total_length_in(%d)\n",
__FUNCTION__, tcp_ctask->data_offset,
- tcp_conn->in.datalen, scsi_bufflen(sc));
+ tcp_conn->in.datalen, total_in_length);
return ISCSI_ERR_DATA_OFFSET;
}
if (res_count > 0 &&
(rhdr->flags & ISCSI_FLAG_CMD_OVERFLOW ||
- res_count <= scsi_bufflen(sc)))
- scsi_set_resid(sc, res_count);
+ res_count <= total_in_length))
+ scsi_in(sc)->resid = res_count;
else
sc->result = (DID_BAD_TARGET << 16) |
rhdr->cmd_status;
int rc;
if (tcp_conn->in.datalen) {
- printk(KERN_ERR "iscsi_tcp: invalid R2t with datalen %d\n",
- tcp_conn->in.datalen);
+ iscsi_conn_printk(KERN_ERR, conn,
+ "invalid R2t with datalen %d\n",
+ tcp_conn->in.datalen);
return ISCSI_ERR_DATALEN;
}
}
/* fill-in new R2T associated with the task */
- spin_lock(&session->lock);
iscsi_update_cmdsn(session, (struct iscsi_nopin*)rhdr);
if (!ctask->sc || session->state != ISCSI_STATE_LOGGED_IN) {
- printk(KERN_INFO "iscsi_tcp: dropping R2T itt %d in "
- "recovery...\n", ctask->itt);
- spin_unlock(&session->lock);
+ iscsi_conn_printk(KERN_INFO, conn,
+ "dropping R2T itt %d in recovery.\n",
+ ctask->itt);
return 0;
}
r2t->exp_statsn = rhdr->statsn;
r2t->data_length = be32_to_cpu(rhdr->data_length);
if (r2t->data_length == 0) {
- printk(KERN_ERR "iscsi_tcp: invalid R2T with zero data len\n");
+ iscsi_conn_printk(KERN_ERR, conn,
+ "invalid R2T with zero data len\n");
__kfifo_put(tcp_ctask->r2tpool.queue, (void*)&r2t,
sizeof(void*));
- spin_unlock(&session->lock);
return ISCSI_ERR_DATALEN;
}
r2t->data_length, session->max_burst);
r2t->data_offset = be32_to_cpu(rhdr->data_offset);
- if (r2t->data_offset + r2t->data_length > scsi_bufflen(ctask->sc)) {
- printk(KERN_ERR "iscsi_tcp: invalid R2T with data len %u at "
- "offset %u and total length %d\n", r2t->data_length,
- r2t->data_offset, scsi_bufflen(ctask->sc));
+ if (r2t->data_offset + r2t->data_length > scsi_out(ctask->sc)->length) {
+ iscsi_conn_printk(KERN_ERR, conn,
+ "invalid R2T with data len %u at offset %u "
+ "and total length %d\n", r2t->data_length,
+ r2t->data_offset, scsi_out(ctask->sc)->length);
__kfifo_put(tcp_ctask->r2tpool.queue, (void*)&r2t,
sizeof(void*));
- spin_unlock(&session->lock);
return ISCSI_ERR_DATALEN;
}
conn->r2t_pdus_cnt++;
iscsi_requeue_ctask(ctask);
- spin_unlock(&session->lock);
-
return 0;
}
/* verify PDU length */
tcp_conn->in.datalen = ntoh24(hdr->dlength);
if (tcp_conn->in.datalen > conn->max_recv_dlength) {
- printk(KERN_ERR "iscsi_tcp: datalen %d > %d\n",
- tcp_conn->in.datalen, conn->max_recv_dlength);
+ iscsi_conn_printk(KERN_ERR, conn,
+ "iscsi_tcp: datalen %d > %d\n",
+ tcp_conn->in.datalen, conn->max_recv_dlength);
return ISCSI_ERR_DATALEN;
}
switch(opcode) {
case ISCSI_OP_SCSI_DATA_IN:
ctask = session->cmds[itt];
+ spin_lock(&conn->session->lock);
rc = iscsi_data_rsp(conn, ctask);
+ spin_unlock(&conn->session->lock);
if (rc)
return rc;
if (tcp_conn->in.datalen) {
struct iscsi_tcp_cmd_task *tcp_ctask = ctask->dd_data;
struct hash_desc *rx_hash = NULL;
+ struct scsi_data_buffer *sdb = scsi_in(ctask->sc);
/*
* Setup copy of Data-In into the Scsi_Cmnd
tcp_ctask->data_offset,
tcp_conn->in.datalen);
return iscsi_segment_seek_sg(&tcp_conn->in.segment,
- scsi_sglist(ctask->sc),
- scsi_sg_count(ctask->sc),
+ sdb->table.sgl,
+ sdb->table.nents,
tcp_ctask->data_offset,
tcp_conn->in.datalen,
iscsi_tcp_process_data_in,
ctask = session->cmds[itt];
if (ahslen)
rc = ISCSI_ERR_AHSLEN;
- else if (ctask->sc->sc_data_direction == DMA_TO_DEVICE)
+ else if (ctask->sc->sc_data_direction == DMA_TO_DEVICE) {
+ spin_lock(&session->lock);
rc = iscsi_r2t_rsp(conn, ctask);
- else
+ spin_unlock(&session->lock);
+ } else
rc = ISCSI_ERR_PROTO;
break;
case ISCSI_OP_LOGIN_RSP:
