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nvmf: allow target to start without RDMA devices

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This will become more important when other transports are added.

For now, it is also useful to be able to start nvmf_tgt on systems
without RDMA hardware.

Change-Id: I6b9002cc7711f928c4e6b73adcd9b677349ebdd6
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
This commit is contained in:
Daniel Verkamp 2016-08-15 16:45:05 -07:00 committed by Ben Walker
parent 0c00baf9bc
commit 47dde07521
1 changed files with 8 additions and 2 deletions
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10
lib/nvmf/rdma.c
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@ -147,6 +147,7 @@ struct spdk_nvmf_rdma {
uint16_t max_queue_depth;
uint32_t max_io_size;
uint32_t in_capsule_data_size;
uint32_t num_devices_found;
};
static struct spdk_nvmf_rdma g_rdma = { };
@ -981,6 +982,10 @@ spdk_nvmf_rdma_acceptor_start(void)
uint16_t sin_port;
int rc;
if (g_rdma.num_devices_found == 0) {
return 0;
}
memset(&addr, 0, sizeof(addr));
addr.sin_family = AF_INET;
addr.sin_port = g_nvmf_tgt.sin_port;
@ -1121,8 +1126,8 @@ spdk_nvmf_rdma_init(uint16_t max_queue_depth, uint32_t max_io_size,
dev_list = ibv_get_device_list(&num_of_rdma_devices);
if (!dev_list) {
SPDK_ERRLOG(" No RDMA verbs devices found\n");
return -1;
SPDK_NOTICELOG("No RDMA verbs devices found\n");
return 0;
}
SPDK_TRACELOG(SPDK_TRACE_RDMA, "%d RDMA verbs device(s) discovered\n", num_of_rdma_devices);
@ -1179,6 +1184,7 @@ spdk_nvmf_rdma_init(uint16_t max_queue_depth, uint32_t max_io_size,
g_rdma.max_queue_depth = max_queue_depth;
g_rdma.max_io_size = max_io_size;
g_rdma.in_capsule_data_size = in_capsule_data_size;
g_rdma.num_devices_found = num_devices_found;
return num_devices_found;
}