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Initialize the whole message unit's DMA buffer to zero, this fixes a panic

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during boot when ARC1200 is being used with certain motherboard models.

This commit brings the driver to the same state of vendor's 1.20.00.16
release.  Many thanks to Areca for their continued support to FreeBSD.

Reported by:	Jirka Mikulas <jiri mikulas com>
Submitted by:	Erich Chen (Areca)
Obtained from:	ftp://ftp.areca.com.tw/RaidCards/AP_Drivers/FreeBSD/DRIVER/SourceCode/arcmsr-freebsd-1.20.00.16-91010.zip
MFC after:	3 days
This commit is contained in:
Xin LI 2009-11-09 07:28:29 +00:00
parent 6f5c96c41d
commit 641182ba04
2 changed files with 4 additions and 2 deletions
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4
sys/dev/arcmsr/arcmsr.c
View File

@ -55,6 +55,8 @@
** 1.20.00.14 02/05/2007 Erich Chen bug fix for incorrect ccb_h.status report
** and cause g_vfs_done() read write error
** 1.20.00.15 10/10/2007 Erich Chen support new RAID adapter type ARC120x
** 1.20.00.16 10/10/2009 Erich Chen Bug fix for RAID adapter type ARC120x
** bus_dmamem_alloc() with BUS_DMA_ZERO
******************************************************************************************
* $FreeBSD$
*/
@ -2903,7 +2905,7 @@ static u_int32_t arcmsr_initialize(device_t dev)
}
/* Allocation for our srbs */
if(bus_dmamem_alloc(acb->srb_dmat, (void **)&acb->uncacheptr
, BUS_DMA_WAITOK | BUS_DMA_COHERENT, &acb->srb_dmamap) != 0) {
, BUS_DMA_WAITOK | BUS_DMA_COHERENT | BUS_DMA_ZERO, &acb->srb_dmamap) != 0) {
bus_dma_tag_destroy(acb->srb_dmat);
bus_dma_tag_destroy(acb->dm_segs_dmat);
bus_dma_tag_destroy(acb->parent_dmat);

2
sys/dev/arcmsr/arcmsr.h
View File

@ -37,7 +37,7 @@
**************************************************************************
* $FreeBSD$
*/
#define ARCMSR_DRIVER_VERSION "Driver Version 1.20.00.15 2007-10-07"
#define ARCMSR_DRIVER_VERSION "Driver Version 1.20.00.16 2009-10-10"
#define ARCMSR_SCSI_INITIATOR_ID 255
#define ARCMSR_DEV_SECTOR_SIZE 512
#define ARCMSR_MAX_XFER_SECTORS 4096