diff options
| author | Israel Rukshin <israelr@mellanox.com> | 2019-08-18 12:08:51 +0300 |
|---|---|---|
| committer | Sagi Grimberg <sagi@grimberg.me> | 2019-08-29 12:55:01 -0700 |
| commit | 52b4451a9e5ae1e9ae739db16e8af61c77805389 (patch) | |
| tree | 5149ab468ade083a738abef34541a3e970460a3f /drivers/nvme/host/fabrics.c | |
| parent | 35d1a938dcdaeb8e1d860f061a0cd11f67f42774 (diff) | |
nvme-fabrics: Add type of service (TOS) configuration
TOS is user-defined and needs to be configured via nvme-cli.
It must be set before initiating any traffic and once set the TOS
cannot be changed.
Signed-off-by: Israel Rukshin <israelr@mellanox.com>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Diffstat (limited to 'drivers/nvme/host/fabrics.c')
| -rw-r--r-- | drivers/nvme/host/fabrics.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/nvme/host/fabrics.c b/drivers/nvme/host/fabrics.c index 1994d5b42f94..854ce75e6c2d 100644 --- a/drivers/nvme/host/fabrics.c +++ b/drivers/nvme/host/fabrics.c @@ -611,6 +611,7 @@ static const match_table_t opt_tokens = { { NVMF_OPT_DATA_DIGEST, "data_digest" }, { NVMF_OPT_NR_WRITE_QUEUES, "nr_write_queues=%d" }, { NVMF_OPT_NR_POLL_QUEUES, "nr_poll_queues=%d" }, + { NVMF_OPT_TOS, "tos=%d" }, { NVMF_OPT_ERR, NULL } }; @@ -632,6 +633,7 @@ static int nvmf_parse_options(struct nvmf_ctrl_options *opts, opts->duplicate_connect = false; opts->hdr_digest = false; opts->data_digest = false; + opts->tos = -1; /* < 0 == use transport default */ options = o = kstrdup(buf, GFP_KERNEL); if (!options) @@ -856,6 +858,22 @@ static int nvmf_parse_options(struct nvmf_ctrl_options *opts, } opts->nr_poll_queues = token; break; + case NVMF_OPT_TOS: + if (match_int(args, &token)) { + ret = -EINVAL; + goto out; + } + if (token < 0) { + pr_err("Invalid type of service %d\n", token); + ret = -EINVAL; + goto out; + } + if (token > 255) { + pr_warn("Clamping type of service to 255\n"); + token = 255; + } + opts->tos = token; + break; default: pr_warn("unknown parameter or missing value '%s' in ctrl creation request\n", p); |