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提交 5c75b7fc 编写于 作者: M Mike Christie 提交者： James Bottomley
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[SCSI] iscsi: convert iscsi_tcp to new set/get param fns 

Convert iscsi_tcp to new lib functions.
Signed-off-by: NMike Christie <michaelc@cs.wisc.edu>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
上级 358ff019
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Showing with 24 addition and 128 deletion
drivers/scsi/iscsi_tcp.c
浏览文件 @ 5c75b7fc
......@@ -2130,19 +2130,21 @@ iscsi_r2tpool_free(struct iscsi_session *session)
static int
iscsi_conn_set_param(struct iscsi_cls_conn *cls_conn, enum iscsi_param param,
uint32_t value)
char *buf, int buflen)
{
struct iscsi_conn *conn = cls_conn->dd_data;
struct iscsi_session *session = conn->session;
struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
int value;
switch(param) {
case ISCSI_PARAM_MAX_RECV_DLENGTH: {
char *saveptr = tcp_conn->data;
gfp_t flags = GFP_KERNEL;
sscanf(buf, "%d", &value);
if (tcp_conn->data_size >= value) {
conn->max_recv_dlength = value;
iscsi_set_param(cls_conn, param, buf, buflen);
break;
}
......@@ -2165,15 +2167,12 @@ iscsi_conn_set_param(struct iscsi_cls_conn *cls_conn, enum iscsi_param param,
else
free_pages((unsigned long)saveptr,
get_order(tcp_conn->data_size));
conn->max_recv_dlength = value;
iscsi_set_param(cls_conn, param, buf, buflen);
tcp_conn->data_size = value;
}
break;
case ISCSI_PARAM_MAX_XMIT_DLENGTH:
conn->max_xmit_dlength = value;
break;
}
case ISCSI_PARAM_HDRDGST_EN:
conn->hdrdgst_en = value;
iscsi_set_param(cls_conn, param, buf, buflen);
tcp_conn->hdr_size = sizeof(struct iscsi_hdr);
if (conn->hdrdgst_en) {
tcp_conn->hdr_size += sizeof(__u32);
......@@ -2197,7 +2196,7 @@ iscsi_conn_set_param(struct iscsi_cls_conn *cls_conn, enum iscsi_param param,
}
break;
case ISCSI_PARAM_DATADGST_EN:
conn->datadgst_en = value;
iscsi_set_param(cls_conn, param, buf, buflen);
if (conn->datadgst_en) {
if (!tcp_conn->data_tx_tfm)
tcp_conn->data_tx_tfm =
......@@ -2220,121 +2219,36 @@ iscsi_conn_set_param(struct iscsi_cls_conn *cls_conn, enum iscsi_param param,
tcp_conn->sendpage = conn->datadgst_en ?
sock_no_sendpage : tcp_conn->sock->ops->sendpage;
break;
case ISCSI_PARAM_INITIAL_R2T_EN:
session->initial_r2t_en = value;
break;
case ISCSI_PARAM_MAX_R2T:
sscanf(buf, "%d", &value);
if (session->max_r2t == roundup_pow_of_two(value))
break;
iscsi_r2tpool_free(session);
session->max_r2t = value;
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;
case ISCSI_PARAM_IMM_DATA_EN:
session->imm_data_en = value;
break;
case ISCSI_PARAM_FIRST_BURST:
session->first_burst = value;
break;
case ISCSI_PARAM_MAX_BURST:
session->max_burst = value;
break;
case ISCSI_PARAM_PDU_INORDER_EN:
session->pdu_inorder_en = value;
break;
case ISCSI_PARAM_DATASEQ_INORDER_EN:
session->dataseq_inorder_en = value;
break;
case ISCSI_PARAM_ERL:
session->erl = value;
break;
case ISCSI_PARAM_IFMARKER_EN:
BUG_ON(value);
session->ifmarker_en = value;
break;
case ISCSI_PARAM_OFMARKER_EN:
BUG_ON(value);
session->ofmarker_en = value;
break;
case ISCSI_PARAM_EXP_STATSN:
conn->exp_statsn = value;
break;
default:
break;
}
return 0;
}
static int
iscsi_session_get_param(struct iscsi_cls_session *cls_session,
enum iscsi_param param, uint32_t *value)
{
struct Scsi_Host *shost = iscsi_session_to_shost(cls_session);
