From fca9fd5bc6db76d1428bb61b31eaa426a858a203 Mon Sep 17 00:00:00 2001
From: Mike Belopuhov <mikeb@cvs.openbsd.org>
Date: Fri, 26 Oct 2012 18:05:51 +0000
Subject: cleanup oce_init_fw; use less bitfields

---
 sys/dev/pci/if_oce.c |  4 ++--
 sys/dev/pci/oce.c    | 34 +++++++++++++++++-----------------
 sys/dev/pci/ocereg.h |  4 +++-
 sys/dev/pci/ocevar.h |  4 ++--
 4 files changed, 24 insertions(+), 22 deletions(-)

(limited to 'sys/dev/pci')

diff --git a/sys/dev/pci/if_oce.c b/sys/dev/pci/if_oce.c
index b0a1405a57e..d183c3d4565 100644
--- a/sys/dev/pci/if_oce.c
+++ b/sys/dev/pci/if_oce.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: if_oce.c,v 1.28 2012/10/26 17:56:24 mikeb Exp $	*/
+/*	$OpenBSD: if_oce.c,v 1.29 2012/10/26 18:05:50 mikeb Exp $	*/
 
 /*
  * Copyright (c) 2012 Mike Belopuhov
@@ -546,7 +546,7 @@ oce_pci_alloc(struct oce_softc *sc)
 	if (OCE_SLI_IFTYPE(reg) == OCE_INTF_IF_TYPE_1)
 		sc->flags |= OCE_FLAGS_MBOX_ENDIAN_RQD;
 	if (OCE_SLI_HINT1(reg) == OCE_INTF_FUNC_RESET_REQD)
-		sc->flags |= OCE_FLAGS_FUNCRESET_RQD;
+		sc->flags |= OCE_FLAGS_RESET_RQD;
 	if (OCE_SLI_FUNCTION(reg) == OCE_INTF_VIRT_FUNC)
 		sc->flags |= OCE_FLAGS_VIRTUAL_PORT;
 
diff --git a/sys/dev/pci/oce.c b/sys/dev/pci/oce.c
index 6ce4bd3278a..5276b7c54d5 100644
--- a/sys/dev/pci/oce.c
+++ b/sys/dev/pci/oce.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: oce.c,v 1.16 2012/10/26 17:56:24 mikeb Exp $	*/
+/*	$OpenBSD: oce.c,v 1.17 2012/10/26 18:05:50 mikeb Exp $	*/
 
 /*
  * Copyright (c) 2012 Mike Belopuhov
@@ -118,17 +118,16 @@ int
 oce_init_fw(struct oce_softc *sc)
 {
 	struct ioctl_common_function_reset fwcmd;
-	mpu_ep_semaphore_t post_status;
-	int tmo = 60000;
-	int err = 0;
+	uint32_t reg;
+	int err = 0, tmo = 60000;
 
 	/* read semaphore CSR */
-	post_status.dw0 = OCE_READ_REG32(sc, csr, MPU_EP_SEMAPHORE(sc));
+	reg = OCE_READ_REG32(sc, csr, MPU_EP_SEMAPHORE(sc));
 
 	/* if host is ready then wait for fw ready else send POST */
-	if (post_status.bits.stage <= POST_STAGE_AWAITING_HOST_RDY) {
-		post_status.bits.stage = POST_STAGE_CHIP_RESET;
-		OCE_WRITE_REG32(sc, csr, MPU_EP_SEMAPHORE(sc), post_status.dw0);
+	if ((reg & MPU_EP_SEM_STAGE_MASK) <= POST_STAGE_AWAITING_HOST_RDY) {
+		reg = (reg & ~MPU_EP_SEM_STAGE_MASK) | POST_STAGE_CHIP_RESET;
+		OCE_WRITE_REG32(sc, csr, MPU_EP_SEMAPHORE(sc), reg);
 	}
 
 	/* wait for FW to become ready */
@@ -138,25 +137,26 @@ oce_init_fw(struct oce_softc *sc)
 
