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(parent: 2066e1d) | patch
s390/qeth: command-chain the IDX sequence
authorJulian Wiedmann <jwi@linux.ibm.com>
Tue, 11 Jun 2019 16:37:59 +0000 (18:37 +0200)
committerDavid S. Miller <davem@davemloft.net>
Fri, 14 Jun 2019 05:39:31 +0000 (22:39 -0700)
commitf3b783b1d0d7d2d76e2bd8c136a80487f93dc680
treea19c1af50a78121a09b0256936c9a41233adf7aftree | snapshot
parent2066e1db9eef8e2057bb3a1b7cb3503a7f6725d9commit | diff
s390/qeth: command-chain the IDX sequence

The current IDX sequence first sends one WRITE cmd to activate the
device, and then sends a second cmd that READs the response.

Using qeth_alloc_cmd(), we can combine this into a single IO with two
command-chained CCWs.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/s390/net/qeth_core_main.c diff | blob | history
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