change wifi driver to cypress

hc

2024-01-05 071106ecf68c401173c58808b1cf5f68cc50d390

 kernel/drivers/net/ethernet/cavium/liquidio/octeon_main.h
..
..
@@ -39,6 +39,7 @@
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 	/** Tasklet structures for this device. */
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 	struct tasklet_struct droq_tasklet;
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 	unsigned long napi_mask;
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+	struct octeon_device *dev;
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 };
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 /** This structure is used by NIC driver to store information required
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@@ -70,6 +71,10 @@
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 void octeon_report_tx_completion_to_bql(void *txq, unsigned int pkts_compl,
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 					unsigned int bytes_compl);
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 void octeon_pf_changed_vf_macaddr(struct octeon_device *oct, u8 *mac);
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+
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+void octeon_schedule_rxq_oom_work(struct octeon_device *oct,
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+				  struct octeon_droq *droq);
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+
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 /** Swap 8B blocks */
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 static inline void octeon_swap_8B_data(u64 *data, u32 blocks)
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 {
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@@ -146,46 +151,70 @@
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 	return 1;
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 }
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153
 
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+/* input parameter:
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+ * sc: pointer to a soft request
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+ * timeout: milli sec which an application wants to wait for the
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+	    response of the request.
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+ *          0: the request will wait until its response gets back
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+ *	       from the firmware within LIO_SC_MAX_TMO_MS milli sec.
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+ *	       It the response does not return within
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+ *	       LIO_SC_MAX_TMO_MS milli sec, lio_process_ordered_list()
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+ *	       will move the request to zombie response list.
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+ *
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+ * return value:
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+ * 0: got the response from firmware for the sc request.
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+ * errno -EINTR: user abort the command.
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+ * errno -ETIME: user spefified timeout value has been expired.
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+ * errno -EBUSY: the response of the request does not return in
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+ *               resonable time (LIO_SC_MAX_TMO_MS).
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+ *               the sc wll be move to zombie response list by
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+ *               lio_process_ordered_list()
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+ *
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+ * A request with non-zero return value, the sc->caller_is_done
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+ *  will be marked 1.
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+ * When getting a request with zero return value, the requestor
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+ *  should mark sc->caller_is_done with 1 after examing the
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+ *  response of sc.
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+ * lio_process_ordered_list() will free the soft command on behalf
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+ * of the soft command requestor.
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+ * This is to fix the possible race condition of both timeout process
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+ * and lio_process_ordered_list()/callback function to free a
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+ * sc strucutre.
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+ */
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 static inline int
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-sleep_cond(wait_queue_head_t *wait_queue, int *condition)
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+wait_for_sc_completion_timeout(struct octeon_device *oct_dev,
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+			       struct octeon_soft_command *sc,
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+			       unsigned long timeout)
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 {
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 	int errno = 0;
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-	wait_queue_entry_t we;
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+	long timeout_jiff;
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-	init_waitqueue_entry(&we, current);
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-	add_wait_queue(wait_queue, &we);
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-	while (!(READ_ONCE(*condition))) {
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-		set_current_state(TASK_INTERRUPTIBLE);
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-		if (signal_pending(current)) {
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-			errno = -EINTR;
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-			goto out;
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-		}
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-		schedule();
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+	if (timeout)
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+		timeout_jiff = msecs_to_jiffies(timeout);
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+	else
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+		timeout_jiff = MAX_SCHEDULE_TIMEOUT;
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+
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+	timeout_jiff =
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+		wait_for_completion_interruptible_timeout(&sc->complete,
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+							  timeout_jiff);
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+	if (timeout_jiff == 0) {
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+		dev_err(&oct_dev->pci_dev->dev, "%s: sc is timeout\n",
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+			__func__);
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+		WRITE_ONCE(sc->caller_is_done, true);
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+		errno = -ETIME;
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+	} else if (timeout_jiff == -ERESTARTSYS) {
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+		dev_err(&oct_dev->pci_dev->dev, "%s: sc is interrupted\n",
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+			__func__);
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+		WRITE_ONCE(sc->caller_is_done, true);
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+		errno = -EINTR;
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+	} else  if (sc->sc_status == OCTEON_REQUEST_TIMEOUT) {
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+		dev_err(&oct_dev->pci_dev->dev, "%s: sc has fatal timeout\n",
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+			__func__);
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+		WRITE_ONCE(sc->caller_is_done, true);
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+		errno = -EBUSY;
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 	}
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-out:
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-	set_current_state(TASK_RUNNING);
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-	remove_wait_queue(wait_queue, &we);
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+
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 	return errno;
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-}
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-
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-/* Gives up the CPU for a timeout period.
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- * Check that the condition is not true before we go to sleep for a
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- * timeout period.
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- */
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-static inline void
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-sleep_timeout_cond(wait_queue_head_t *wait_queue,
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-		   int *condition,
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-		   int timeout)
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-{
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-	wait_queue_entry_t we;
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-
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-	init_waitqueue_entry(&we, current);
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-	add_wait_queue(wait_queue, &we);
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-	set_current_state(TASK_INTERRUPTIBLE);
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-	if (!(*condition))
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-		schedule_timeout(timeout);
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-	set_current_state(TASK_RUNNING);
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-	remove_wait_queue(wait_queue, &we);
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 }
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 #ifndef ROUNDUP4