Module Name:    src
Committed By:   jakllsch
Date:           Mon Apr 24 21:14:32 UTC 2017

Modified Files:
        src/sys/dev/ic: siisata.c

Log Message:
Fix PRB blanking, so as not to stomp on the feet of neighboring slots.
Also, don't blank some PRB fields twice.

[:U+1F633:]


To generate a diff of this commit:
cvs rdiff -u -r1.32 -r1.33 src/sys/dev/ic/siisata.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

Modified files:

Index: src/sys/dev/ic/siisata.c
diff -u src/sys/dev/ic/siisata.c:1.32 src/sys/dev/ic/siisata.c:1.33
--- src/sys/dev/ic/siisata.c:1.32	Mon Apr 24 13:19:50 2017
+++ src/sys/dev/ic/siisata.c	Mon Apr 24 21:14:32 2017
@@ -1,4 +1,4 @@
-/* $NetBSD: siisata.c,v 1.32 2017/04/24 13:19:50 jakllsch Exp $ */
+/* $NetBSD: siisata.c,v 1.33 2017/04/24 21:14:32 jakllsch Exp $ */
 
 /* from ahcisata_core.c */
 
@@ -79,7 +79,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: siisata.c,v 1.32 2017/04/24 13:19:50 jakllsch Exp $");
+__KERNEL_RCSID(0, "$NetBSD: siisata.c,v 1.33 2017/04/24 21:14:32 jakllsch Exp $");
 
 #include <sys/types.h>
 #include <sys/malloc.h>
@@ -558,7 +558,7 @@ siisata_reset_drive(struct ata_drive_dat
 		DELAY(10);
 
 	prb = schp->sch_prb[slot];
-	memset(prb, 0, sizeof(struct siisata_prb));
+	memset(prb, 0, SIISATA_CMD_SIZE);
 	prb->prb_control =
 	    htole16(PRB_CF_SOFT_RESET | PRB_CF_INTERRUPT_MASK);
 	KASSERT(drvp->drive <= PMP_PORT_CTL);
@@ -696,7 +696,7 @@ siisata_probe_drive(struct ata_channel *
 		    & PR_PS_PORT_READY))
 			DELAY(10);
 		prb = schp->sch_prb[slot];
-		memset(prb, 0, sizeof(struct siisata_prb));
+		memset(prb, 0, SIISATA_CMD_SIZE);
 		prb->prb_control = htole16(PRB_CF_SOFT_RESET);
 		prb->prb_fis[rhd_c] = PMP_PORT_CTL;
 
@@ -836,14 +836,12 @@ siisata_cmd_start(struct ata_channel *ch
 	chp->ch_error = 0;
 
 	prb = schp->sch_prb[slot];
-	memset(prb, 0, sizeof(struct siisata_prb));
+	memset(prb, 0, SIISATA_CMD_SIZE);
 
 	satafis_rhd_construct_cmd(ata_c, prb->prb_fis);
 	KASSERT(xfer->c_drive <= PMP_PORT_CTL);
 	prb->prb_fis[rhd_c] |= xfer->c_drive;
 
-	memset(prb->prb_atapi, 0, sizeof(prb->prb_atapi));
-
 	if (ata_c->r_command == ATA_DATA_SET_MANAGEMENT) {
 		prb->prb_control |= htole16(PRB_CF_PROTOCOL_OVERRIDE);
 		prb->prb_protocol_override |= htole16(PRB_PO_WRITE);
@@ -1051,14 +1049,12 @@ siisata_bio_start(struct ata_channel *ch
 	chp->ch_error = 0;
 
 	prb = schp->sch_prb[slot];
-	memset(prb, 0, sizeof(struct siisata_prb));
+	memset(prb, 0, SIISATA_CMD_SIZE);
 
 	satafis_rhd_construct_bio(xfer, prb->prb_fis);
 	KASSERT(xfer->c_drive <= PMP_PORT_CTL);
 	prb->prb_fis[rhd_c] |= xfer->c_drive;
 
-	memset(prb->prb_atapi, 0, sizeof(prb->prb_atapi));
-
 	if (siisata_dma_setup(chp, slot, ata_bio->databuf, ata_bio->bcount,
 	    (ata_bio->flags & ATA_READ) ? BUS_DMA_READ : BUS_DMA_WRITE)) {
 		ata_bio->error = ERR_DMA;
@@ -1237,9 +1233,6 @@ siisata_dma_setup(struct ata_channel *ch
 	    schp->sch_datad[slot]->dm_mapsize,
 	    (op == BUS_DMA_READ) ? BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE);
 
-	/* make sure it's clean */
-	memset(prbp->prb_sge, 0, SIISATA_NSGE * sizeof(struct siisata_prb));
-
 	SIISATA_DEBUG_PRINT(("%s: %d segs, %ld count\n", __func__,
 	    schp->sch_datad[slot]->dm_nsegs, (long unsigned int) count),
 	    DEBUG_FUNCS | DEBUG_DEBUG);
@@ -1593,8 +1586,7 @@ siisata_atapi_start(struct ata_channel *
 	chp->ch_error = 0;
 
 	prbp = schp->sch_prb[slot];
-	memset(prbp, 0, sizeof(struct siisata_prb));
-
+	memset(prbp, 0, SIISATA_CMD_SIZE);
 
 	/* fill in direction for ATAPI command */
 	if ((sc_xfer->xs_control & XS_CTL_DATA_IN))

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