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sfc: Create multiple TX queues

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Create a core TX queue and 2 hardware TX queues for each channel.
If separate_tx_channels is set, create equal numbers of RX and TX
channels instead.

Rewrite the channel and queue iteration macros accordingly.
Eliminate efx_channel::used_flags as redundant.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ben Hutchings
2010-04-28 09:30:43 +00:00
committed by David S. Miller
parent 5298c37f4d
commit a4900ac9f7
8 changed files with 140 additions and 123 deletions
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4
drivers/net/sfc/ethtool.c
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@ -647,7 +647,7 @@ static int efx_ethtool_get_coalesce(struct net_device *net_dev,
efx_for_each_tx_queue(tx_queue, efx) {
channel = tx_queue->channel;
if (channel->irq_moderation < coalesce->tx_coalesce_usecs_irq) {
if (channel->used_flags != EFX_USED_BY_RX_TX)
if (channel->channel < efx->n_rx_channels)
coalesce->tx_coalesce_usecs_irq =
channel->irq_moderation;
else
@ -690,7 +690,7 @@ static int efx_ethtool_set_coalesce(struct net_device *net_dev,
/* If the channel is shared only allow RX parameters to be set */
efx_for_each_tx_queue(tx_queue, efx) {
if ((tx_queue->channel->used_flags == EFX_USED_BY_RX_TX) &&
if ((tx_queue->channel->channel < efx->n_rx_channels) &&
tx_usecs) {
EFX_ERR(efx, "Channel is shared. "
"Only RX coalescing may be set\n");