From 811015409fd4af80bbecb8e46b3aa24c8986fb74 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Tue, 30 Apr 2019 11:36:52 -0400 Subject: [PATCH] nvme: move command size checks to the core Most command aren't PCIe specific, so move the size checking for them to core.c Signed-off-by: Christoph Hellwig Reviewed-by: Bart Van Assche Reviewed-by: Keith Busch Reviewed-by: Chaitanya Kulkarni --- drivers/nvme/host/core.c | 27 +++++++++++++++++++++++++++ drivers/nvme/host/pci.c | 31 +++---------------------------- 2 files changed, 30 insertions(+), 28 deletions(-) diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index 3dd043aa6d1f..e970c5adee28 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -3879,10 +3879,37 @@ void nvme_start_queues(struct nvme_ctrl *ctrl) } EXPORT_SYMBOL_GPL(nvme_start_queues); +/* + * Check we didn't inadvertently grow the command structure sizes: + */ +static inline void _nvme_check_size(void) +{ + BUILD_BUG_ON(sizeof(struct nvme_common_command) != 64); + BUILD_BUG_ON(sizeof(struct nvme_rw_command) != 64); + BUILD_BUG_ON(sizeof(struct nvme_identify) != 64); + BUILD_BUG_ON(sizeof(struct nvme_features) != 64); + BUILD_BUG_ON(sizeof(struct nvme_download_firmware) != 64); + BUILD_BUG_ON(sizeof(struct nvme_format_cmd) != 64); + BUILD_BUG_ON(sizeof(struct nvme_dsm_cmd) != 64); + BUILD_BUG_ON(sizeof(struct nvme_write_zeroes_cmd) != 64); + BUILD_BUG_ON(sizeof(struct nvme_abort_cmd) != 64); + BUILD_BUG_ON(sizeof(struct nvme_get_log_page_command) != 64); + BUILD_BUG_ON(sizeof(struct nvme_command) != 64); + BUILD_BUG_ON(sizeof(struct nvme_id_ctrl) != NVME_IDENTIFY_DATA_SIZE); + BUILD_BUG_ON(sizeof(struct nvme_id_ns) != NVME_IDENTIFY_DATA_SIZE); + BUILD_BUG_ON(sizeof(struct nvme_lba_range_type) != 64); + BUILD_BUG_ON(sizeof(struct nvme_smart_log) != 512); + BUILD_BUG_ON(sizeof(struct nvme_dbbuf) != 64); + BUILD_BUG_ON(sizeof(struct nvme_directive_cmd) != 64); +} + + int __init nvme_core_init(void) { int result = -ENOMEM; + _nvme_check_size(); + nvme_wq = alloc_workqueue("nvme-wq", WQ_UNBOUND | WQ_MEM_RECLAIM | WQ_SYSFS, 0); if (!nvme_wq) diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c index 9c1a8fd68b3a..3e4fb891a95a 100644 --- a/drivers/nvme/host/pci.c +++ b/drivers/nvme/host/pci.c @@ -226,33 +226,6 @@ struct nvme_iod { struct scatterlist *sg; }; -/* - * Check we didin't inadvertently grow the command struct - */ -static inline void _nvme_check_size(void) -{ - BUILD_BUG_ON(sizeof(struct nvme_common_command) != 64); - BUILD_BUG_ON(sizeof(struct nvme_rw_command) != 64); - BUILD_BUG_ON(sizeof(struct nvme_identify) != 64); - BUILD_BUG_ON(sizeof(struct nvme_create_cq) != 64); - BUILD_BUG_ON(sizeof(struct nvme_create_sq) != 64); - BUILD_BUG_ON(sizeof(struct nvme_delete_queue) != 64); - BUILD_BUG_ON(sizeof(struct nvme_features) != 64); - BUILD_BUG_ON(sizeof(struct nvme_download_firmware) != 64); - BUILD_BUG_ON(sizeof(struct nvme_format_cmd) != 64); - BUILD_BUG_ON(sizeof(struct nvme_dsm_cmd) != 64); - BUILD_BUG_ON(sizeof(struct nvme_write_zeroes_cmd) != 64); - BUILD_BUG_ON(sizeof(struct nvme_abort_cmd) != 64); - BUILD_BUG_ON(sizeof(struct nvme_get_log_page_command) != 64); - BUILD_BUG_ON(sizeof(struct nvme_command) != 64); - BUILD_BUG_ON(sizeof(struct nvme_id_ctrl) != NVME_IDENTIFY_DATA_SIZE); - BUILD_BUG_ON(sizeof(struct nvme_id_ns) != NVME_IDENTIFY_DATA_SIZE); - BUILD_BUG_ON(sizeof(struct nvme_lba_range_type) != 64); - BUILD_BUG_ON(sizeof(struct nvme_smart_log) != 512); - BUILD_BUG_ON(sizeof(struct nvme_dbbuf) != 64); - BUILD_BUG_ON(sizeof(struct nvme_directive_cmd) != 64); -} - static unsigned int max_io_queues(void) { return num_possible_cpus() + write_queues + poll_queues; @@ -2988,6 +2961,9 @@ static struct pci_driver nvme_driver = { static int __init nvme_init(void) { + BUILD_BUG_ON(sizeof(struct nvme_create_cq) != 64); + BUILD_BUG_ON(sizeof(struct nvme_create_sq) != 64); + BUILD_BUG_ON(sizeof(struct nvme_delete_queue) != 64); BUILD_BUG_ON(IRQ_AFFINITY_MAX_SETS < 2); return pci_register_driver(&nvme_driver); } @@ -2996,7 +2972,6 @@ static void __exit nvme_exit(void) { pci_unregister_driver(&nvme_driver); flush_workqueue(nvme_wq); - _nvme_check_size(); } MODULE_AUTHOR("Matthew Wilcox "); -- 2.30.2