 		DELAY(1000);
 
-		post_status.dw0 = OCE_READ_REG32(sc, csr, MPU_EP_SEMAPHORE(sc));
-		if (post_status.bits.error) {
-			printf(": POST failed: %x\n", post_status.dw0);
-			return ENXIO;
+		reg = OCE_READ_REG32(sc, csr, MPU_EP_SEMAPHORE(sc));
+		if (reg & MPU_EP_SEM_ERROR) {
+			printf(": POST failed: %#x\n", reg);
+			return (ENXIO);
 		}
-		if (post_status.bits.stage == POST_STAGE_ARMFW_READY) {
+		if ((reg & MPU_EP_SEM_STAGE_MASK) == POST_STAGE_ARMFW_READY) {
 			/* reset FW */
-			bzero(&fwcmd, sizeof(fwcmd));
-			if (sc->flags & OCE_FLAGS_FUNCRESET_RQD)
+			if (sc->flags & OCE_FLAGS_RESET_RQD) {
+				bzero(&fwcmd, sizeof(fwcmd));
 				err = oce_fw(sc, MBX_SUBSYSTEM_COMMON,
 				    OPCODE_COMMON_FUNCTION_RESET, OCE_MBX_VER_V0,
 				    &fwcmd, sizeof(fwcmd));
+			}
 			return (err);
 		}
 	}
 
-	printf(": POST timed out: %x\n", post_status.dw0);
+	printf(": POST timed out: %#x\n", reg);
 
-	return ENXIO;
+	return (ENXIO);
 }
 
 /**
diff --git a/sys/dev/pci/ocereg.h b/sys/dev/pci/ocereg.h
index fd34ae8c131..0761574b0b1 100644
--- a/sys/dev/pci/ocereg.h
+++ b/sys/dev/pci/ocereg.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: ocereg.h,v 1.9 2012/10/26 17:56:24 mikeb Exp $	*/
+/*	$OpenBSD: ocereg.h,v 1.10 2012/10/26 18:05:50 mikeb Exp $	*/
 
 /*-
  * Copyright (C) 2012 Emulex
@@ -51,6 +51,8 @@
 #define	MPU_EP_SEMAPHORE_XE201		0x400
 #define MPU_EP_SEMAPHORE(sc) \
 	((IS_BE(sc)) ? MPU_EP_SEMAPHORE_BE3 : MPU_EP_SEMAPHORE_XE201)
+#define	 MPU_EP_SEM_STAGE_MASK		0xffff
+#define	 MPU_EP_SEM_ERROR		(1<<31)
 
 #define	PCI_INTR_CTRL			0xfc
 #define	 HOSTINTR_MASK			(1<<29)
diff --git a/sys/dev/pci/ocevar.h b/sys/dev/pci/ocevar.h
index 41af4a07c99..dcee5cc7e65 100644
--- a/sys/dev/pci/ocevar.h
+++ b/sys/dev/pci/ocevar.h
@@ -1,4 +1,4 @@
-/* 	$OpenBSD: ocevar.h,v 1.17 2012/10/26 17:56:24 mikeb Exp $	*/
+/* 	$OpenBSD: ocevar.h,v 1.18 2012/10/26 18:05:50 mikeb Exp $	*/
 
 /*-
  * Copyright (C) 2012 Emulex
@@ -532,7 +532,7 @@ struct link_status {
 #define OCE_FLAGS_MSIX_CAPABLE		0x00000008
 #define OCE_FLAGS_USING_MSI		0x00000010
 #define OCE_FLAGS_USING_MSIX		0x00000020
-#define OCE_FLAGS_FUNCRESET_RQD		0x00000040
+#define OCE_FLAGS_RESET_RQD		0x00000040
 #define OCE_FLAGS_VIRTUAL_PORT		0x00000080
 #define OCE_FLAGS_MBOX_ENDIAN_RQD	0x00000100
 #define OCE_FLAGS_BE3			0x00000200
-- 
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