* For now we fail until we find a vendor that needs it
*/
if (ISCSI_DEF_MAX_RECV_SEG_LEN < tcp_conn->in.datalen) {
- printk(KERN_ERR "iscsi_tcp: received buffer of len %u "
- "but conn buffer is only %u (opcode %0x)\n",
- tcp_conn->in.datalen,
- ISCSI_DEF_MAX_RECV_SEG_LEN, opcode);
+ iscsi_conn_printk(KERN_ERR, conn,
+ "iscsi_tcp: received buffer of "
+ "len %u but conn buffer is only %u "
+ "(opcode %0x)\n",
+ tcp_conn->in.datalen,
+ ISCSI_DEF_MAX_RECV_SEG_LEN, opcode);
rc = ISCSI_ERR_PROTO;
break;
}
return 0;
/* If we have immediate data, attach a payload */
- err = iscsi_tcp_send_data_prep(conn, scsi_sglist(sc), scsi_sg_count(sc),
+ err = iscsi_tcp_send_data_prep(conn, scsi_out(sc)->table.sgl,
+ scsi_out(sc)->table.nents,
0, ctask->imm_count);
if (err)
return err;
{
struct iscsi_tcp_cmd_task *tcp_ctask = ctask->dd_data;
struct scsi_cmnd *sc = ctask->sc;
+ struct scsi_data_buffer *sdb = scsi_out(sc);
int rc = 0;
flush:
ctask->itt, tcp_ctask->sent, ctask->data_count);
iscsi_tcp_send_hdr_prep(conn, hdr, sizeof(*hdr));
- rc = iscsi_tcp_send_data_prep(conn, scsi_sglist(sc),
- scsi_sg_count(sc),
- tcp_ctask->sent,
+ rc = iscsi_tcp_send_data_prep(conn, sdb->table.sgl,
+ sdb->table.nents, tcp_ctask->sent,
ctask->data_count);
if (rc)
goto fail;
iscsi_tcp_send_hdr_prep(conn, &r2t->dtask.hdr,
sizeof(struct iscsi_hdr));
- rc = iscsi_tcp_send_data_prep(conn, scsi_sglist(sc),
- scsi_sg_count(sc),
+ rc = iscsi_tcp_send_data_prep(conn, sdb->table.sgl,
+ sdb->table.nents,
r2t->data_offset + r2t->sent,
r2t->data_count);
if (rc)
tcp_conn->tx_hash.tfm = crypto_alloc_hash("crc32c", 0,
CRYPTO_ALG_ASYNC);
tcp_conn->tx_hash.flags = 0;
- if (IS_ERR(tcp_conn->tx_hash.tfm)) {
- printk(KERN_ERR "Could not create connection due to crc32c "
- "loading error %ld. Make sure the crc32c module is "
- "built as a module or into the kernel\n",
- PTR_ERR(tcp_conn->tx_hash.tfm));
+ if (IS_ERR(tcp_conn->tx_hash.tfm))
goto free_tcp_conn;
- }
tcp_conn->rx_hash.tfm = crypto_alloc_hash("crc32c", 0,
CRYPTO_ALG_ASYNC);
tcp_conn->rx_hash.flags = 0;
- if (IS_ERR(tcp_conn->rx_hash.tfm)) {
- printk(KERN_ERR "Could not create connection due to crc32c "
- "loading error %ld. Make sure the crc32c module is "
- "built as a module or into the kernel\n",
- PTR_ERR(tcp_conn->rx_hash.tfm));
+ if (IS_ERR(tcp_conn->rx_hash.tfm))
goto free_tx_tfm;
- }
return cls_conn;
free_tx_tfm:
crypto_free_hash(tcp_conn->tx_hash.tfm);
free_tcp_conn:
+ iscsi_conn_printk(KERN_ERR, conn,
+ "Could not create connection due to crc32c "
+ "loading error. Make sure the crc32c "
+ "module is built as a module or into the "
+ "kernel\n");
kfree(tcp_conn);
tcp_conn_alloc_fail:
iscsi_conn_teardown(cls_conn);
/* lookup for existing socket */
sock = sockfd_lookup((int)transport_eph, &err);
if (!sock) {
- printk(KERN_ERR "iscsi_tcp: sockfd_lookup failed %d\n", err);
+ iscsi_conn_printk(KERN_ERR, conn,
+ "sockfd_lookup failed %d\n", err);
return -EEXIST;
}
/*
break;
case ISCSI_PARAM_MAX_R2T:
sscanf(buf, "%d", &value);
- if (session->max_r2t == roundup_pow_of_two(value))
+ if (value <= 0 || !is_power_of_2(value))
+ return -EINVAL;
+ if (session->max_r2t == value)
break;
iscsi_r2tpool_free(session);
iscsi_set_param(cls_conn, param, buf, buflen);
- if (session->max_r2t & (session->max_r2t - 1))
- session->max_r2t = roundup_pow_of_two(session->max_r2t);
if (iscsi_r2tpool_alloc(session))
return -ENOMEM;
break;
.eh_device_reset_handler= iscsi_eh_device_reset,
.eh_host_reset_handler = iscsi_eh_host_reset,
.use_clustering = DISABLE_CLUSTERING,
- .use_sg_chaining = ENABLE_SG_CHAINING,
.slave_configure = iscsi_tcp_slave_configure,
.proc_name = "iscsi_tcp",
.this_id = -1,
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff