ivampiresp/Spdk
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

rdma: allocate protection domains for devices up front.

Browse Source 
We were only using one pd per device anywas, and this is necessary for
shared receive queue support.

Change-Id: I86668d5b7256277fe50836863408af2215b5adf9
Signed-off-by: Seth Howell <seth.howell@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/447385
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
This commit is contained in:
Seth Howell 2019-03-07 15:09:06 -07:00 committed by Jim Harris
parent bbf7627c31
commit 62266a72cf
1 changed files with 34 additions and 62 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

96
lib/nvmf/rdma.c
View File

@ -1651,6 +1651,11 @@ spdk_nvmf_rdma_opts_init(struct spdk_nvmf_transport_opts *opts)
opts->buf_cache_size = SPDK_NVMF_RDMA_DEFAULT_BUFFER_CACHE_SIZE;
}
const struct spdk_mem_map_ops g_nvmf_rdma_map_ops = {
.notify_cb = spdk_nvmf_rdma_mem_notify,
.are_contiguous = spdk_nvmf_rdma_check_contiguous_entries
};
static int spdk_nvmf_rdma_destroy(struct spdk_nvmf_transport *transport);
static struct spdk_nvmf_transport *
@ -1659,6 +1664,7 @@ spdk_nvmf_rdma_create(struct spdk_nvmf_transport_opts *opts)
int rc;
struct spdk_nvmf_rdma_transport *rtransport;
struct spdk_nvmf_rdma_device *device, *tmp;
struct ibv_pd *pd;
struct ibv_context **contexts;
uint32_t i;
int flag;
@ -1809,6 +1815,34 @@ spdk_nvmf_rdma_create(struct spdk_nvmf_transport_opts *opts)
TAILQ_INSERT_TAIL(&rtransport->devices, device, link);
i++;
pd = NULL;
if (g_nvmf_hooks.get_ibv_pd) {
pd = g_nvmf_hooks.get_ibv_pd(NULL, device->context);
}
if (!g_nvmf_hooks.get_ibv_pd) {
device->pd = ibv_alloc_pd(device->context);
if (!device->pd) {
SPDK_ERRLOG("Unable to allocate protection domain.\n");
spdk_nvmf_rdma_destroy(&rtransport->transport);
return NULL;
}
} else {
device->pd = pd;
}
assert(device->map == NULL);
device->map = spdk_mem_map_alloc(0, &g_nvmf_rdma_map_ops, device->pd);
if (!device->map) {
SPDK_ERRLOG("Unable to allocate memory map for listen address\n");
spdk_nvmf_rdma_destroy(&rtransport->transport);
return NULL;
}
assert(device->map != NULL);
assert(device->pd != NULL);
}
rdma_free_devices(contexts);
@ -1909,11 +1943,6 @@ spdk_nvmf_rdma_trid_from_cm_id(struct rdma_cm_id *id,
struct spdk_nvme_transport_id *trid,
bool peer);
const struct spdk_mem_map_ops g_nvmf_rdma_map_ops = {
.notify_cb = spdk_nvmf_rdma_mem_notify,
.are_contiguous = spdk_nvmf_rdma_check_contiguous_entries
};
static int
spdk_nvmf_rdma_listen(struct spdk_nvmf_transport *transport,
const struct spdk_nvme_transport_id *trid)
@ -1921,7 +1950,6 @@ spdk_nvmf_rdma_listen(struct spdk_nvmf_transport *transport,
struct spdk_nvmf_rdma_transport *rtransport;
struct spdk_nvmf_rdma_device *device;
struct spdk_nvmf_rdma_port *port_tmp, *port;
struct ibv_pd *pd;
struct addrinfo *res;
struct addrinfo hints;
int family;
@ -2033,62 +2061,6 @@ spdk_nvmf_rdma_listen(struct spdk_nvmf_transport *transport,
return -EINVAL;
}
pd = NULL;
if (g_nvmf_hooks.get_ibv_pd) {
if (spdk_nvmf_rdma_trid_from_cm_id(port->id, &port->trid, 1) < 0) {
rdma_destroy_id(port->id);
free(port);
pthread_mutex_unlock(&rtransport->lock);
return -EINVAL;
}
pd = g_nvmf_hooks.get_ibv_pd(&port->trid, port->id->verbs);
}
if (device->pd == NULL) {
/* Haven't created a protection domain yet. */
if (!g_nvmf_hooks.get_ibv_pd) {
device->pd = ibv_alloc_pd(device->context);
if (!device->pd) {
SPDK_ERRLOG("Unable to allocate protection domain.\n");
rdma_destroy_id(port->id);
free(port);
pthread_mutex_unlock(&rtransport->lock);
return -ENOMEM;
}
} else {
device->pd = pd;
}
assert(device->map == NULL);
device->map = spdk_mem_map_alloc(0, &g_nvmf_rdma_map_ops, device->pd);
if (!device->map) {
SPDK_ERRLOG("Unable to allocate memory map for listen address\n");
if (!g_nvmf_hooks.get_ibv_pd) {
ibv_dealloc_pd(device->pd);
}
rdma_destroy_id(port->id);
free(port);
pthread_mutex_unlock(&rtransport->lock);
return -ENOMEM;
}
} else if (g_nvmf_hooks.get_ibv_pd) {
/* A protection domain exists for this device, but the user has
* enabled hooks. Verify that they only supply one pd per device. */
if (device->pd != pd) {
SPDK_ERRLOG("The NVMe-oF target only supports one protection domain per device.\n");
rdma_destroy_id(port->id);
free(port);
pthread_mutex_unlock(&rtransport->lock);
return -EINVAL;
}
}
assert(device->map != NULL);
assert(device->pd != NULL);
SPDK_INFOLOG(SPDK_LOG_RDMA, "*** NVMf Target Listening on %s port %d ***\n",
port->trid.traddr, ntohs(rdma_get_src_port(port->id)));