BMC/Intel-BMC/linux.git/drivers/net/ethernet/sfc, branch dev-4.6

sfc: on MC reset, clear PIO buffer linkage in TXQs

2016-06-24T17:22:00+00:00

[ Upstream commit c0795bf64cba4d1b796fdc5b74b33772841ed1bb ] Otherwise, if we fail to allocate new PIO buffers, our TXQs will try to use the old ones, which aren't there any more. Fixes: 183233bec810 "sfc: Allocate and link PIO buffers; map them with write-combining" Signed-off-by: Edward Cree Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman

sfc: disable RSS when unsupported

2016-04-28T18:21:15+00:00

When certain firmware variants are selected (via the sfboot utility) the SFC7000 and SFC8000 series NICs don't support RSS. The driver still tries (and fails) to insert filters with the RSS flag, and the NIC fails to pass traffic. When the firmware reports RSS_LIMITED suppress allocating a default RSS context. The absence of an RSS context is picked up in filter insertion and RSS flags are discarded. Signed-off-by: Bert Kenward Signed-off-by: David S. Miller

net: relax setup_tc ndo op handle restriction

2016-03-03T21:25:15+00:00

I added this check in setup_tc to multiple drivers, if (handle != TC_H_ROOT || tc->type != TC_SETUP_MQPRIO) Unfortunately restricting to TC_H_ROOT like this breaks the old instantiation of mqprio to setup a hardware qdisc. This patch relaxes the test to only check the type to make it equivalent to the check before I broke it. With this the old instantiation continues to work. A good smoke test is to setup mqprio with, # tc qdisc add dev eth4 root mqprio num_tc 8 \ map 0 1 2 3 4 5 6 7 \ queues 0@0 1@1 2@2 3@3 4@4 5@5 6@6 7@7 Fixes: e4c6734eaab9 ("net: rework ndo tc op to consume additional qdisc handle paramete") Reported-by: Singh Krishneil Reported-by: Jake Keller CC: Murali Karicheri CC: Shradha Shah CC: Or Gerlitz CC: Ariel Elior CC: Jeff Kirsher CC: Bruce Allan CC: Jesse Brandeburg CC: Don Skidmore Signed-off-by: John Fastabend Signed-off-by: David S. Miller

net: rework setup_tc ndo op to consume general tc operand

2016-02-17T14:47:35+00:00

This patch updates setup_tc so we can pass additional parameters into the ndo op in a generic way. To do this we provide structured union and type flag. This lets each classifier and qdisc provide its own set of attributes without having to add new ndo ops or grow the signature of the callback. Signed-off-by: John Fastabend Acked-by: Jiri Pirko Acked-by: Jamal Hadi Salim Signed-off-by: David S. Miller

net: rework ndo tc op to consume additional qdisc handle parameter

2016-02-17T14:47:35+00:00

The ndo_setup_tc() op was added to support drivers offloading tx qdiscs however only support for mqprio was ever added. So we only ever added support for passing the number of traffic classes to the driver. This patch generalizes the ndo_setup_tc op so that a handle can be provided to indicate if the offload is for ingress or egress or potentially even child qdiscs. CC: Murali Karicheri CC: Shradha Shah CC: Or Gerlitz CC: Ariel Elior CC: Jeff Kirsher CC: Bruce Allan CC: Jesse Brandeburg CC: Don Skidmore Signed-off-by: John Fastabend Acked-by: Jiri Pirko Acked-by: Jamal Hadi Salim Signed-off-by: David S. Miller

sfc: implement IPv6 NFC (and IPV4_USER_FLOW)

2016-02-11T12:16:18+00:00

Signed-off-by: Edward Cree Reviewed-by: Ben Hutchings Signed-off-by: David S. Miller

sfc: Downgrade or remove some error messages

2015-12-24T03:06:39+00:00

Depending on configuration the NIC may return errors for unprivileged functions and/or VFs. Where these are expected and handled, reduce the level of any output. Signed-off-by: Bert Kenward Signed-off-by: David S. Miller

sfc: Downgrade EPERM messages from MCDI to debug

2015-12-24T03:06:39+00:00

When running in an unprivileged function we expect some MC commands to fail with permission errors. To avoid log spew downgrade these to debug only. Signed-off-by: Bert Kenward Signed-off-by: David S. Miller

sfc: Make failed filter removal less noisy

2015-12-24T03:06:39+00:00

There are situations - mostly reset related - where our view of the filter table differs from the hardware. In this case we may try and remove filters that aren't actually installed. This isn't that interesting in most situations, so downgrade the logging. Signed-off-by: Bert Kenward Signed-off-by: David S. Miller

sfc: Handle MCDI proxy authorisation

2015-12-24T03:06:39+00:00

For unprivileged functions operations can be authorised by an admin function. Extra steps are introduced to the MCDI protocol in this situation - the initial response from the MCDI tells us that the operation has been deferred, and we must retry when told. We then receive an event telling us to retry. Note that this provides only the functionality for the unprivileged functions, not the handling of the administrative side. Signed-off-by: Bert Kenward Signed-off-by: David S. Miller