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lib/iscsi: Remove unnecessary declaration of iscsi_reject()

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Remove declaration of iscsi_reject(), and move it up in the file.
This makes the structure of the source code more top-down.

Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I4b812bf200bba86c58c84c504134bbe7afe1e967
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/470264
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
This commit is contained in:
Shuhei Matsumoto 2019-10-03 08:51:08 +09:00 committed by Changpeng Liu
parent 5dd0e54d7e
commit 828a077c7f
1 changed files with 81 additions and 84 deletions
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165
lib/iscsi/iscsi.c
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@ -81,9 +81,6 @@ static int create_iscsi_sess(struct spdk_iscsi_conn *conn,
static uint8_t append_iscsi_sess(struct spdk_iscsi_conn *conn, static uint8_t append_iscsi_sess(struct spdk_iscsi_conn *conn,
const char *initiator_port_name, uint16_t tsih, uint16_t cid); const char *initiator_port_name, uint16_t tsih, uint16_t cid);
static int iscsi_reject(struct spdk_iscsi_conn *conn, struct spdk_iscsi_pdu *pdu,
int reason);
#define DMIN32(A,B) ((uint32_t) ((uint32_t)(A) > (uint32_t)(B) ? (uint32_t)(B) : (uint32_t)(A))) #define DMIN32(A,B) ((uint32_t) ((uint32_t)(A) > (uint32_t)(B) ? (uint32_t)(B) : (uint32_t)(A)))
#define DMIN64(A,B) ((uint64_t) ((A) > (B) ? (B) : (A))) #define DMIN64(A,B) ((uint64_t) ((A) > (B) ? (B) : (A)))
@ -258,6 +255,87 @@ hex2bin(uint8_t *data, size_t data_len, const char *str)
return total; return total;
} }
static int
iscsi_reject(struct spdk_iscsi_conn *conn, struct spdk_iscsi_pdu *pdu,
int reason)
{
struct spdk_iscsi_pdu *rsp_pdu;
struct iscsi_bhs_reject *rsph;
uint8_t *data;
int total_ahs_len;
int data_len;
int alloc_len;
total_ahs_len = pdu->bhs.total_ahs_len;
data_len = 0;
alloc_len = ISCSI_BHS_LEN + (4 * total_ahs_len);
if (conn->header_digest) {
alloc_len += ISCSI_DIGEST_LEN;
}
data = calloc(1, alloc_len);
if (!data) {
SPDK_ERRLOG("calloc() failed for data segment\n");
return -ENOMEM;
}
SPDK_DEBUGLOG(SPDK_LOG_ISCSI, "Reject PDU reason=%d\n", reason);
if (conn->sess != NULL) {
SPDK_DEBUGLOG(SPDK_LOG_ISCSI,
"StatSN=%u, ExpCmdSN=%u, MaxCmdSN=%u\n",
conn->StatSN, conn->sess->ExpCmdSN,
conn->sess->MaxCmdSN);
} else {
SPDK_DEBUGLOG(SPDK_LOG_ISCSI, "StatSN=%u\n", conn->StatSN);
}
memcpy(data, &pdu->bhs, ISCSI_BHS_LEN);
data_len += ISCSI_BHS_LEN;
if (total_ahs_len != 0) {
memcpy(data + data_len, pdu->ahs, (4 * total_ahs_len));
data_len += (4 * total_ahs_len);
}
if (conn->header_digest) {
memcpy(data + data_len, pdu->header_digest, ISCSI_DIGEST_LEN);
data_len += ISCSI_DIGEST_LEN;
}
rsp_pdu = spdk_get_pdu();
if (rsp_pdu == NULL) {
