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Message-ID: <1ff33bf5-dacc-fc8f-42ea-bf1ba542de15@solarflare.com>
Date: Wed, 1 Jul 2020 15:54:32 +0100
From: Edward Cree <ecree@...arflare.com>
To: <linux-net-drivers@...arflare.com>, <davem@...emloft.net>
CC: <netdev@...r.kernel.org>
Subject: [PATCH net-next 10/15] sfc: commonise efx_fini_dmaq
Signed-off-by: Edward Cree <ecree@...arflare.com>
---
drivers/net/ethernet/sfc/ef10.c | 42 ++---------------------
drivers/net/ethernet/sfc/mcdi_functions.c | 38 ++++++++++++++++++++
drivers/net/ethernet/sfc/mcdi_functions.h | 1 +
3 files changed, 41 insertions(+), 40 deletions(-)
diff --git a/drivers/net/ethernet/sfc/ef10.c b/drivers/net/ethernet/sfc/ef10.c
index 790a1f516a15..788a562212b1 100644
--- a/drivers/net/ethernet/sfc/ef10.c
+++ b/drivers/net/ethernet/sfc/ef10.c
@@ -3117,44 +3117,6 @@ static void efx_ef10_ev_test_generate(struct efx_channel *channel)
netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
}
-static int efx_ef10_fini_dmaq(struct efx_nic *efx)
-{
- struct efx_tx_queue *tx_queue;
- struct efx_rx_queue *rx_queue;
- struct efx_channel *channel;
- int pending;
-
- /* If the MC has just rebooted, the TX/RX queues will have already been
- * torn down, but efx->active_queues needs to be set to zero.
- */
- if (efx->must_realloc_vis) {
- atomic_set(&efx->active_queues, 0);
- return 0;
- }
-
- /* Do not attempt to write to the NIC during EEH recovery */
- if (efx->state != STATE_RECOVERY) {
- efx_for_each_channel(channel, efx) {
- efx_for_each_channel_rx_queue(rx_queue, channel)
- efx_mcdi_rx_fini(rx_queue);
- efx_for_each_channel_tx_queue(tx_queue, channel)
- efx_mcdi_tx_fini(tx_queue);
- }
-
- wait_event_timeout(efx->flush_wq,
- atomic_read(&efx->active_queues) == 0,
- msecs_to_jiffies(EFX_MAX_FLUSH_TIME));
- pending = atomic_read(&efx->active_queues);
- if (pending) {
- netif_err(efx, hw, efx->net_dev, "failed to flush %d queues\n",
- pending);
- return -ETIMEDOUT;
- }
- }
-
- return 0;
-}
-
static void efx_ef10_prepare_flr(struct efx_nic *efx)
{
atomic_set(&efx->active_queues, 0);
@@ -4029,7 +3991,7 @@ const struct efx_nic_type efx_hunt_a0_vf_nic_type = {
.reset = efx_ef10_reset,
.probe_port = efx_mcdi_port_probe,
.remove_port = efx_mcdi_port_remove,
- .fini_dmaq = efx_ef10_fini_dmaq,
+ .fini_dmaq = efx_fini_dmaq,
.prepare_flr = efx_ef10_prepare_flr,
.finish_flr = efx_port_dummy_op_void,
.describe_stats = efx_ef10_describe_stats,
@@ -4137,7 +4099,7 @@ const struct efx_nic_type efx_hunt_a0_nic_type = {
.reset = efx_ef10_reset,
.probe_port = efx_mcdi_port_probe,
.remove_port = efx_mcdi_port_remove,
- .fini_dmaq = efx_ef10_fini_dmaq,
+ .fini_dmaq = efx_fini_dmaq,
.prepare_flr = efx_ef10_prepare_flr,
.finish_flr = efx_port_dummy_op_void,
.describe_stats = efx_ef10_describe_stats,
diff --git a/drivers/net/ethernet/sfc/mcdi_functions.c b/drivers/net/ethernet/sfc/mcdi_functions.c
index b3a8aa88db06..92b9a741c286 100644
--- a/drivers/net/ethernet/sfc/mcdi_functions.c
+++ b/drivers/net/ethernet/sfc/mcdi_functions.c
@@ -341,6 +341,44 @@ void efx_mcdi_rx_fini(struct efx_rx_queue *rx_queue)
outbuf, outlen, rc);
}
+int efx_fini_dmaq(struct efx_nic *efx)
+{
+ struct efx_tx_queue *tx_queue;
+ struct efx_rx_queue *rx_queue;
+ struct efx_channel *channel;
+ int pending;
+
+ /* If the MC has just rebooted, the TX/RX queues will have already been
+ * torn down, but efx->active_queues needs to be set to zero.
+ */
+ if (efx->must_realloc_vis) {
+ atomic_set(&efx->active_queues, 0);
+ return 0;
+ }
+
+ /* Do not attempt to write to the NIC during EEH recovery */
+ if (efx->state != STATE_RECOVERY) {
+ efx_for_each_channel(channel, efx) {
+ efx_for_each_channel_rx_queue(rx_queue, channel)
+ efx_mcdi_rx_fini(rx_queue);
+ efx_for_each_channel_tx_queue(tx_queue, channel)
+ efx_mcdi_tx_fini(tx_queue);
+ }
+
+ wait_event_timeout(efx->flush_wq,
+ atomic_read(&efx->active_queues) == 0,
+ msecs_to_jiffies(EFX_MAX_FLUSH_TIME));
+ pending = atomic_read(&efx->active_queues);
+ if (pending) {
+ netif_err(efx, hw, efx->net_dev, "failed to flush %d queues\n",
+ pending);
+ return -ETIMEDOUT;
+ }
+ }
+
+ return 0;
+}
+
int efx_mcdi_window_mode_to_stride(struct efx_nic *efx, u8 vi_window_mode)
{
switch (vi_window_mode) {
diff --git a/drivers/net/ethernet/sfc/mcdi_functions.h b/drivers/net/ethernet/sfc/mcdi_functions.h
index ca4a5ac1a66b..687be8b00cd8 100644
--- a/drivers/net/ethernet/sfc/mcdi_functions.h
+++ b/drivers/net/ethernet/sfc/mcdi_functions.h
@@ -26,6 +26,7 @@ int efx_mcdi_rx_probe(struct efx_rx_queue *rx_queue);
void efx_mcdi_rx_init(struct efx_rx_queue *rx_queue);
void efx_mcdi_rx_remove(struct efx_rx_queue *rx_queue);
void efx_mcdi_rx_fini(struct efx_rx_queue *rx_queue);
+int efx_fini_dmaq(struct efx_nic *efx);
int efx_mcdi_window_mode_to_stride(struct efx_nic *efx, u8 vi_window_mode);
int efx_get_pf_index(struct efx_nic *efx, unsigned int *pf_index);
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