struct iscsi_session *session = iscsi_hostdata(shost->hostdata);
switch(param) {
case ISCSI_PARAM_INITIAL_R2T_EN:
*value = session->initial_r2t_en;
break;
case ISCSI_PARAM_MAX_R2T:
*value = session->max_r2t;
break;
case ISCSI_PARAM_IMM_DATA_EN:
*value = session->imm_data_en;
break;
case ISCSI_PARAM_FIRST_BURST:
*value = session->first_burst;
break;
case ISCSI_PARAM_MAX_BURST:
*value = session->max_burst;
break;
case ISCSI_PARAM_PDU_INORDER_EN:
*value = session->pdu_inorder_en;
break;
case ISCSI_PARAM_DATASEQ_INORDER_EN:
*value = session->dataseq_inorder_en;
break;
case ISCSI_PARAM_ERL:
*value = session->erl;
break;
case ISCSI_PARAM_IFMARKER_EN:
*value = session->ifmarker_en;
break;
case ISCSI_PARAM_OFMARKER_EN:
*value = session->ofmarker_en;
break;
default:
return -EINVAL;
return iscsi_set_param(cls_conn, param, buf, buflen);
}
return 0;
}
static int
iscsi_conn_get_param(struct iscsi_cls_conn *cls_conn,
enum iscsi_param param, uint32_t *value)
iscsi_tcp_conn_get_param(struct iscsi_cls_conn *cls_conn,
enum iscsi_param param, char *buf)
{
struct iscsi_conn *conn = cls_conn->dd_data;
struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
struct inet_sock *inet;
struct ipv6_pinfo *np;
struct sock *sk;
int len;
switch(param) {
case ISCSI_PARAM_MAX_RECV_DLENGTH:
*value = conn->max_recv_dlength;
break;
case ISCSI_PARAM_MAX_XMIT_DLENGTH:
*value = conn->max_xmit_dlength;
break;
case ISCSI_PARAM_HDRDGST_EN:
*value = conn->hdrdgst_en;
break;
case ISCSI_PARAM_DATADGST_EN:
*value = conn->datadgst_en;
break;
case ISCSI_PARAM_CONN_PORT:
mutex_lock(&conn->xmitmutex);
if (!tcp_conn->sock) {
......@@ -2343,30 +2257,9 @@ iscsi_conn_get_param(struct iscsi_cls_conn *cls_conn,
}
inet = inet_sk(tcp_conn->sock->sk);
*value = be16_to_cpu(inet->dport);
len = sprintf(buf, "%hu\n", be16_to_cpu(inet->dport));
mutex_unlock(&conn->xmitmutex);
case ISCSI_PARAM_EXP_STATSN:
*value = conn->exp_statsn;
break;
default:
return -EINVAL;
}
return 0;
}
static int
iscsi_conn_get_str_param(struct iscsi_cls_conn *cls_conn,
enum iscsi_param param, char *buf)
{
struct iscsi_conn *conn = cls_conn->dd_data;
struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
struct sock *sk;
struct inet_sock *inet;
struct ipv6_pinfo *np;
int len = 0;
switch (param) {
case ISCSI_PARAM_CONN_ADDRESS:
mutex_lock(&conn->xmitmutex);
if (!tcp_conn->sock) {
......@@ -2388,7 +2281,7 @@ iscsi_conn_get_str_param(struct iscsi_cls_conn *cls_conn,
mutex_unlock(&conn->xmitmutex);
break;
default:
return -EINVAL;
return iscsi_conn_get_param(cls_conn, param, buf);
}
return len;
......@@ -2501,7 +2394,11 @@ static struct iscsi_transport iscsi_tcp_transport = {
ISCSI_ERL |
ISCSI_CONN_PORT |
ISCSI_CONN_ADDRESS |
ISCSI_EXP_STATSN,
ISCSI_EXP_STATSN |
ISCSI_PERSISTENT_PORT |
ISCSI_PERSISTENT_ADDRESS |
ISCSI_TARGET_NAME |
ISCSI_TPGT,
.host_template = &iscsi_sht,
.conndata_size = sizeof(struct iscsi_conn),
.max_conn = 1,
......@@ -2514,8 +2411,7 @@ static struct iscsi_transport iscsi_tcp_transport = {
.bind_conn = iscsi_tcp_conn_bind,
.destroy_conn = iscsi_tcp_conn_destroy,
.set_param = iscsi_conn_set_param,
.get_conn_param = iscsi_conn_get_param,
.get_conn_str_param = iscsi_conn_get_str_param,
.get_conn_param = iscsi_tcp_conn_get_param,
.get_session_param = iscsi_session_get_param,
.start_conn = iscsi_conn_start,
.stop_conn = iscsi_conn_stop,
......
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