free(data);
return -ENOMEM;
}
rsph = (struct iscsi_bhs_reject *)&rsp_pdu->bhs;
rsp_pdu->data = data;
rsph->opcode = ISCSI_OP_REJECT;
rsph->flags |= 0x80; /* bit 0 is default to 1 */
rsph->reason = reason;
DSET24(rsph->data_segment_len, data_len);
rsph->ffffffff = 0xffffffffU;
to_be32(&rsph->stat_sn, conn->StatSN);
conn->StatSN++;
if (conn->sess != NULL) {
to_be32(&rsph->exp_cmd_sn, conn->sess->ExpCmdSN);
to_be32(&rsph->max_cmd_sn, conn->sess->MaxCmdSN);
} else {
to_be32(&rsph->exp_cmd_sn, 1);
to_be32(&rsph->max_cmd_sn, 1);
}
SPDK_LOGDUMP(SPDK_LOG_ISCSI, "PDU", (void *)&rsp_pdu->bhs, ISCSI_BHS_LEN);
spdk_iscsi_conn_write_pdu(conn, rsp_pdu);
return 0;
}
uint32_t uint32_t
spdk_iscsi_pdu_calc_header_digest(struct spdk_iscsi_pdu *pdu) spdk_iscsi_pdu_calc_header_digest(struct spdk_iscsi_pdu *pdu)
{ {
@ -1015,87 +1093,6 @@ error_return:
return -1; return -1;
} }
static int
iscsi_reject(struct spdk_iscsi_conn *conn, struct spdk_iscsi_pdu *pdu,
int reason)
{
struct spdk_iscsi_pdu *rsp_pdu;
struct iscsi_bhs_reject *rsph;
uint8_t *data;
int total_ahs_len;
int data_len;
int alloc_len;
total_ahs_len = pdu->bhs.total_ahs_len;
data_len = 0;
alloc_len = ISCSI_BHS_LEN + (4 * total_ahs_len);
if (conn->header_digest) {
alloc_len += ISCSI_DIGEST_LEN;
}
data = calloc(1, alloc_len);
if (!data) {
SPDK_ERRLOG("calloc() failed for data segment\n");
return -ENOMEM;
}
SPDK_DEBUGLOG(SPDK_LOG_ISCSI, "Reject PDU reason=%d\n", reason);
if (conn->sess != NULL) {
SPDK_DEBUGLOG(SPDK_LOG_ISCSI,
"StatSN=%u, ExpCmdSN=%u, MaxCmdSN=%u\n",
conn->StatSN, conn->sess->ExpCmdSN,
conn->sess->MaxCmdSN);
} else {
SPDK_DEBUGLOG(SPDK_LOG_ISCSI, "StatSN=%u\n", conn->StatSN);
}
memcpy(data, &pdu->bhs, ISCSI_BHS_LEN);
data_len += ISCSI_BHS_LEN;
if (total_ahs_len != 0) {
memcpy(data + data_len, pdu->ahs, (4 * total_ahs_len));
data_len += (4 * total_ahs_len);
}
if (conn->header_digest) {
memcpy(data + data_len, pdu->header_digest, ISCSI_DIGEST_LEN);
data_len += ISCSI_DIGEST_LEN;
}
rsp_pdu = spdk_get_pdu();
if (rsp_pdu == NULL) {
free(data);
return -ENOMEM;
}
rsph = (struct iscsi_bhs_reject *)&rsp_pdu->bhs;
rsp_pdu->data = data;
rsph->opcode = ISCSI_OP_REJECT;
rsph->flags |= 0x80; /* bit 0 is default to 1 */
rsph->reason = reason;
DSET24(rsph->data_segment_len, data_len);
rsph->ffffffff = 0xffffffffU;
to_be32(&rsph->stat_sn, conn->StatSN);
conn->StatSN++;
if (conn->sess != NULL) {
to_be32(&rsph->exp_cmd_sn, conn->sess->ExpCmdSN);
to_be32(&rsph->max_cmd_sn, conn->sess->MaxCmdSN);
} else {
to_be32(&rsph->exp_cmd_sn, 1);
to_be32(&rsph->max_cmd_sn, 1);
}
SPDK_LOGDUMP(SPDK_LOG_ISCSI, "PDU", (void *)&rsp_pdu->bhs, ISCSI_BHS_LEN);
spdk_iscsi_conn_write_pdu(conn, rsp_pdu);
return 0;
}
static int static int
iscsi_check_values(struct spdk_iscsi_conn *conn) iscsi_check_values(struct spdk_iscsi_conn *conn)
{ {