git: f07b267d8cc8 - main - smartpqi: Change alignment for dma tags

The branch main has been updated by imp:

URL: https://cgit.FreeBSD.org/src/commit/?id=f07b267d8cc87e88be3c78aa69504b5ebc6571ee

commit f07b267d8cc87e88be3c78aa69504b5ebc6571ee
Author:     John Hall <john.hall@microchip.com>
AuthorDate: 2023-10-19 03:10:58 +0000
Commit:     Warner Losh <imp@FreeBSD.org>
CommitDate: 2023-10-19 03:12:27 +0000

    smartpqi: Change alignment for dma tags
    
    Problem: Under certain I/O conditions, a program doing large block disk
    reads can cause a controller to crash.
    
    Root Cause: The SCSI read request and destination address in the BDMA
    descriptor is incorrect, causing the BDMA engine in the controller to
    assert.
    
    Fix: Change the alignment for creating bus_dma_tags in the driver from
    PAGE_SIZE (4k) to 1, which allows the controller to manage it's own
    address range for BDMA transactions.
    
    Risk: Medium
    
    Exposure: This reverts a change first made to support NVMe drives on
    Excalibur. At that time a 4k alignment was necessary. This no longer
    seems to be the case.
    
    PR: 259541
    Reported by: Ka Ho Ng <khng@freebsd.org>
    Reviewed by: imp
    Differential Revision:  https://reviews.freebsd.org/D41619
---
 sys/dev/smartpqi/smartpqi_main.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sys/dev/smartpqi/smartpqi_main.c b/sys/dev/smartpqi/smartpqi_main.c
index e79a6f0a173f..402841bbf4d6 100644
--- a/sys/dev/smartpqi/smartpqi_main.c
+++ b/sys/dev/smartpqi/smartpqi_main.c
@@ -629,8 +629,8 @@ smartpqi_attach(device_t dev)
          * Create DMA tag for mapping buffers into controller-addressable space.
          */
         if (bus_dma_tag_create(softs->os_specific.pqi_parent_dmat,/* parent */
-				PAGE_SIZE, 0,		/* algnmnt, boundary */
-				BUS_SPACE_MAXADDR,/* lowaddr */
+				1, 0,			/* algnmnt, boundary */
+				BUS_SPACE_MAXADDR,	/* lowaddr */
 				BUS_SPACE_MAXADDR,	/* highaddr */
 				NULL, NULL,		/* filter, filterarg */
 				(bus_size_t)softs->pqi_cap.max_sg_elem*PAGE_SIZE,/* maxsize */