Call efx_set_channels() before efx->type->dimension_resources()

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[ Upstream commit 52ad762b85 ]

When using the "separate_tx_channels=1" module parameter, the TX queues are
initially numbered starting from the first TX-only channel number (after all the
RX-only channels).  efx_set_channels() renumbers the queues so that they are
indexed from zero.

On EF10, the TX queues need to be relabelled in this way before calling the
dimension_resources NIC type operation, otherwise the TX queue PIO buffers can be
linked to the wrong VIs when using "separate_tx_channels=1".

Added comments to explain UC/WC mappings for PIO buffers

Signed-off-by: Shradha Shah <sshah@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

This commit is contained in:

Daniel Pieczko 2014-04-01 13:10:34 +01:00 • committed by Greg Kroah-Hartman

parent 7caaadd87d

commit 98fa11217e

2 changed files with 9 additions and 1 deletions

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7

drivers/net/ethernet/sfc/ef10.c

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3

drivers/net/ethernet/sfc/efx.c

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