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nvmf: get correct len for the get log page command

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Change-Id: I58aa594d5ef75f7440e99371b1d97f171f3a9a6e
Signed-off-by: Ziye Yang <ziye.yang@intel.com>
This commit is contained in:
Ziye Yang 2016-12-09 10:22:01 +08:00 committed by Jim Harris
parent d24ea9009a
commit 01529c676b
1 changed files with 18 additions and 1 deletions
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19
lib/nvmf/request.c
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@ -67,6 +67,14 @@ spdk_nvmf_request_complete(struct spdk_nvmf_request *req)
return 0;
}
static inline uint32_t
nvmf_get_log_page_len(struct spdk_nvme_cmd *cmd)
{
uint32_t numdl = (cmd->cdw10 >> 16) & 0xFFFFu;
uint32_t numdu = (cmd->cdw11) & 0xFFFFu;
return ((numdu << 16) + numdl + 1) * sizeof(uint32_t);
}
static spdk_nvmf_request_exec_status
nvmf_process_discovery_cmd(struct spdk_nvmf_request *req)
{
@ -74,6 +82,7 @@ nvmf_process_discovery_cmd(struct spdk_nvmf_request *req)
struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
uint64_t log_page_offset;
uint32_t len;
/* pre-set response details for this command */
response->status.sc = SPDK_NVME_SC_SUCCESS;
@ -105,8 +114,16 @@ nvmf_process_discovery_cmd(struct spdk_nvmf_request *req)
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
len = nvmf_get_log_page_len(cmd);
if (len > req->length) {
SPDK_ERRLOG("Get log page: len (%u) > buf size (%u)\n",
len, req->length);
response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
if ((cmd->cdw10 & 0xFF) == SPDK_NVME_LOG_DISCOVERY) {
spdk_nvmf_get_discovery_log_page(req->data, log_page_offset, req->length);
spdk_nvmf_get_discovery_log_page(req->data, log_page_offset, len);
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
} else {
SPDK_ERRLOG("Unsupported log page %u\n", cmd->cdw10 & 0xFF);