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nvme-tcp: use crc32c() and skb_copy_and_crc32c_datagram_iter()

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Now that the crc32c() library function directly takes advantage of
architecture-specific optimizations and there also now exists a function
skb_copy_and_crc32c_datagram_iter(), it is unnecessary to go through the
crypto_ahash API.  Just use those functions.  This is much simpler, and
it also improves performance due to eliminating the crypto API overhead.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Link: https://patch.msgid.link/20250519175012.36581-10-ebiggers@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Eric Biggers
2025-05-19 10:50:11 -07:00
committed by Jakub Kicinski
parent ea6342d989
commit 427fff9aff
2 changed files with 42 additions and 86 deletions
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4
drivers/nvme/host/Kconfig
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@@ -84,9 +84,9 @@ config NVME_TCP
tristate "NVM Express over Fabrics TCP host driver"
depends on INET
depends on BLOCK
select CRC32
select NET_CRC32C
select NVME_FABRICS
select CRYPTO
select CRYPTO_CRC32C
help
This provides support for the NVMe over Fabrics protocol using
the TCP transport. This allows you to use remote block devices