[SCSI] fusion - mptctl -adding asyn event notification support (ea5a7a82) · Commits · e / devices / android_kernel_fairphone_FP4

drivers/message/fusion/mptbase.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -616,6 +616,7 @@ typedef struct _MPT_ADAPTER
		* increments by 32 bytes
		*/
		int errata_flag_1064;
		int aen_event_read_flag; /* flag to indicate event log was read*/
		u8 FirstWhoInit;
		u8 upload_fw; /* If set, do a fw upload */
		u8 reload_fw; /* Force a FW Reload on next reset */

drivers/message/fusion/mptctl.c

+79 −0

Original line number	Diff line number	Diff line
		@@ -136,6 +136,12 @@ static void mptctl_free_tm_flags(MPT_ADAPTER *ioc);
		*/
		static int mptctl_ioc_reset(MPT_ADAPTER *ioc, int reset_phase);

		/*
		* Event Handler function
		*/
		static int mptctl_event_process(MPT_ADAPTER ioc, EventNotificationReply_t pEvReply);
		struct fasync_struct *async_queue=NULL;

		/=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=/
		/*
		* Scatter gather list (SGL) sizes and limits...
		@@ -471,6 +477,69 @@ mptctl_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
		return 1;
		}

		/=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=/
		/* ASYNC Event Notification Support */
		static int
		mptctl_event_process(MPT_ADAPTER ioc, EventNotificationReply_t pEvReply)
		{
		u8 event;

		event = le32_to_cpu(pEvReply->Event) & 0xFF;

		dctlprintk(("%s() called\n", __FUNCTION__));
		if(async_queue == NULL)
		return 1;

		/* Raise SIGIO for persistent events.
		* TODO - this define is not in MPI spec yet,
		* but they plan to set it to 0x21
		*/
		if (event == 0x21 ) {
		ioc->aen_event_read_flag=1;
		dctlprintk(("Raised SIGIO to application\n"));
		devtprintk(("Raised SIGIO to application\n"));
		kill_fasync(&async_queue, SIGIO, POLL_IN);
		return 1;
		}

		/* This flag is set after SIGIO was raised, and
		* remains set until the application has read
		* the event log via ioctl=MPTEVENTREPORT
		*/
		if(ioc->aen_event_read_flag)
		return 1;

		/* Signal only for the events that are
		* requested for by the application
		*/
		if (ioc->events && (ioc->eventTypes & ( 1 << event))) {
		ioc->aen_event_read_flag=1;
		dctlprintk(("Raised SIGIO to application\n"));
		devtprintk(("Raised SIGIO to application\n"));
		kill_fasync(&async_queue, SIGIO, POLL_IN);
		}
		return 1;
		}

		static int
		mptctl_fasync(int fd, struct file *filep, int mode)
		{
		MPT_ADAPTER *ioc;

		list_for_each_entry(ioc, &ioc_list, list)
		ioc->aen_event_read_flag=0;

		dctlprintk(("%s() called\n", __FUNCTION__));
		return fasync_helper(fd, filep, mode, &async_queue);
		}

		static int
		mptctl_release(struct inode inode, struct file filep)
		{
		dctlprintk(("%s() called\n", __FUNCTION__));
		return fasync_helper(-1, filep, 0, &async_queue);
		}

		/=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=/
		/*
		* MPT ioctl handler
		@@ -1603,6 +1672,9 @@ mptctl_eventreport (unsigned long arg)
		if ((max < 1) \|\| !ioc->events)
		return -ENODATA;

		/* reset this flag so SIGIO can restart */
		ioc->aen_event_read_flag=0;

		/* Copy the data from kernel memory to user memory
		*/
		numBytes = max * sizeof(MPT_IOCTL_EVENTS);
		@@ -2649,6 +2721,8 @@ mptctl_hp_targetinfo(unsigned long arg)
		static struct file_operations mptctl_fops = {
		.owner = THIS_MODULE,
		.llseek = no_llseek,
		.release = mptctl_release,
		.fasync = mptctl_fasync,
		.unlocked_ioctl = mptctl_ioctl,
		#ifdef CONFIG_COMPAT
		.compat_ioctl = compat_mpctl_ioctl,
		@@ -2893,6 +2967,11 @@ static int __init mptctl_init(void)
		/* FIXME! */
		}

		if (mpt_event_register(mptctl_id, mptctl_event_process) == 0) {
		devtprintk((KERN_INFO MYNAM
		": Registered for IOC event notifications\n"));
		}

		return 0;

		out_fail: