s390/qeth: make cmd/reply matching more flexible

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When data is received on the READ channel, the matching logic for cmds
that are waiting for a reply is currently hard-coded into the channel's
main IO callback.
Move this into a per-cmd callback, so that we can apply custom matching
logic for each individual cmd.

This also allows us to remove the coarse-grained check for unexpected
non-IPA replies, since they will no longer match against _all_ pending
cmds.

Note that IDX cmds use _no_ matcher, since their reply is synchronously
received as part of the cmd's IO.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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This commit is contained in:

Julian Wiedmann 2020-01-25 16:53:02 +01:00 • committed by David S. Miller

parent 91003f354e

commit 7f92316c53

3 changed files with 39 additions and 12 deletions

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14

drivers/s390/net/qeth_core.h

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34

drivers/s390/net/qeth_core_main.c

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3

drivers/s390/net/qeth_l2_main.c

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