litmus-rt-ext-res.git/drivers/net/ethernet/ibm, branch EXT-RES

ibmveth: calculate gso_segs for large packets

2017-03-22T11:43:37+00:00

[ Upstream commit 94acf164dc8f1184e8d0737be7125134c2701dbe ]

Include calculations to compute the number of segments
that comprise an aggregated large packet.

Signed-off-by: Thomas Falcon 
Reviewed-by: Marcelo Ricardo Leitner 
Reviewed-by: Jonathan Maxwell 
Signed-off-by: David S. Miller 
Signed-off-by: Sasha Levin 
Signed-off-by: Greg Kroah-Hartman

ibmveth: set correct gso_size and gso_type

2016-12-10T03:47:22+00:00

This patch is based on an earlier one submitted
by Jon Maxwell with the following commit message:

"We recently encountered a bug where a few customers using ibmveth on the
same LPAR hit an issue where a TCP session hung when large receive was
enabled. Closer analysis revealed that the session was stuck because the
one side was advertising a zero window repeatedly.

We narrowed this down to the fact the ibmveth driver did not set gso_size
which is translated by TCP into the MSS later up the stack. The MSS is
used to calculate the TCP window size and as that was abnormally large,
it was calculating a zero window, even although the sockets receive buffer
was completely empty."

We rely on the Virtual I/O Server partition in a pseries
environment to provide the MSS through the TCP header checksum
field. The stipulation is that users should not disable checksum
offloading if rx packet aggregation is enabled through VIOS.

Some firmware offerings provide the MSS in the RX buffer.
This is signalled by a bit in the RX queue descriptor.

Reviewed-by: Brian King 
Reviewed-by: Pradeep Satyanarayana 
Reviewed-by: Marcelo Ricardo Leitner 
Reviewed-by: Jonathan Maxwell 
Reviewed-by: David Dai 
Signed-off-by: Thomas Falcon 
Signed-off-by: David S. Miller

ibmvnic: drop duplicate header seq_file.h

2016-11-26T01:32:10+00:00

Drop duplicate header seq_file.h from ibmvnic.c.

Signed-off-by: Geliang Tang 
Signed-off-by: David S. Miller

ibmvnic: Fix size of debugfs name buffer

2016-11-13T18:42:35+00:00

This mistake was causing debugfs directory creation
failures when multiple ibmvnic devices were probed.

Signed-off-by: Thomas Falcon 
Signed-off-by: David S. Miller

ibmvnic: Unmap ibmvnic_statistics structure

2016-11-13T18:42:35+00:00

This structure was mapped but never subsequently unmapped.

Signed-off-by: Thomas Falcon 
Signed-off-by: David S. Miller

ibmvnic: Start completion queue negotiation at server-provided optimum values

2016-11-09T23:52:41+00:00

Use the opt_* fields to determine the starting point for negotiating the
number of tx/rx completion queues with the vnic server. These contain the
number of queues that the vnic server estimates that it will be able to
allocate. While renegotiation may still occur, using the opt_* fields will
reduce the number of times this needs to happen and will prevent driver
probe timeout on systems using large numbers of ibmvnic client devices per
vnic port.

Signed-off-by: John Allen 
Signed-off-by: David S. Miller

ehea: fix operation state report

2016-11-03T20:25:37+00:00

Currently the ehea driver is missing a call to netif_carrier_off()
before the interface bring-up; this is necessary in order to
initialize the __LINK_STATE_NOCARRIER bit in the net_device state
field. Otherwise, we observe state UNKNOWN on "ip address" command
output.

This patch adds a call to netif_carrier_off() on ehea's net device
open callback.

Reported-by: Xiong Zhou 
Reference-ID: IBM bz #137702, Red Hat bz #1089134
Signed-off-by: Guilherme G. Piccoli 
Signed-off-by: Douglas Miller 
Signed-off-by: David S. Miller

ibmvnic: Fix missing brackets in init_sub_crq_irqs

2016-10-29T21:18:46+00:00

Signed-off-by: Thomas Falcon 
Signed-off-by: David S. Miller

ibmvnic: Fix releasing of sub-CRQ IRQs in interrupt context

2016-10-29T21:18:46+00:00

Schedule these XPORT event tasks in the shared workqueue
so that IRQs are not freed in an interrupt context when
sub-CRQs are released.

Signed-off-by: Thomas Falcon 
Signed-off-by: David S. Miller

Revert "ibmvnic: Fix releasing of sub-CRQ IRQs in interrupt context"

2016-10-29T21:18:17+00:00

This reverts commit 8d7533e5aaad1c94386a8101a36b0617987966b7.

It introduced kbuild failures, new version coming.

Signed-off-by: David S. Miller