linux/drivers/nvme
Wilfred Mallawa 5a869d0177 nvme/tcp: handle tls partially sent records in write_space()
With TLS enabled, records that are encrypted and appended to TLS TX
list can fail to see a retry if the underlying TCP socket is busy, for
example, hitting an EAGAIN from tcp_sendmsg_locked(). This is not known
to the NVMe TCP driver, as the TLS layer successfully generated a record.

Typically, the TLS write_space() callback would ensure such records are
retried, but in the NVMe TCP Host driver, write_space() invokes
nvme_tcp_write_space(). This causes a partially sent record in the TLS TX
list to timeout after not being retried.

This patch fixes the above by calling queue->write_space(), which calls
into the TLS layer to retry any pending records.

Fixes: be8e82caa6 ("nvme-tcp: enable TLS handshake upcall")
Signed-off-by: Wilfred Mallawa <wilfred.mallawa@wdc.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
2025-10-16 11:32:04 -07:00
..
common nvme-auth: use hkdf_expand_label() 2025-09-15 16:42:07 -07:00
host nvme/tcp: handle tls partially sent records in write_space() 2025-10-16 11:32:04 -07:00
target nvmet: add safety check for subsys lock 2025-09-23 15:38:28 -07:00
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