talos-op-linux/drivers/s390/net, branch master

s390/qeth: remove HARDSETUP state

2020-01-26T14:20:32+00:00

qeth_l?_stop_card() is _never_ called while in HARDSETUP state, and there's no other usage of the card state that relies on the DOWN -> HARDSETUP -> SOFTSETUP transition. As related cleanup, remove the check in qeth_realloc_buffer_pool() as it is already done by the callers. Signed-off-by: Julian Wiedmann Signed-off-by: David S. Miller

s390/qeth: make cmd/reply matching more flexible

2020-01-26T14:20:32+00:00

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 Signed-off-by: David S. Miller

s390/qeth: consolidate online/offline code

2020-01-26T14:20:32+00:00

Large parts of the online/offline code are identical now, and cleaning up the remaining stuff is easier with a shared core. Signed-off-by: Julian Wiedmann Signed-off-by: David S. Miller

s390/qeth: consolidate QDIO queue setup

2020-01-26T14:20:32+00:00

Move some duplicated logic into a shared code path. Signed-off-by: Julian Wiedmann Signed-off-by: David S. Miller

s390/qeth: shift some bridgeport code around

2020-01-26T14:20:32+00:00

qeth_l2_setup_bridgeport_attrs() is entirely unrelated to sysfs functionality, move it where it belongs. While at it merge all the bridgeport-specific code in the set-online path together. Signed-off-by: Julian Wiedmann Reviewed-by: Alexandra Winter Signed-off-by: David S. Miller

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2019-12-31T21:37:13+00:00

Simple overlapping changes in bpf land wrt. bpf_helper_defs.h handling. Signed-off-by: David S. Miller

s390/qeth: remove QETH_RX_PULL_LEN

2019-12-26T23:23:50+00:00

Since commit f677fcb9aeb6 ("s390/qeth: ensure linear access to packet headers"), the CQ-specific skbs are allocated with a slightly bigger linear part than necessary. Shrink it down to the maximum that's needed by qeth_extract_skb(). Signed-off-by: Julian Wiedmann Signed-off-by: David S. Miller

s390/qeth: use napi_gro_frags() for SG skbs

2019-12-26T23:23:50+00:00

For non-linear packets, get the skb for attaching the page fragments from napi_get_frags() so that it can be recycled during GRO. Signed-off-by: Julian Wiedmann Signed-off-by: David S. Miller

s390/qeth: consolidate RX code

2019-12-26T23:23:50+00:00

To reduce the path length and levels of indirection, move the RX processing from the sub-drivers into the core. Signed-off-by: Julian Wiedmann Signed-off-by: David S. Miller

s390/qeth: fix initialization on old HW

2019-12-25T06:41:06+00:00

I stumbled over an old OSA model that claims to support DIAG_ASSIST, but then rejects the cmd to query its DIAG capabilities. In the old code this was ok, as the returned raw error code was > 0. Now that we translate the raw codes to errnos, the "rc < 0" causes us to fail the initialization of the device. The fix is trivial: don't bail out when the DIAG query fails. Such an error is not critical, we can still use the device (with a slightly reduced set of features). Fixes: 742d4d40831d ("s390/qeth: convert remaining legacy cmd callbacks") Signed-off-by: Julian Wiedmann Signed-off-by: David S. Miller