This provides an abstraction layer around TCP sockets. Previously we just used fd integers, but we don't want to be tied to integers for alternative userspace TCP stacks. Future patches will do more work to enable multiple implementations of this abstraction. For now, just get the abstraction in place for POSIX sockets and make all of the iSCSI changes associated with it. Signed-off-by: Jim Harris <james.r.harris@intel.com> Change-Id: I9a825e9e02eb6927c8702d205665c626f57b3771 Reviewed-on: https://review.gerrithub.io/398861 Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com> Tested-by: SPDK Automated Test System <sys_sgsw@intel.com> Reviewed-by: <shuhei.matsumoto.xt@hitachi.com> Reviewed-by: Ziye Yang <optimistyzy@gmail.com>
255 lines
4.0 KiB
C
255 lines
4.0 KiB
C
#include "iscsi/task.h"
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#include "iscsi/iscsi.h"
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#include "iscsi/conn.h"
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#include "iscsi/acceptor.h"
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#include "spdk/env.h"
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#include "spdk/event.h"
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#include "spdk/sock.h"
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#include "spdk_internal/log.h"
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#include "scsi/scsi_internal.h"
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SPDK_LOG_REGISTER_COMPONENT("iscsi", SPDK_LOG_ISCSI)
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TAILQ_HEAD(, spdk_iscsi_pdu) g_write_pdu_list;
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struct spdk_iscsi_task *
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spdk_iscsi_task_get(struct spdk_iscsi_conn *conn,
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struct spdk_iscsi_task *parent,
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spdk_scsi_task_cpl cpl_fn)
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{
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struct spdk_iscsi_task *task;
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task = calloc(1, sizeof(*task));
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return task;
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}
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void
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spdk_scsi_task_put(struct spdk_scsi_task *task)
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{
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free(task);
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}
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void
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spdk_put_pdu(struct spdk_iscsi_pdu *pdu)
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{
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if (!pdu) {
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return;
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}
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pdu->ref--;
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if (pdu->ref < 0) {
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CU_FAIL("negative ref count");
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pdu->ref = 0;
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}
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if (pdu->ref == 0) {
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if (pdu->data && !pdu->data_from_mempool) {
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free(pdu->data);
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}
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free(pdu);
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}
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}
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struct spdk_iscsi_pdu *
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spdk_get_pdu(void)
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{
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struct spdk_iscsi_pdu *pdu;
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pdu = malloc(sizeof(*pdu));
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if (!pdu) {
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return NULL;
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}
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memset(pdu, 0, offsetof(struct spdk_iscsi_pdu, ahs));
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pdu->ref = 1;
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return pdu;
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}
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void
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spdk_scsi_task_process_null_lun(struct spdk_scsi_task *task)
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{
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}
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void
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spdk_scsi_dev_queue_task(struct spdk_scsi_dev *dev,
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struct spdk_scsi_task *task)
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{
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}
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struct spdk_scsi_port *
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spdk_scsi_dev_find_port_by_id(struct spdk_scsi_dev *dev, uint64_t id)
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{
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return NULL;
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}
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void
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spdk_scsi_dev_queue_mgmt_task(struct spdk_scsi_dev *dev,
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struct spdk_scsi_task *task,
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enum spdk_scsi_task_func func)
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{
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}
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const char *
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spdk_scsi_dev_get_name(const struct spdk_scsi_dev *dev)
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{
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if (dev != NULL) {
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return dev->name;
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}
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return NULL;
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}
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void
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spdk_iscsi_acceptor_start(struct spdk_iscsi_portal *p)
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{
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}
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void
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spdk_iscsi_acceptor_stop(struct spdk_iscsi_portal *p)
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{
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}
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struct spdk_sock *
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spdk_sock_listen(const char *ip, int port)
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{
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static int g_sock;
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return (struct spdk_sock *)&g_sock;
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}
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int
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spdk_sock_close(struct spdk_sock **sock)
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{
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*sock = NULL;
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return 0;
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}
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static struct spdk_cpuset *g_app_core_mask;
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struct spdk_cpuset *
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spdk_app_get_core_mask(void)
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{
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int i;
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if (!g_app_core_mask) {
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g_app_core_mask = spdk_cpuset_alloc();
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for (i = 0; i < SPDK_CPUSET_SIZE; i++) {
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spdk_cpuset_set_cpu(g_app_core_mask, i, true);
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}
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}
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return g_app_core_mask;
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}
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int
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spdk_app_parse_core_mask(const char *mask, struct spdk_cpuset *cpumask)
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{
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int rc;
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if (mask == NULL || cpumask == NULL) {
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return -1;
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}
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rc = spdk_cpuset_parse(cpumask, mask);
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if (rc < 0) {
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return -1;
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}
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return 0;
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}
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uint32_t
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spdk_env_get_current_core(void)
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{
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return 0;
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}
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struct spdk_event *
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spdk_event_allocate(uint32_t core, spdk_event_fn fn, void *arg1, void *arg2)
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{
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return NULL;
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}
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struct spdk_scsi_dev *
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spdk_scsi_dev_construct(const char *name, const char **bdev_name_list,
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int *lun_id_list, int num_luns, uint8_t protocol_id,
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void (*hotremove_cb)(const struct spdk_scsi_lun *, void *),
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void *hotremove_ctx)
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{
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return NULL;
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}
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void
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spdk_scsi_dev_destruct(struct spdk_scsi_dev *dev)
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{
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}
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int
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spdk_scsi_dev_add_port(struct spdk_scsi_dev *dev, uint64_t id, const char *name)
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{
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return 0;
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}
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int
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spdk_iscsi_drop_conns(struct spdk_iscsi_conn *conn, const char *conn_match,
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int drop_all)
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{
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return 0;
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}
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int
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spdk_scsi_dev_delete_port(struct spdk_scsi_dev *dev, uint64_t id)
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{
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return 0;
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}
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void
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spdk_shutdown_iscsi_conns(void)
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{
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}
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void
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spdk_iscsi_task_cpl(struct spdk_scsi_task *scsi_task)
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{
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}
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void
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spdk_iscsi_task_mgmt_cpl(struct spdk_scsi_task *scsi_task)
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{
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}
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int
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spdk_iscsi_conn_read_data(struct spdk_iscsi_conn *conn, int bytes,
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void *buf)
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{
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return 0;
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}
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void
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spdk_iscsi_conn_write_pdu(struct spdk_iscsi_conn *conn, struct spdk_iscsi_pdu *pdu)
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{
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TAILQ_INSERT_TAIL(&g_write_pdu_list, pdu, tailq);
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}
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void
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spdk_iscsi_conn_logout(struct spdk_iscsi_conn *conn)
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{
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}
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void
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spdk_scsi_task_set_status(struct spdk_scsi_task *task, int sc, int sk, int asc, int ascq)
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{
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}
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void
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spdk_scsi_task_set_data(struct spdk_scsi_task *task, void *data, uint32_t len)
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{
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task->iovs[0].iov_base = data;
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task->iovs[0].iov_len = len;
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}
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