iwlwifi: set interrupt coalescing timer range and default (2be76703) · Commits · 戴 / test

drivers/net/wireless/iwlwifi/iwl-core.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -257,8 +257,8 @@ int iwl_hw_nic_init(struct iwl_priv *priv)
		spin_lock_irqsave(&priv->lock, flags);
		priv->cfg->ops->lib->apm_ops.init(priv);

		/* Set interrupt coalescing timer to 512 usecs */
		iwl_write8(priv, CSR_INT_COALESCING, 512 / 32);
		/* Set interrupt coalescing calibration timer to default (512 usecs) */
		iwl_write8(priv, CSR_INT_COALESCING, IWL_HOST_INT_CALIB_TIMEOUT_DEF);

		spin_unlock_irqrestore(&priv->lock, flags);

+15 −0

Original line number	Diff line number	Diff line
		@@ -1011,6 +1011,21 @@ struct iwl_event_log {
		int wraps_more_count;
		};

		/*
		* host interrupt timeout value
		* used with setting interrupt coalescing timer
		* the CSR_INT_COALESCING is an 8 bit register in 32-usec unit
		*
		* default interrupt coalescing timer is 64 x 32 = 2048 usecs
		* default interrupt coalescing calibration timer is 16 x 32 = 512 usecs
		*/
		#define IWL_HOST_INT_TIMEOUT_MAX (0xFF)
		#define IWL_HOST_INT_TIMEOUT_DEF (0x40)
		#define IWL_HOST_INT_TIMEOUT_MIN (0x0)
		#define IWL_HOST_INT_CALIB_TIMEOUT_MAX (0xFF)
		#define IWL_HOST_INT_CALIB_TIMEOUT_DEF (0x10)
		#define IWL_HOST_INT_CALIB_TIMEOUT_MIN (0x0)

		struct iwl_priv {

		/* ieee device used by generic ieee processing code */

+2 −2

Original line number	Diff line number	Diff line
		@@ -473,8 +473,8 @@ int iwl_rx_init(struct iwl_priv priv, struct iwl_rx_queue rxq)
		(rb_timeout << FH_RCSR_RX_CONFIG_REG_IRQ_RBTH_POS)\|
		(rfdnlog << FH_RCSR_RX_CONFIG_RBDCB_SIZE_POS));

		/* Set interrupt coalescing timer to 64 x 32 = 2048 usecs */
		iwl_write8(priv, CSR_INT_COALESCING, 0x40);
		/* Set interrupt coalescing timer to default (2048 usecs) */
		iwl_write8(priv, CSR_INT_COALESCING, IWL_HOST_INT_TIMEOUT_DEF);

		return 0;
		}