diff mbox series

[01/15] net: alteon: Convert tasklet API to new bottom half workqueue mechanism

Message ID 20240621183947.4105278-2-allen.lkml@gmail.com (mailing list archive)
State Changes Requested
Delegated to: Netdev Maintainers
Headers show
Series ethernet: Convert from tasklet to BH workqueue | expand

Checks

Context Check Description
netdev/series_format warning Target tree name not specified in the subject
netdev/tree_selection success Guessed tree name to be net-next, async
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline fail Detected static functions without inline keyword in header files: 1
netdev/build_32bit success Errors and warnings before: 842 this patch: 842
netdev/build_tools success No tools touched, skip
netdev/cc_maintainers fail 5 maintainers not CCed: jes@trained-monkey.org pabeni@redhat.com kuba@kernel.org linux-acenic@sunsite.dk edumazet@google.com
netdev/build_clang success Errors and warnings before: 849 this patch: 849
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 850 this patch: 850
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 109 lines checked
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Allen Pais June 21, 2024, 6:39 p.m. UTC
Migrate tasklet APIs to the new bottom half workqueue mechanism. It
replaces all occurrences of tasklet usage with the appropriate workqueue
APIs throughout the alteon driver. This transition ensures compatibility
with the latest design and enhances performance.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
---
 drivers/net/ethernet/alteon/acenic.c | 26 +++++++++++++-------------
 drivers/net/ethernet/alteon/acenic.h |  8 ++++----
 2 files changed, 17 insertions(+), 17 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/alteon/acenic.c b/drivers/net/ethernet/alteon/acenic.c
index 3d8ac63132fb..9e6f91df2ba0 100644
--- a/drivers/net/ethernet/alteon/acenic.c
+++ b/drivers/net/ethernet/alteon/acenic.c
@@ -1560,9 +1560,9 @@  static void ace_watchdog(struct net_device *data, unsigned int txqueue)
 }
 
 
-static void ace_tasklet(struct tasklet_struct *t)
+static void ace_bh_work(struct work_struct *work)
 {
-	struct ace_private *ap = from_tasklet(ap, t, ace_tasklet);
+	struct ace_private *ap = from_work(ap, work, ace_bh_work);
 	struct net_device *dev = ap->ndev;
 	int cur_size;
 
@@ -1595,7 +1595,7 @@  static void ace_tasklet(struct tasklet_struct *t)
 #endif
 		ace_load_jumbo_rx_ring(dev, RX_JUMBO_SIZE - cur_size);
 	}
-	ap->tasklet_pending = 0;
+	ap->bh_work_pending = 0;
 }
 
 
@@ -1617,7 +1617,7 @@  static void ace_dump_trace(struct ace_private *ap)
  *
  * Loading rings is safe without holding the spin lock since this is
  * done only before the device is enabled, thus no interrupts are
- * generated and by the interrupt handler/tasklet handler.
+ * generated and by the interrupt handler/bh handler.
  */
 static void ace_load_std_rx_ring(struct net_device *dev, int nr_bufs)
 {
@@ -2160,7 +2160,7 @@  static irqreturn_t ace_interrupt(int irq, void *dev_id)
 	 */
 	if (netif_running(dev)) {
 		int cur_size;
-		int run_tasklet = 0;
+		int run_bh_work = 0;
 
 		cur_size = atomic_read(&ap->cur_rx_bufs);
 		if (cur_size < RX_LOW_STD_THRES) {
@@ -2172,7 +2172,7 @@  static irqreturn_t ace_interrupt(int irq, void *dev_id)
 				ace_load_std_rx_ring(dev,
 						     RX_RING_SIZE - cur_size);
 			} else
-				run_tasklet = 1;
+				run_bh_work = 1;
 		}
 
 		if (!ACE_IS_TIGON_I(ap)) {
@@ -2188,7 +2188,7 @@  static irqreturn_t ace_interrupt(int irq, void *dev_id)
 					ace_load_mini_rx_ring(dev,
 							      RX_MINI_SIZE - cur_size);
 				} else
-					run_tasklet = 1;
+					run_bh_work = 1;
 			}
 		}
 
@@ -2205,12 +2205,12 @@  static irqreturn_t ace_interrupt(int irq, void *dev_id)
 					ace_load_jumbo_rx_ring(dev,
 							       RX_JUMBO_SIZE - cur_size);
 				} else
-					run_tasklet = 1;
+					run_bh_work = 1;
 			}
 		}
-		if (run_tasklet && !ap->tasklet_pending) {
-			ap->tasklet_pending = 1;
-			tasklet_schedule(&ap->ace_tasklet);
+		if (run_bh_work && !ap->bh_work_pending) {
+			ap->bh_work_pending = 1;
+			queue_work(system_bh_wq, &ap->ace_bh_work);
 		}
 	}
 
@@ -2267,7 +2267,7 @@  static int ace_open(struct net_device *dev)
 	/*
 	 * Setup the bottom half rx ring refill handler
 	 */
-	tasklet_setup(&ap->ace_tasklet, ace_tasklet);
+	INIT_WORK(&ap->ace_bh_work, ace_bh_work);
 	return 0;
 }
 
@@ -2301,7 +2301,7 @@  static int ace_close(struct net_device *dev)
 	cmd.idx = 0;
 	ace_issue_cmd(regs, &cmd);
 
-	tasklet_kill(&ap->ace_tasklet);
+	cancel_work_sync(&ap->ace_bh_work);
 
 	/*
 	 * Make sure one CPU is not processing packets while
diff --git a/drivers/net/ethernet/alteon/acenic.h b/drivers/net/ethernet/alteon/acenic.h
index ca5ce0cbbad1..0e45a97b9c9b 100644
--- a/drivers/net/ethernet/alteon/acenic.h
+++ b/drivers/net/ethernet/alteon/acenic.h
@@ -2,7 +2,7 @@ 
 #ifndef _ACENIC_H_
 #define _ACENIC_H_
 #include <linux/interrupt.h>
-
+#include <linux/workqueue.h>
 
 /*
  * Generate TX index update each time, when TX ring is closed.
@@ -667,8 +667,8 @@  struct ace_private
 	struct rx_desc		*rx_mini_ring;
 	struct rx_desc		*rx_return_ring;
 
-	int			tasklet_pending, jumbo;
-	struct tasklet_struct	ace_tasklet;
+	int			bh_work_pending, jumbo;
+	struct work_struct	ace_bh_work;
 
 	struct event		*evt_ring;
 
@@ -776,7 +776,7 @@  static int ace_open(struct net_device *dev);
 static netdev_tx_t ace_start_xmit(struct sk_buff *skb,
 				  struct net_device *dev);
 static int ace_close(struct net_device *dev);
-static void ace_tasklet(struct tasklet_struct *t);
+static void ace_bh_work(struct work_struct *work);
 static void ace_dump_trace(struct ace_private *ap);
 static void ace_set_multicast_list(struct net_device *dev);
 static int ace_change_mtu(struct net_device *dev, int new_mtu);