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authorDr. David Alan Gilbert <linux@treblig.org>2024-11-03 19:41:49 +0000
committerJakub Kicinski <kuba@kernel.org>2024-11-04 18:12:56 -0800
commitb356b9170815f822394667010d478d53901ff581 (patch)
tree704c9dfebd5a193a6a6f56eb1fd75e4f53a595a3
parent690e50dd69ee48e43e0f7c42396487da1b81be14 (diff)
net: ena: Remove autopolling mode
This manually reverts commit a4e262cde3cd ("net: ena: allow automatic fallback to polling mode") which is unused. (I did it manually because there are other minor comment and function changes surrounding it). Build tested only. Suggested-by: David Arinzon <darinzon@amazon.com> Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org> Link: https://patch.msgid.link/20241103194149.293456-1-linux@treblig.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
-rw-r--r--drivers/net/ethernet/amazon/ena/ena_com.c25
-rw-r--r--drivers/net/ethernet/amazon/ena/ena_com.h14
2 files changed, 5 insertions, 34 deletions
diff --git a/drivers/net/ethernet/amazon/ena/ena_com.c b/drivers/net/ethernet/amazon/ena/ena_com.c
index d958cda9e58b..b23331ea2478 100644
--- a/drivers/net/ethernet/amazon/ena/ena_com.c
+++ b/drivers/net/ethernet/amazon/ena/ena_com.c
@@ -763,25 +763,16 @@ static int ena_com_wait_and_process_admin_cq_interrupts(struct ena_comp_ctx *com
if (comp_ctx->status == ENA_CMD_COMPLETED) {
netdev_err(admin_queue->ena_dev->net_device,
- "The ena device sent a completion but the driver didn't receive a MSI-X interrupt (cmd %d), autopolling mode is %s\n",
- comp_ctx->cmd_opcode, admin_queue->auto_polling ? "ON" : "OFF");
- /* Check if fallback to polling is enabled */
- if (admin_queue->auto_polling)
- admin_queue->polling = true;
+ "The ena device sent a completion but the driver didn't receive a MSI-X interrupt (cmd %d)\n",
+ comp_ctx->cmd_opcode);
} else {
netdev_err(admin_queue->ena_dev->net_device,
"The ena device didn't send a completion for the admin cmd %d status %d\n",
comp_ctx->cmd_opcode, comp_ctx->status);
}
- /* Check if shifted to polling mode.
- * This will happen if there is a completion without an interrupt
- * and autopolling mode is enabled. Continuing normal execution in such case
- */
- if (!admin_queue->polling) {
- admin_queue->running_state = false;
- ret = -ETIME;
- goto err;
- }
+ admin_queue->running_state = false;
+ ret = -ETIME;
+ goto err;
}
ret = ena_com_comp_status_to_errno(admin_queue, comp_ctx->comp_status);
@@ -1650,12 +1641,6 @@ void ena_com_set_admin_polling_mode(struct ena_com_dev *ena_dev, bool polling)
ena_dev->admin_queue.polling = polling;
}
-void ena_com_set_admin_auto_polling_mode(struct ena_com_dev *ena_dev,
- bool polling)
-{
- ena_dev->admin_queue.auto_polling = polling;
-}
-
int ena_com_mmio_reg_read_request_init(struct ena_com_dev *ena_dev)
{
struct ena_com_mmio_read *mmio_read = &ena_dev->mmio_read;
diff --git a/drivers/net/ethernet/amazon/ena/ena_com.h b/drivers/net/ethernet/amazon/ena/ena_com.h
index a372c5e768a7..975876cfe720 100644
--- a/drivers/net/ethernet/amazon/ena/ena_com.h
+++ b/drivers/net/ethernet/amazon/ena/ena_com.h
@@ -224,9 +224,6 @@ struct ena_com_admin_queue {
/* Indicate if the admin queue should poll for completion */
bool polling;
- /* Define if fallback to polling mode should occur */
- bool auto_polling;
-
u16 curr_cmd_id;
/* Indicate that the ena was initialized and can
@@ -493,17 +490,6 @@ bool ena_com_get_admin_running_state(struct ena_com_dev *ena_dev);
*/
void ena_com_set_admin_polling_mode(struct ena_com_dev *ena_dev, bool polling);
-/* ena_com_set_admin_auto_polling_mode - Enable autoswitch to polling mode
- * @ena_dev: ENA communication layer struct
- * @polling: Enable/Disable polling mode
- *
- * Set the autopolling mode.
- * If autopolling is on:
- * In case of missing interrupt when data is available switch to polling.
- */
-void ena_com_set_admin_auto_polling_mode(struct ena_com_dev *ena_dev,
- bool polling);
-
/* ena_com_admin_q_comp_intr_handler - admin queue interrupt handler
* @ena_dev: ENA communication layer struct
*