From: Kanchan Joshi <[email protected]>
To: [email protected], [email protected], [email protected],
[email protected], [email protected],
[email protected], [email protected], [email protected]
Cc: [email protected], [email protected],
[email protected], [email protected],
[email protected], [email protected],
[email protected], [email protected],
Kanchan Joshi <[email protected]>,
Anuj Gupta <[email protected]>
Subject: [PATCH v6 08/10] nvme: add support for passing on the application tag
Date: Wed, 30 Oct 2024 23:31:10 +0530 [thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
With user integrity buffer, there is a way to specify the app_tag.
Set the corresponding protocol specific flags and send the app_tag down.
Reviewed-by: Christoph Hellwig <[email protected]>
Signed-off-by: Anuj Gupta <[email protected]>
Signed-off-by: Kanchan Joshi <[email protected]>
Reviewed-by: Keith Busch <[email protected]>
---
drivers/nvme/host/core.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 79bd6b22e88d..3b329e036d33 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -872,6 +872,12 @@ static blk_status_t nvme_setup_discard(struct nvme_ns *ns, struct request *req,
return BLK_STS_OK;
}
+static void nvme_set_app_tag(struct request *req, struct nvme_command *cmnd)
+{
+ cmnd->rw.lbat = cpu_to_le16(bio_integrity(req->bio)->app_tag);
+ cmnd->rw.lbatm = cpu_to_le16(0xffff);
+}
+
static void nvme_set_ref_tag(struct nvme_ns *ns, struct nvme_command *cmnd,
struct request *req)
{
@@ -1012,6 +1018,10 @@ static inline blk_status_t nvme_setup_rw(struct nvme_ns *ns,
control |= NVME_RW_APPEND_PIREMAP;
nvme_set_ref_tag(ns, cmnd, req);
}
+ if (bio_integrity_flagged(req->bio, BIP_CHECK_APPTAG)) {
+ control |= NVME_RW_PRINFO_PRCHK_APP;
+ nvme_set_app_tag(req, cmnd);
+ }
}
cmnd->rw.control = cpu_to_le16(control);
--
2.25.1
next prev parent reply other threads:[~2024-10-30 18:10 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20241030180957epcas5p3312b0a582e8562f8c2169e64d41592b2@epcas5p3.samsung.com>
2024-10-30 18:01 ` [PATCH v6 00/10] Read/Write with metadata/integrity Kanchan Joshi
[not found] ` <CGME20241030181000epcas5p2bfb47a79f1e796116135f646c6f0ccc7@epcas5p2.samsung.com>
2024-10-30 18:01 ` [PATCH v6 01/10] block: define set of integrity flags to be inherited by cloned bip Kanchan Joshi
[not found] ` <CGME20241030181002epcas5p2b44e244bcd0c49d0a379f0f4fe07dc3f@epcas5p2.samsung.com>
2024-10-30 18:01 ` [PATCH v6 02/10] block: copy back bounce buffer to user-space correctly in case of split Kanchan Joshi
[not found] ` <CGME20241030181005epcas5p43b40adb5af1029c9ffaecde317bf1c5d@epcas5p4.samsung.com>
2024-10-30 18:01 ` [PATCH v6 03/10] block: modify bio_integrity_map_user to accept iov_iter as argument Kanchan Joshi
[not found] ` <CGME20241030181008epcas5p333603fdbf3afb60947d3fc51138d11bf@epcas5p3.samsung.com>
2024-10-30 18:01 ` [PATCH v6 04/10] fs, iov_iter: define meta io descriptor Kanchan Joshi
[not found] ` <CGME20241030181010epcas5p2c399ecea97ed6d0e5fb228b5d15c2089@epcas5p2.samsung.com>
2024-10-30 18:01 ` [PATCH v6 05/10] fs: introduce IOCB_HAS_METADATA for metadata Kanchan Joshi
[not found] ` <CGME20241030181013epcas5p2762403c83e29c81ec34b2a7755154245@epcas5p2.samsung.com>
2024-10-30 18:01 ` [PATCH v6 06/10] io_uring/rw: add support to send metadata along with read/write Kanchan Joshi
2024-10-30 21:09 ` Keith Busch
[not found] ` <CGME20241030181016epcas5p3da284aa997e81d9855207584ab4bace3@epcas5p3.samsung.com>
2024-10-30 18:01 ` [PATCH v6 07/10] block: introduce BIP_CHECK_GUARD/REFTAG/APPTAG bip_flags Kanchan Joshi
[not found] ` <CGME20241030181019epcas5p135961d721959d80f1f60bd4790ed52cf@epcas5p1.samsung.com>
2024-10-30 18:01 ` Kanchan Joshi [this message]
[not found] ` <CGME20241030181021epcas5p1c61b7980358f3120014b4f99390d1595@epcas5p1.samsung.com>
2024-10-30 18:01 ` [PATCH v6 09/10] scsi: add support for user-meta interface Kanchan Joshi
[not found] ` <CGME20241030181024epcas5p3964697a08159f8593a6f94764f77a7f3@epcas5p3.samsung.com>
2024-10-30 18:01 ` [PATCH v6 10/10] block: add support to pass user meta buffer Kanchan Joshi
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