Merge "msm: ipa4: Fix to exit from tasklet after processing max packet" (7be42f12) · Commits · e / devices / android_kernel_fairphone_FP4

drivers/platform/msm/ipa/ipa_v3/ipa_dp.c

+11 −0

Original line number	Diff line number	Diff line
		@@ -87,6 +87,8 @@

		#define IPA_QMAP_ID_BYTE 0

		#define IPA_TX_MAX_DESC (20)

		static struct sk_buff *ipa3_get_skb_ipa_rx(unsigned int len, gfp_t flags);
		static void ipa3_replenish_wlan_rx_cache(struct ipa3_sys_context *sys);
		static void ipa3_replenish_rx_cache(struct ipa3_sys_context *sys);
		@@ -212,6 +214,7 @@ static void ipa3_tasklet_write_done(unsigned long data)
		struct ipa3_sys_context *sys;
		struct ipa3_tx_pkt_wrapper *this_pkt;
		bool xmit_done = false;
		unsigned int max_tx_pkt = 0;

		sys = (struct ipa3_sys_context *)data;
		spin_lock_bh(&sys->spinlock);
		@@ -223,9 +226,17 @@ static void ipa3_tasklet_write_done(unsigned long data)
		spin_unlock_bh(&sys->spinlock);
		ipa3_wq_write_done_common(sys, this_pkt);
		spin_lock_bh(&sys->spinlock);
		max_tx_pkt++;
		if (xmit_done)
		break;
		}
		/* If TX packets processing continuously in tasklet other
		* softirqs are not able to run on that core which is leading
		* to watchdog bark. For avoiding these scenarios exit from
		* tasklet after reaching max limit.
		*/
		if (max_tx_pkt == IPA_TX_MAX_DESC)
		break;
		}
		spin_unlock_bh(&sys->spinlock);
		}