modify sin led gpio

hc

2024-05-13 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e

 kernel/drivers/usb/storage/scsiglue.c
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@@ -28,6 +28,8 @@
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  * status of a command.
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  */
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+#include <linux/blkdev.h>
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+#include <linux/dma-mapping.h>
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 #include <linux/module.h>
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 #include <linux/mutex.h>
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@@ -38,6 +40,7 @@
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 #include <scsi/scsi_eh.h>
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 #include "usb.h"
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+#include <linux/usb/hcd.h>
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 #include "scsiglue.h"
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 #include "debug.h"
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 #include "transport.h"
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@@ -89,6 +92,7 @@
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 static int slave_configure(struct scsi_device *sdev)
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 {
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 	struct us_data *us = host_to_us(sdev->host);
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+	struct device *dev = us->pusb_dev->bus->sysdev;
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 	/*
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 	 * Many devices have trouble transferring more than 32KB at a time,
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@@ -123,12 +127,20 @@
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 	}
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 	/*
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+	 * The max_hw_sectors should be up to maximum size of a mapping for
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+	 * the device. Otherwise, a DMA API might fail on swiotlb environment.
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+	 */
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+	blk_queue_max_hw_sectors(sdev->request_queue,
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+		min_t(size_t, queue_max_hw_sectors(sdev->request_queue),
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+		      dma_max_mapping_size(dev) >> SECTOR_SHIFT));
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+
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+	/*
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 	 * Some USB host controllers can't do DMA; they have to use PIO.
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-	 * They indicate this by setting their dma_mask to NULL.  For
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-	 * such controllers we need to make sure the block layer sets
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+	 * For such controllers we need to make sure the block layer sets
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 	 * up bounce buffers in addressable memory.
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 	 */
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-	if (!us->pusb_dev->bus->controller->dma_mask)
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+	if (!hcd_uses_dma(bus_to_hcd(us->pusb_dev->bus)) ||
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+			(bus_to_hcd(us->pusb_dev->bus)->localmem_pool != NULL))
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 		blk_queue_bounce_limit(sdev->request_queue, BLK_BOUNCE_HIGH);
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 	/*
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@@ -189,8 +201,11 @@
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 		 */
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 		sdev->skip_ms_page_8 = 1;
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-		/* Some devices don't handle VPD pages correctly */
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-		sdev->skip_vpd_pages = 1;
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+		/*
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+		 * Some devices don't handle VPD pages correctly, so skip vpd
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+		 * pages if not forced by SCSI layer.
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+		 */
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+		sdev->skip_vpd_pages = !sdev->try_vpd_pages;
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 		/* Do not attempt to use REPORT SUPPORTED OPERATION CODES */
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 		sdev->no_report_opcodes = 1;
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@@ -287,7 +302,7 @@
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 	} else {
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 		/*
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-		 * Non-disk-type devices don't need to blacklist any pages
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+		 * Non-disk-type devices don't need to ignore any pages
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 		 * or to force 192-byte transfer lengths for MODE SENSE.
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 		 * But they do need to use MODE SENSE(10).
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 		 */
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@@ -359,8 +374,8 @@
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 	/* check for state-transition errors */
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 	if (us->srb != NULL) {
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-		printk(KERN_ERR USB_STORAGE "Error in %s: us->srb = %p\n",
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-			__func__, us->srb);
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+		dev_err(&us->pusb_intf->dev,
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+			"Error in %s: us->srb = %p\n", __func__, us->srb);
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 		return SCSI_MLQUEUE_HOST_BUSY;
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 	}
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@@ -396,22 +411,25 @@
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  ***********************************************************************/
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 /* Command timeout and abort */
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-static int command_abort(struct scsi_cmnd *srb)
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+static int command_abort_matching(struct us_data *us, struct scsi_cmnd *srb_match)
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 {
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-	struct us_data *us = host_to_us(srb->device->host);
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-
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-	usb_stor_dbg(us, "%s called\n", __func__);
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-
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 	/*
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 	 * us->srb together with the TIMED_OUT, RESETTING, and ABORTING
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 	 * bits are protected by the host lock.
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 	 */
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 	scsi_lock(us_to_host(us));
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-	/* Is this command still active? */
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-	if (us->srb != srb) {
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+	/* is there any active pending command to abort ? */
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+	if (!us->srb) {
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 		scsi_unlock(us_to_host(us));
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 		usb_stor_dbg(us, "-- nothing to abort\n");
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+		return SUCCESS;
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+	}
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+
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+	/* Does the command match the passed srb if any ? */
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+	if (srb_match && us->srb != srb_match) {
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+		scsi_unlock(us_to_host(us));
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+		usb_stor_dbg(us, "-- pending command mismatch\n");
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 		return FAILED;
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 	}
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@@ -434,6 +452,14 @@
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 	return SUCCESS;
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 }
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+static int command_abort(struct scsi_cmnd *srb)
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+{
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+	struct us_data *us = host_to_us(srb->device->host);
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+
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+	usb_stor_dbg(us, "%s called\n", __func__);
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+	return command_abort_matching(us, srb);
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+}
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+
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 /*
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  * This invokes the transport reset mechanism to reset the state of the
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  * device
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@@ -444,6 +470,9 @@
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 	int result;
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 	usb_stor_dbg(us, "%s called\n", __func__);
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+
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+	/* abort any pending command before reset */
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+	command_abort_matching(us, NULL);
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 	/* lock the device pointers and do the reset */
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 	mutex_lock(&(us->dev_mutex));
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@@ -634,13 +663,6 @@
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 	 * and 2048 for USB3 devices.
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 	 */
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 	.max_sectors =                  240,
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-
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-	/*
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-	 * merge commands... this seems to help performance, but
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-	 * periodically someone should test to see which setting is more
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-	 * optimal.
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-	 */
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-	.use_clustering =		1,
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 	/* emulated HBA */
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 	.emulated =			1,