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authorChristoph Hellwig <hch@lst.de>2019-04-30 11:36:52 -0400
committerChristoph Hellwig <hch@lst.de>2019-05-01 09:18:36 -0400
commit811015409fd4af80bbecb8e46b3aa24c8986fb74 (patch)
tree65c9e6912250cc4889af4b036014bf4ac565e47c /drivers/nvme
parenta2faf94e57c5237a9cad31f63eeaf2412ed0e951 (diff)
downloadlinux-811015409fd4af80bbecb8e46b3aa24c8986fb74.tar.bz2
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 <hch@lst.de> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Reviewed-by: Keith Busch <keith.busch@intel.com> Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Diffstat (limited to 'drivers/nvme')
-rw-r--r--drivers/nvme/host/core.c27
-rw-r--r--drivers/nvme/host/pci.c31
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 <willy@linux.intel.com>");