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nvme-tcp: add nvme-tcp pdu size build protection 

Make sure that we don't somehow mess up the wire structures in the spec.

Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chaitanya Kulkarni <kkch@nvidia.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Sagi Grimberg 2023-03-13 10:56:23 +02:00 committed by Christoph Hellwig
parent a3406352c5
commit 7e87965d38
1 changed files with 9 additions and 0 deletions
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9
drivers/nvme/host/tcp.c
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@ -2694,6 +2694,15 @@ static struct nvmf_transport_ops nvme_tcp_transport = {
static int __init nvme_tcp_init_module(void)
{
BUILD_BUG_ON(sizeof(struct nvme_tcp_hdr) != 8);
BUILD_BUG_ON(sizeof(struct nvme_tcp_cmd_pdu) != 72);
BUILD_BUG_ON(sizeof(struct nvme_tcp_data_pdu) != 24);
BUILD_BUG_ON(sizeof(struct nvme_tcp_rsp_pdu) != 24);
BUILD_BUG_ON(sizeof(struct nvme_tcp_r2t_pdu) != 24);
BUILD_BUG_ON(sizeof(struct nvme_tcp_icreq_pdu) != 128);
BUILD_BUG_ON(sizeof(struct nvme_tcp_icresp_pdu) != 128);
BUILD_BUG_ON(sizeof(struct nvme_tcp_term_pdu) != 24);
nvme_tcp_wq = alloc_workqueue("nvme_tcp_wq",
WQ_MEM_RECLAIM | WQ_HIGHPRI, 0);
if (!nvme_tcp_wq)