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nvmf/transport: move buffer_pool to generic struct.

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This is shared between all currently valid transports. Just move it up
to the generic structure. This will make implementing more shared
features on top of this a lot easier.

Change-Id: Ia896edcb7555903ba97adf862bc8d44228df2d36
Signed-off-by: Seth Howell <seth.howell@intel.com>
Reviewed-on: https://review.gerrithub.io/c/440416
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
This commit is contained in:
Seth Howell 2019-01-14 12:55:06 -07:00 committed by Jim Harris
parent cd4dd43ab8
commit e28605f47a
6 changed files with 51 additions and 66 deletions
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7
lib/nvmf/nvmf_internal.h
View File

@ -47,6 +47,13 @@
#define SPDK_NVMF_MAX_SGL_ENTRIES 16
/* AIO backend requires block size aligned data buffers,
* extra 4KiB aligned data buffer should work for most devices.
*/
#define SHIFT_4KB 12u
#define NVMF_DATA_BUFFER_ALIGNMENT (1u << SHIFT_4KB)
#define NVMF_DATA_BUFFER_MASK (NVMF_DATA_BUFFER_ALIGNMENT - 1LL)
enum spdk_nvmf_subsystem_state {
SPDK_NVMF_SUBSYSTEM_INACTIVE = 0,
SPDK_NVMF_SUBSYSTEM_ACTIVATING,

36
lib/nvmf/rdma.c
View File

@ -61,13 +61,6 @@
/* The RDMA completion queue size */
#define NVMF_RDMA_CQ_SIZE 4096
/* AIO backend requires block size aligned data buffers,
* extra 4KiB aligned data buffer should work for most devices.
*/
#define SHIFT_4KB 12
#define NVMF_DATA_BUFFER_ALIGNMENT (1 << SHIFT_4KB)
#define NVMF_DATA_BUFFER_MASK (NVMF_DATA_BUFFER_ALIGNMENT - 1)
enum spdk_nvmf_rdma_request_state {
/* The request is not currently in use */
RDMA_REQUEST_STATE_FREE = 0,
@ -371,8 +364,6 @@ struct spdk_nvmf_rdma_transport {
struct rdma_event_channel *event_channel;
struct spdk_mempool *data_buf_pool;
pthread_mutex_t lock;
/* fields used to poll RDMA/IB events */
@ -1199,7 +1190,7 @@ spdk_nvmf_rdma_request_fill_iovs(struct spdk_nvmf_rdma_transport *rtransport,
rdma_req->req.iovcnt = 0;
while (length) {
buf = spdk_mempool_get(rtransport->data_buf_pool);
buf = spdk_mempool_get(rtransport->transport.data_buf_pool);
if (!buf) {
rc = -ENOMEM;
goto err_exit;
@ -1232,7 +1223,7 @@ spdk_nvmf_rdma_request_fill_iovs(struct spdk_nvmf_rdma_transport *rtransport,
err_exit:
while (i) {
i--;
spdk_mempool_put(rtransport->data_buf_pool, rdma_req->data.buffers[i]);
spdk_mempool_put(rtransport->transport.data_buf_pool, rdma_req->data.buffers[i]);
rdma_req->req.iov[i].iov_base = NULL;
rdma_req->req.iov[i].iov_len = 0;
@ -1343,7 +1334,7 @@ nvmf_rdma_request_free(struct spdk_nvmf_rdma_request *rdma_req,
if (rdma_req->data_from_pool) {
/* Put the buffer/s back in the pool */
for (uint32_t i = 0; i < rdma_req->req.iovcnt; i++) {
spdk_mempool_put(rtransport->data_buf_pool, rdma_req->data.buffers[i]);
spdk_mempool_put(rtransport->transport.data_buf_pool, rdma_req->data.buffers[i]);
rdma_req->req.iov[i].iov_base = NULL;
rdma_req->data.buffers[i] = NULL;
}
@ -1693,17 +1684,6 @@ spdk_nvmf_rdma_create(struct spdk_nvmf_transport_opts *opts)
return NULL;
}
rtransport->data_buf_pool = spdk_mempool_create("spdk_nvmf_rdma",
opts->num_shared_buffers,
opts->io_unit_size + NVMF_DATA_BUFFER_ALIGNMENT,
SPDK_MEMPOOL_DEFAULT_CACHE_SIZE,
SPDK_ENV_SOCKET_ID_ANY);
if (!rtransport->data_buf_pool) {
SPDK_ERRLOG("Unable to allocate buffer pool for poll group\n");
spdk_nvmf_rdma_destroy(&rtransport->transport);
return NULL;
}
contexts = rdma_get_devices(NULL);
if (contexts == NULL) {
SPDK_ERRLOG("rdma_get_devices() failed: %s (%d)\n", spdk_strerror(errno), errno);
@ -1842,16 +1822,6 @@ spdk_nvmf_rdma_destroy(struct spdk_nvmf_transport *transport)
free(device);
}
if (rtransport->data_buf_pool != NULL) {
if (spdk_mempool_count(rtransport->data_buf_pool) !=
transport->opts.num_shared_buffers) {
SPDK_ERRLOG("transport buffer pool count is %zu but should be %u\n",
spdk_mempool_count(rtransport->data_buf_pool),
transport->opts.num_shared_buffers);
}
}
spdk_mempool_free(rtransport->data_buf_pool);
spdk_io_device_unregister(rtransport, NULL);
pthread_mutex_destroy(&rtransport->lock);
free(rtransport);

34
lib/nvmf/tcp.c
View File

@ -49,13 +49,6 @@
#include "spdk_internal/log.h"
#include "spdk_internal/nvme_tcp.h"
/*
* AIO backend requires block size aligned data buffers,
* extra 4KiB aligned data buffer should work for most devices.
*/
#define SHIFT_4KB 12u
#define NVMF_DATA_BUFFER_ALIGNMENT (1u << SHIFT_4KB)
#define NVMF_DATA_BUFFER_MASK (NVMF_DATA_BUFFER_ALIGNMENT - 1LL)
#define NVMF_TCP_MAX_ACCEPT_SOCK_ONE_TIME 16
#define NVMF_TCP_PDU_MAX_H2C_DATA_SIZE 131072
@ -298,8 +291,6 @@ struct spdk_nvmf_tcp_transport {
pthread_mutex_t lock;
struct spdk_mempool *data_buf_pool;
TAILQ_HEAD(, spdk_nvmf_tcp_port) ports;
};
@ -535,13 +526,6 @@ spdk_nvmf_tcp_destroy(struct spdk_nvmf_transport *transport)
assert(transport != NULL);
ttransport = SPDK_CONTAINEROF(transport, struct spdk_nvmf_tcp_transport, transport);
if (spdk_mempool_count(ttransport->data_buf_pool) != (transport->opts.num_shared_buffers)) {
SPDK_ERRLOG("transport buffer pool count is %zu but should be %u\n",
spdk_mempool_count(ttransport->data_buf_pool),
transport->opts.num_shared_buffers);
}
spdk_mempool_free(ttransport->data_buf_pool);
spdk_io_device_unregister(ttransport, NULL);
pthread_mutex_destroy(&ttransport->lock);
free(ttransport);
@ -591,18 +575,6 @@ spdk_nvmf_tcp_create(struct spdk_nvmf_transport_opts *opts)
return NULL;
}
ttransport->data_buf_pool = spdk_mempool_create("spdk_nvmf_tcp_data",
opts->num_shared_buffers,
opts->max_io_size + NVMF_DATA_BUFFER_ALIGNMENT,
SPDK_MEMPOOL_DEFAULT_CACHE_SIZE,
SPDK_ENV_SOCKET_ID_ANY);
if (!ttransport->data_buf_pool) {
SPDK_ERRLOG("Unable to allocate buffer pool for poll group\n");
free(ttransport);
return NULL;
}
min_shared_buffers = spdk_thread_get_count() * opts->buf_cache_size;
if (min_shared_buffers > opts->num_shared_buffers) {
SPDK_ERRLOG("There are not enough buffers to satisfy"
@ -2164,7 +2136,7 @@ spdk_nvmf_tcp_req_fill_iovs(struct spdk_nvmf_tcp_transport *ttransport,
tcp_req->req.iovcnt = 0;
while (length) {
buf = spdk_mempool_get(ttransport->data_buf_pool);
buf = spdk_mempool_get(ttransport->transport.data_buf_pool);
if (!buf) {
goto nomem;
}
@ -2185,7 +2157,7 @@ spdk_nvmf_tcp_req_fill_iovs(struct spdk_nvmf_tcp_transport *ttransport,
nomem:
while (i) {
i--;
spdk_mempool_put(ttransport->data_buf_pool, tcp_req->buffers[i]);
spdk_mempool_put(ttransport->transport.data_buf_pool, tcp_req->buffers[i]);
tcp_req->req.iov[i].iov_base = NULL;
tcp_req->req.iov[i].iov_len = 0;
@ -2596,7 +2568,7 @@ spdk_nvmf_tcp_req_process(struct spdk_nvmf_tcp_transport *ttransport,
if (tcp_req->data_from_pool) {
/* Put the buffer/s back in the pool */
for (uint32_t i = 0; i < tcp_req->req.iovcnt; i++) {
spdk_mempool_put(ttransport->data_buf_pool, tcp_req->buffers[i]);
spdk_mempool_put(ttransport->transport.data_buf_pool, tcp_req->buffers[i]);
tcp_req->req.iov[i].iov_base = NULL;
tcp_req->buffers[i] = NULL;
}

