Module Name:    src
Committed By:   bouyer
Date:           Thu Dec  5 16:44:32 UTC 2019

Modified Files:
        src/sys/dev/pci [netbsd-8]: if_bge.c

Log Message:
Pull up following revision(s) (requested by msaitoh in ticket #1462):
        sys/dev/pci/if_bge.c: revision 1.340
        sys/dev/pci/if_bge.c: revision 1.341
        sys/dev/pci/if_bge.c: revision 1.336
- Avoid undefined behavior in bge_setmulti(). found by kUBSan.
- Avoid undefined behavior when setting the MAC address in bge_init().
  found by kUBSan.
 Fix a bug that SK-9D41 can't detect fiber media. Check the subsystem ID
correctly. This bug was added in if_bge.c rev. 1.161.
- Use *_FLUSH() more. The main purpose is to wait following delay() correctly.
- Add missing DELAY(80) after writing BGE_MI_MODE register.


To generate a diff of this commit:
cvs rdiff -u -r1.310.2.7 -r1.310.2.8 src/sys/dev/pci/if_bge.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/pci/if_bge.c
diff -u src/sys/dev/pci/if_bge.c:1.310.2.7 src/sys/dev/pci/if_bge.c:1.310.2.8
--- src/sys/dev/pci/if_bge.c:1.310.2.7	Mon May 13 12:40:13 2019
+++ src/sys/dev/pci/if_bge.c	Thu Dec  5 16:44:32 2019
@@ -1,4 +1,4 @@
-/*	$NetBSD: if_bge.c,v 1.310.2.7 2019/05/13 12:40:13 martin Exp $	*/
+/*	$NetBSD: if_bge.c,v 1.310.2.8 2019/12/05 16:44:32 bouyer Exp $	*/
 
 /*
  * Copyright (c) 2001 Wind River Systems
@@ -79,7 +79,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_bge.c,v 1.310.2.7 2019/05/13 12:40:13 martin Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_bge.c,v 1.310.2.8 2019/12/05 16:44:32 bouyer Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -1030,10 +1030,10 @@ bge_eeprom_getbyte(struct bge_softc *sc,
 	 * Enable use of auto EEPROM access so we can avoid
 	 * having to use the bitbang method.
 	 */
-	BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_AUTO_EEPROM);
+	BGE_SETBIT_FLUSH(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_AUTO_EEPROM);
 
 	/* Reset the EEPROM, load the clock period. */
-	CSR_WRITE_4(sc, BGE_EE_ADDR,
+	CSR_WRITE_4_FLUSH(sc, BGE_EE_ADDR,
 	    BGE_EEADDR_RESET | BGE_EEHALFCLK(BGE_HALFCLK_384SCL));
 	DELAY(20);
 
@@ -1825,7 +1825,7 @@ bge_setmulti(struct bge_softc *sc)
 		/* Just want the 7 least-significant bits. */
 		h &= 0x7f;
 
-		hashes[(h & 0x60) >> 5] |= 1 << (h & 0x1F);
+		hashes[(h & 0x60) >> 5] |= 1U << (h & 0x1F);
 		ETHER_NEXT_MULTI(step, enm);
 	}
 
@@ -2283,7 +2283,7 @@ bge_chipinit(struct bge_softc *sc)
 #endif
 
 	/* Set the timer prescaler (always 66MHz) */
-	CSR_WRITE_4(sc, BGE_MISC_CFG, BGE_32BITTIME_66MHZ);
+	CSR_WRITE_4_FLUSH(sc, BGE_MISC_CFG, BGE_32BITTIME_66MHZ);
 
 	if (BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5906) {
 		DELAY(40);	/* XXX */
@@ -3439,6 +3439,7 @@ bge_attach(device_t parent, device_t sel
 	else
 		mimode |= BGE_MIMODE_BASE;
 	CSR_WRITE_4(sc, BGE_MI_MODE, mimode);
+	DELAY(80);
 
 	/*
 	 * When using the BCM5701 in PCI-X mode, data corruption has
@@ -3638,10 +3639,10 @@ alloc_retry:
 	 * Reset NVRAM before bge_reset(). It's required to acquire NVRAM
 	 * lock in bge_reset().
 	 */
-	CSR_WRITE_4(sc, BGE_EE_ADDR,
+	CSR_WRITE_4_FLUSH(sc, BGE_EE_ADDR,
 	    BGE_EEADDR_RESET | BGE_EEHALFCLK(BGE_HALFCLK_384SCL));
 	delay(1000);
-	BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_AUTO_EEPROM);
+	BGE_SETBIT_FLUSH(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_AUTO_EEPROM);
 
 	bge_stop_fw(sc);
 	bge_sig_pre_reset(sc, BGE_RESET_START);
@@ -3854,7 +3855,7 @@ alloc_retry:
 	 * by its PCI subsystem ID, as we do below for the SysKonnect SK-9D41.
 	 * The SysKonnect SK-9D41 is a 1000baseSX card.
 	 */
-	if (PCI_PRODUCT(pa->pa_id) == SK_SUBSYSID_9D41 ||
+	if (PCI_PRODUCT(subid) == SK_SUBSYSID_9D41 ||
 	    (hwcfg & BGE_HWCFG_MEDIA) == BGE_MEDIA_FIBER) {
 		if (BGE_IS_5705_PLUS(sc)) {
 			sc->bge_flags |= BGEF_FIBER_MII;
@@ -5534,7 +5535,8 @@ bge_init(struct ifnet *ifp)
 	/* Load our MAC address. */
 	m = (const uint16_t *)&(CLLADDR(ifp->if_sadl)[0]);
 	CSR_WRITE_4(sc, BGE_MAC_ADDR1_LO, htons(m[0]));
-	CSR_WRITE_4(sc, BGE_MAC_ADDR1_HI, (htons(m[1]) << 16) | htons(m[2]));
+	CSR_WRITE_4(sc, BGE_MAC_ADDR1_HI,
+	    ((uint32_t)htons(m[1]) << 16) | htons(m[2]));
 
 	/* Enable or disable promiscuous mode as needed. */
 	if (ifp->if_flags & IFF_PROMISC)
@@ -5680,10 +5682,10 @@ bge_ifmedia_upd(struct ifnet *ifp)
 			break;
 		case IFM_1000_SX:
 			if ((ifm->ifm_media & IFM_FDX) != 0) {
-				BGE_CLRBIT(sc, BGE_MAC_MODE,
+				BGE_CLRBIT_FLUSH(sc, BGE_MAC_MODE,
 				    BGE_MACMODE_HALF_DUPLEX);
 			} else {
-				BGE_SETBIT(sc, BGE_MAC_MODE,
+				BGE_SETBIT_FLUSH(sc, BGE_MAC_MODE,
 				    BGE_MACMODE_HALF_DUPLEX);
 			}
 			DELAY(40);
@@ -6081,7 +6083,7 @@ bge_link_upd(struct bge_softc *sc)
 				BGE_STS_SETBIT(sc, BGE_STS_LINK);
 				if (BGE_ASICREV(sc->bge_chipid)
 				    == BGE_ASICREV_BCM5704) {
-					BGE_CLRBIT(sc, BGE_MAC_MODE,
+					BGE_CLRBIT_FLUSH(sc, BGE_MAC_MODE,
 					    BGE_MACMODE_TBI_SEND_CFGS);
 					DELAY(40);
 				}

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