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nvme-rdma: move nvme cm status helper to .h file 

This will enable the usage for nvme rdma target.
Also move from a lookup array to a switch statement.

Signed-off-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Max Gurtovoy 2017-02-20 13:44:28 +02:00 committed by Jens Axboe
parent faef3af69d
commit 3ee80c3d15
2 changed files with 24 additions and 22 deletions
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22
drivers/nvme/host/rdma.c
View File

@ -42,28 +42,6 @@
#define NVME_RDMA_MAX_INLINE_SEGMENTS 1
static const char *const nvme_rdma_cm_status_strs[] = {
[NVME_RDMA_CM_INVALID_LEN] = "invalid length",
[NVME_RDMA_CM_INVALID_RECFMT] = "invalid record format",
[NVME_RDMA_CM_INVALID_QID] = "invalid queue ID",
[NVME_RDMA_CM_INVALID_HSQSIZE] = "invalid host SQ size",
[NVME_RDMA_CM_INVALID_HRQSIZE] = "invalid host RQ size",
[NVME_RDMA_CM_NO_RSC] = "resource not found",
[NVME_RDMA_CM_INVALID_IRD] = "invalid IRD",
[NVME_RDMA_CM_INVALID_ORD] = "Invalid ORD",
};
static const char *nvme_rdma_cm_msg(enum nvme_rdma_cm_status status)
{
size_t index = status;
if (index < ARRAY_SIZE(nvme_rdma_cm_status_strs) &&
nvme_rdma_cm_status_strs[index])
return nvme_rdma_cm_status_strs[index];
else
return "unrecognized reason";
};
/*
* We handle AEN commands ourselves and don't even let the
* block layer know about them.

24
include/linux/nvme-rdma.h
View File

@ -29,6 +29,30 @@ enum nvme_rdma_cm_status {
NVME_RDMA_CM_INVALID_ORD = 0x08,
};
static inline const char *nvme_rdma_cm_msg(enum nvme_rdma_cm_status status)
{
switch (status) {
case NVME_RDMA_CM_INVALID_LEN:
return "invalid length";
case NVME_RDMA_CM_INVALID_RECFMT:
return "invalid record format";
case NVME_RDMA_CM_INVALID_QID:
return "invalid queue ID";
case NVME_RDMA_CM_INVALID_HSQSIZE:
return "invalid host SQ size";
case NVME_RDMA_CM_INVALID_HRQSIZE:
return "invalid host RQ size";
case NVME_RDMA_CM_NO_RSC:
return "resource not found";
case NVME_RDMA_CM_INVALID_IRD:
return "invalid IRD";
case NVME_RDMA_CM_INVALID_ORD:
return "Invalid ORD";
default:
return "unrecognized reason";
}
}
/**
* struct nvme_rdma_cm_req - rdma connect request
*