33
lib/nvmf/transport.c
View File

@ -50,6 +50,7 @@ static const struct spdk_nvmf_transport_ops *const g_transport_ops[] = {
};
#define NUM_TRANSPORTS (SPDK_COUNTOF(g_transport_ops))
#define MAX_MEMPOOL_NAME_LENGTH 40
static inline const struct spdk_nvmf_transport_ops *
spdk_nvmf_get_transport_ops(enum spdk_nvme_transport_type type)
@ -81,6 +82,8 @@ spdk_nvmf_transport_create(enum spdk_nvme_transport_type type,
{
const struct spdk_nvmf_transport_ops *ops = NULL;
struct spdk_nvmf_transport *transport;
char spdk_mempool_name[MAX_MEMPOOL_NAME_LENGTH];
int chars_written;
if ((opts->max_io_size % opts->io_unit_size != 0) ||
(opts->max_io_size / opts->io_unit_size >
@ -109,6 +112,25 @@ spdk_nvmf_transport_create(enum spdk_nvme_transport_type type,
transport->ops = ops;
transport->opts = *opts;
chars_written = snprintf(spdk_mempool_name, MAX_MEMPOOL_NAME_LENGTH, "%s_%s_%s", "spdk_nvmf",
spdk_nvme_transport_id_trtype_str(type), "data");
if (chars_written < 0) {
SPDK_ERRLOG("Unable to generate transport data buffer pool name.\n");
ops->destroy(transport);
return NULL;
}
transport->data_buf_pool = spdk_mempool_create(spdk_mempool_name,
opts->num_shared_buffers,
opts->max_io_size + NVMF_DATA_BUFFER_ALIGNMENT,
SPDK_MEMPOOL_DEFAULT_CACHE_SIZE,
SPDK_ENV_SOCKET_ID_ANY);
if (!transport->data_buf_pool) {
SPDK_ERRLOG("Unable to allocate buffer pool for poll group\n");
ops->destroy(transport);
return NULL;
}
return transport;
}
@ -128,6 +150,17 @@ spdk_nvmf_transport_get_next(struct spdk_nvmf_transport *transport)
int
spdk_nvmf_transport_destroy(struct spdk_nvmf_transport *transport)
{
if (transport->data_buf_pool != NULL) {
if (spdk_mempool_count(transport->data_buf_pool) !=
transport->opts.num_shared_buffers) {
SPDK_ERRLOG("transport buffer pool count is %zu but should be %u\n",
spdk_mempool_count(transport->data_buf_pool),
transport->opts.num_shared_buffers);
}
}
spdk_mempool_free(transport->data_buf_pool);
return transport->ops->destroy(transport);
}

3
lib/nvmf/transport.h
View File

@ -44,6 +44,9 @@ struct spdk_nvmf_transport {
const struct spdk_nvmf_transport_ops *ops;
struct spdk_nvmf_transport_opts opts;
/* A mempool for transport related data transfers */
struct spdk_mempool *data_buf_pool;
TAILQ_ENTRY(spdk_nvmf_transport) link;
};

4
test/unit/lib/nvmf/tcp.c/tcp_ut.c
View File

@ -227,7 +227,7 @@ test_nvmf_tcp_create(void)
CU_ASSERT(transport->opts.in_capsule_data_size == UT_IN_CAPSULE_DATA_SIZE);
CU_ASSERT(transport->opts.io_unit_size == UT_IO_UNIT_SIZE);
/* destroy transport */
spdk_mempool_free(ttransport->data_buf_pool);
spdk_mempool_free(ttransport->transport.data_buf_pool);
spdk_io_device_unregister(ttransport, NULL);
free(ttransport);
@ -250,7 +250,7 @@ test_nvmf_tcp_create(void)
CU_ASSERT(transport->opts.in_capsule_data_size == UT_IN_CAPSULE_DATA_SIZE);
CU_ASSERT(transport->opts.io_unit_size == UT_MAX_IO_SIZE);
/* destroy transport */
spdk_mempool_free(ttransport->data_buf_pool);
spdk_mempool_free(ttransport->transport.data_buf_pool);
spdk_io_device_unregister(ttransport, NULL);
free(ttransport);