linux-toradex.git/drivers/net/sfc, branch tegra

ethtool: Centralise validation of ETHTOOL_{G, S}RXFHINDIR parameters

2014-03-30T23:19:57+00:00

Add a new ethtool operation (get_rxfh_indir_size) to get the
indirectional table size.  Use this to validate the user buffer size
before calling get_rxfh_indir or set_rxfh_indir.  Use get_rxnfc to get
the number of RX rings, and validate the contents of the new
indirection table before calling set_rxfh_indir.  Remove this
validation from drivers.

Signed-off-by: Ben Hutchings 
Acked-by: Dimitris Michailidis 
Signed-off-by: David S. Miller

sfc: Use 64-bit writes for TX push where possible

2011-09-15T21:31:31+00:00

This was originally done as part of commit
65f0b417dee94f779ce9b77102b7d73c93723b39 ("sfc: Use write-combining to
reduce TX latency"), but that had to be reverted.

Signed-off-by: Ben Hutchings 
Signed-off-by: David S. Miller

Revert "sfc: Use write-combining to reduce TX latency" and follow-ups

2011-09-15T21:31:28+00:00

This reverts commits 65f0b417dee94f779ce9b77102b7d73c93723b39,
d88d6b05fee3cc78e5b0273eb58c31201dcc6b76,
fcfa060468a4edcf776f0c1211d826d5de1668c1,
747df2258b1b9a2e25929ef496262c339c380009 and
867955f5682f7157fdafe8670804b9f8ea077bc7.

Depending on the processor model, write-combining may result in
reordering that the NIC will not tolerate.  This typically results
in a DMA error event and reset by the driver, logged as:

sfc 0000:0e:00.0: eth2: TX DMA Q reports TX_EV_PKT_ERR.
sfc 0000:0e:00.0: eth2: resetting (ALL)

Signed-off-by: Ben Hutchings 
Signed-off-by: David S. Miller

Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/bwh/sfc-next

2011-07-14T15:43:32+00:00

sfc: Remove 'Communications' after 'Solarflare' in references to hardware

2011-07-13T23:08:38+00:00

Branding can now be abbreviated.

Signed-off-by: Ben Hutchings

sfc: Remove 'Solarstorm' from Kconfig descriptions

2011-07-13T15:10:36+00:00

The 'Solarstorm' brand is being retired and it's redundant with the
company name.

Signed-off-by: Ben Hutchings

sfc: Fix assertions in efx_filter_rfs()

2011-06-24T23:43:50+00:00

This function is intended to assert (when DEBUG is defined) that the
skb header area includes the header fields it's looking at, which RFS
should already have pulled.  But it uses pskb_may_pull(), which will
attempt to pull more data if necesary.  It must instead compare
skb_headlen() with the required length.

Signed-off-by: Ben Hutchings

sfc: Fix Siena mac statistics on big endian platforms

2011-06-24T23:43:49+00:00

[bwh: Use __force in the one place it's needed]
Signed-off-by: Ben Hutchings

sfc: Fix mapping of reset reasons and flags to methods

2011-06-24T23:43:48+00:00

There are certain hardware bugs that may occur on Falcon during normal
operation, that require a reset to recover from.  We try to minimise
disruption by keeping the PHY running, following a reset sequence
labelled as 'invisible'.

Siena does not suffer from these hardware bugs, so we have not
implemented an 'invisible' reset sequence.  However, if a similar
error does occur (due to a hardware fault or software bug) then the
code shared with Falcon will wrongly assume that the PHY is not being
reset.

Since the mapping of reset reasons (internal) and flags (ethtool) to
methods must differ significantly between NIC types, move it into
per-NIC-type functions (replacing the insufficient reset_world_flags
field).

Signed-off-by: Ben Hutchings

sfc: Allow resets to be upgraded; use atomic ops for safety

2011-06-24T23:43:48+00:00

Currently an attempt to schedule any reset is ignored if a reset
is already pending.  This ignores the relative scopes - if the
requested reset is greater in scope then the scheduled reset should
be upgraded accordingly.

There are also some race conditions which could lead to a reset
request being lost.  Deal with them by using atomic operations on a
bitmask.  This also makes tests on reset_pending easier to get right.

Signed-off-by: Ben Hutchings