sfc: Fix TX queue numbering when separate_tx_channels=1

This option appears to have been broken by commit
8313aca38b3937947fffebca6e34bac8e24300c8 ('sfc: Allocate each channel
separately, along with its RX and TX queues').

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c
index 38a55e9e89e..796c47e03f6 100644
--- a/drivers/net/sfc/efx.c
+++ b/drivers/net/sfc/efx.c
@@ -1319,8 +1319,20 @@ static void efx_remove_interrupts(struct efx_nic *efx)
 
 static void efx_set_channels(struct efx_nic *efx)
 {
+        struct efx_channel *channel;
+        struct efx_tx_queue *tx_queue;
+
         efx->tx_channel_offset =
                 separate_tx_channels ? efx->n_channels - efx->n_tx_channels : 0;
+
+        /* We need to adjust the TX queue numbers if we have separate
+         * RX-only and TX-only channels.
+         */
+        efx_for_each_channel(channel, efx) {
+                efx_for_each_channel_tx_queue(tx_queue, channel)
+                        tx_queue->queue -= (efx->tx_channel_offset *
+                                            EFX_TXQ_TYPES);
+        }
 }
 
 static int efx_probe_nic(struct efx_nic *efx)