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authorLinus Torvalds <torvalds@linux-foundation.org>2017-09-09 12:49:01 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-09-09 12:49:01 -0700
commit126e76ffbf78d9e948b641aadb265d16c57f5a3d (patch)
tree656e7838f0ec057936b80e15a774911df05c6005 /include/linux
parentfbd01410e89a66f346ba1b3c0161e1198449b746 (diff)
parent175206cf9ab63161dec74d9cd7f9992e062491f5 (diff)
Merge branch 'for-4.14/block-postmerge' of git://git.kernel.dk/linux-block
Pull followup block layer updates from Jens Axboe: "I ended up splitting the main pull request for this series into two, mainly because of clashes between NVMe fixes that went into 4.13 after the for-4.14 branches were split off. This pull request is mostly NVMe, but not exclusively. In detail, it contains: - Two pull request for NVMe changes from Christoph. Nothing new on the feature front, basically just fixes all over the map for the core bits, transport, rdma, etc. - Series from Bart, cleaning up various bits in the BFQ scheduler. - Series of bcache fixes, which has been lingering for a release or two. Coly sent this in, but patches from various people in this area. - Set of patches for BFQ from Paolo himself, updating both documentation and fixing some corner cases in performance. - Series from Omar, attempting to now get the 4k loop support correct. Our confidence level is higher this time. - Series from Shaohua for loop as well, improving O_DIRECT performance and fixing a use-after-free" * 'for-4.14/block-postmerge' of git://git.kernel.dk/linux-block: (74 commits) bcache: initialize dirty stripes in flash_dev_run() loop: set physical block size to logical block size bcache: fix bch_hprint crash and improve output bcache: Update continue_at() documentation bcache: silence static checker warning bcache: fix for gc and write-back race bcache: increase the number of open buckets bcache: Correct return value for sysfs attach errors bcache: correct cache_dirty_target in __update_writeback_rate() bcache: gc does not work when triggering by manual command bcache: Don't reinvent the wheel but use existing llist API bcache: do not subtract sectors_to_gc for bypassed IO bcache: fix sequential large write IO bypass bcache: Fix leak of bdev reference block/loop: remove unused field block/loop: fix use after free bfq: Use icq_to_bic() consistently bfq: Suppress compiler warnings about comparisons bfq: Check kstrtoul() return value bfq: Declare local functions static ...
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/nvme-fc-driver.h2
-rw-r--r--include/linux/nvme.h37
-rw-r--r--include/linux/string.h30
3 files changed, 59 insertions, 10 deletions
diff --git a/include/linux/nvme-fc-driver.h b/include/linux/nvme-fc-driver.h
index 2591878c1d48..9c5cb4480806 100644
--- a/include/linux/nvme-fc-driver.h
+++ b/include/linux/nvme-fc-driver.h
@@ -624,7 +624,7 @@ struct nvmefc_tgt_fcp_req {
u32 timeout;
u32 transfer_length;
struct fc_ba_rjt ba_rjt;
- struct scatterlist sg[NVME_FC_MAX_SEGMENTS];
+ struct scatterlist *sg;
int sg_cnt;
void *rspaddr;
dma_addr_t rspdma;
diff --git a/include/linux/nvme.h b/include/linux/nvme.h
index 8efff888bd9b..5144f9103723 100644
--- a/include/linux/nvme.h
+++ b/include/linux/nvme.h
@@ -32,6 +32,8 @@
#define NVME_RDMA_IP_PORT 4420
+#define NVME_NSID_ALL 0xffffffff
+
enum nvme_subsys_type {
NVME_NQN_DISC = 1, /* Discovery type target subsystem */
NVME_NQN_NVME = 2, /* NVME type target subsystem */
@@ -133,19 +135,26 @@ enum {
enum {
NVME_CC_ENABLE = 1 << 0,
NVME_CC_CSS_NVM = 0 << 4,
+ NVME_CC_EN_SHIFT = 0,
+ NVME_CC_CSS_SHIFT = 4,
NVME_CC_MPS_SHIFT = 7,
- NVME_CC_ARB_RR = 0 << 11,
- NVME_CC_ARB_WRRU = 1 << 11,
- NVME_CC_ARB_VS = 7 << 11,
- NVME_CC_SHN_NONE = 0 << 14,
- NVME_CC_SHN_NORMAL = 1 << 14,
- NVME_CC_SHN_ABRUPT = 2 << 14,
- NVME_CC_SHN_MASK = 3 << 14,
- NVME_CC_IOSQES = NVME_NVM_IOSQES << 16,
- NVME_CC_IOCQES = NVME_NVM_IOCQES << 20,
+ NVME_CC_AMS_SHIFT = 11,
+ NVME_CC_SHN_SHIFT = 14,
+ NVME_CC_IOSQES_SHIFT = 16,
+ NVME_CC_IOCQES_SHIFT = 20,
+ NVME_CC_AMS_RR = 0 << NVME_CC_AMS_SHIFT,
+ NVME_CC_AMS_WRRU = 1 << NVME_CC_AMS_SHIFT,
+ NVME_CC_AMS_VS = 7 << NVME_CC_AMS_SHIFT,
+ NVME_CC_SHN_NONE = 0 << NVME_CC_SHN_SHIFT,
+ NVME_CC_SHN_NORMAL = 1 << NVME_CC_SHN_SHIFT,
+ NVME_CC_SHN_ABRUPT = 2 << NVME_CC_SHN_SHIFT,
+ NVME_CC_SHN_MASK = 3 << NVME_CC_SHN_SHIFT,
+ NVME_CC_IOSQES = NVME_NVM_IOSQES << NVME_CC_IOSQES_SHIFT,
+ NVME_CC_IOCQES = NVME_NVM_IOCQES << NVME_CC_IOCQES_SHIFT,
NVME_CSTS_RDY = 1 << 0,
NVME_CSTS_CFS = 1 << 1,
NVME_CSTS_NSSRO = 1 << 4,
+ NVME_CSTS_PP = 1 << 5,
NVME_CSTS_SHST_NORMAL = 0 << 2,
NVME_CSTS_SHST_OCCUR = 1 << 2,
NVME_CSTS_SHST_CMPLT = 2 << 2,
@@ -251,6 +260,7 @@ enum {
NVME_CTRL_ONCS_WRITE_UNCORRECTABLE = 1 << 1,
NVME_CTRL_ONCS_DSM = 1 << 2,
NVME_CTRL_ONCS_WRITE_ZEROES = 1 << 3,
+ NVME_CTRL_ONCS_TIMESTAMP = 1 << 6,
NVME_CTRL_VWC_PRESENT = 1 << 0,
NVME_CTRL_OACS_SEC_SUPP = 1 << 0,
NVME_CTRL_OACS_DIRECTIVES = 1 << 5,
@@ -376,6 +386,13 @@ struct nvme_smart_log {
__u8 rsvd216[296];
};
+struct nvme_fw_slot_info_log {
+ __u8 afi;
+ __u8 rsvd1[7];
+ __le64 frs[7];
+ __u8 rsvd64[448];
+};
+
enum {
NVME_SMART_CRIT_SPARE = 1 << 0,
NVME_SMART_CRIT_TEMPERATURE = 1 << 1,
@@ -386,6 +403,7 @@ enum {
enum {
NVME_AER_NOTICE_NS_CHANGED = 0x0002,
+ NVME_AER_NOTICE_FW_ACT_STARTING = 0x0102,
};
struct nvme_lba_range_type {
@@ -677,6 +695,7 @@ enum {
NVME_FEAT_ASYNC_EVENT = 0x0b,
NVME_FEAT_AUTO_PST = 0x0c,
NVME_FEAT_HOST_MEM_BUF = 0x0d,
+ NVME_FEAT_TIMESTAMP = 0x0e,
NVME_FEAT_KATO = 0x0f,
NVME_FEAT_SW_PROGRESS = 0x80,
NVME_FEAT_HOST_ID = 0x81,
diff --git a/include/linux/string.h b/include/linux/string.h
index c8bdafffd2f0..e1eeb0a8a969 100644
--- a/include/linux/string.h
+++ b/include/linux/string.h
@@ -230,6 +230,7 @@ static inline const char *kbasename(const char *path)
void fortify_panic(const char *name) __noreturn __cold;
void __read_overflow(void) __compiletime_error("detected read beyond size of object passed as 1st parameter");
void __read_overflow2(void) __compiletime_error("detected read beyond size of object passed as 2nd parameter");
+void __read_overflow3(void) __compiletime_error("detected read beyond size of object passed as 3rd parameter");
void __write_overflow(void) __compiletime_error("detected write beyond size of object passed as 1st parameter");
#if !defined(__NO_FORTIFY) && defined(__OPTIMIZE__) && defined(CONFIG_FORTIFY_SOURCE)
@@ -425,4 +426,33 @@ __FORTIFY_INLINE char *strcpy(char *p, const char *q)
#endif
+/**
+ * memcpy_and_pad - Copy one buffer to another with padding
+ * @dest: Where to copy to
+ * @dest_len: The destination buffer size
+ * @src: Where to copy from
+ * @count: The number of bytes to copy
+ * @pad: Character to use for padding if space is left in destination.
+ */
+__FORTIFY_INLINE void memcpy_and_pad(void *dest, size_t dest_len,
+ const void *src, size_t count, int pad)
+{
+ size_t dest_size = __builtin_object_size(dest, 0);
+ size_t src_size = __builtin_object_size(src, 0);
+
+ if (__builtin_constant_p(dest_len) && __builtin_constant_p(count)) {
+ if (dest_size < dest_len && dest_size < count)
+ __write_overflow();
+ else if (src_size < dest_len && src_size < count)
+ __read_overflow3();
+ }
+ if (dest_size < dest_len)
+ fortify_panic(__func__);
+ if (dest_len > count) {
+ memcpy(dest, src, count);
+ memset(dest + count, pad, dest_len - count);
+ } else
+ memcpy(dest, src, dest_len);
+}
+
#endif /* _LINUX_STRING_H_ */