Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1745 commits)
  dp83640: free packet queues on remove
  dp83640: use proper function to free transmit time stamping packets
  ipv6: Do not use routes from locally generated RAs
  |PATCH net-next] tg3: add tx_dropped counter
  be2net: don't create multiple RX/TX rings in multi channel mode
  be2net: don't create multiple TXQs in BE2
  be2net: refactor VF setup/teardown code into be_vf_setup/clear()
  be2net: add vlan/rx-mode/flow-control config to be_setup()
  net_sched: cls_flow: use skb_header_pointer()
  ipv4: avoid useless call of the function check_peer_pmtu
  TCP: remove TCP_DEBUG
  net: Fix driver name for mdio-gpio.c
  ipv4: tcp: fix TOS value in ACK messages sent from TIME_WAIT
  rtnetlink: Add missing manual netlink notification in dev_change_net_namespaces
  ipv4: fix ipsec forward performance regression
  jme: fix irq storm after suspend/resume
  route: fix ICMP redirect validation
  net: hold sock reference while processing tx timestamps
  tcp: md5: add more const attributes
  Add ethtool -g support to virtio_net
  ...

Fix up conflicts in:
 - drivers/net/Kconfig:
	The split-up generated a trivial conflict with removal of a
	stale reference to Documentation/networking/net-modules.txt.
	Remove it from the new location instead.
 - fs/sysfs/dir.c:
	Fairly nasty conflicts with the sysfs rb-tree usage, conflicting
	with Eric Biederman's changes for tagged directories.

1 files changed, 426 insertions, 0 deletions

diff --git a/drivers/net/wireless/brcm80211/brcmsmac/otp.c b/drivers/net/wireless/brcm80211/brcmsmac/otp.c
new file mode 100644
index 000000000000..edf551561fd8
--- /dev/null
+++ b/drivers/net/wireless/brcm80211/brcmsmac/otp.c
@@ -0,0 +1,426 @@
+/*
+ * Copyright (c) 2010 Broadcom Corporation
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <linux/io.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+
+#include <brcm_hw_ids.h>
+#include <chipcommon.h>
+#include "aiutils.h"
+#include "otp.h"
+
+#define OTPS_GUP_MASK		0x00000f00
+#define OTPS_GUP_SHIFT		8
+/* h/w subregion is programmed */
+#define OTPS_GUP_HW		0x00000100
+/* s/w subregion is programmed */
+#define OTPS_GUP_SW		0x00000200
+/* chipid/pkgopt subregion is programmed */
+#define OTPS_GUP_CI		0x00000400
+/* fuse subregion is programmed */
+#define OTPS_GUP_FUSE		0x00000800
+
+/* Fields in otpprog in rev >= 21 */
+#define OTPP_COL_MASK		0x000000ff
+#define OTPP_COL_SHIFT		0
+#define OTPP_ROW_MASK		0x0000ff00
+#define OTPP_ROW_SHIFT		8
+#define OTPP_OC_MASK		0x0f000000
+#define OTPP_OC_SHIFT		24
+#define OTPP_READERR		0x10000000
+#define OTPP_VALUE_MASK		0x20000000
+#define OTPP_VALUE_SHIFT	29
+#define OTPP_START_BUSY		0x80000000
+#define	OTPP_READ		0x40000000
+
+/* Opcodes for OTPP_OC field */
+#define OTPPOC_READ		0
+#define OTPPOC_BIT_PROG		1
+#define OTPPOC_VERIFY		3
+#define OTPPOC_INIT		4
+#define OTPPOC_SET		5
+#define OTPPOC_RESET		6
+#define OTPPOC_OCST		7
+#define OTPPOC_ROW_LOCK		8
+#define OTPPOC_PRESCN_TEST	9
+
+#define OTPTYPE_IPX(ccrev)	((ccrev) == 21 || (ccrev) >= 23)
+
+#define OTPP_TRIES	10000000	/* # of tries for OTPP */
+
+#define MAXNUMRDES		9	/* Maximum OTP redundancy entries */
+
+/* Fixed size subregions sizes in words */
+#define OTPGU_CI_SZ		2
+
+struct otpinfo;
+
+/* OTP function struct */
+struct otp_fn_s {
+	int (*init)(struct si_pub *sih, struct otpinfo *oi);
+	int (*read_region)(struct otpinfo *oi, int region, u16 *data,
+			   uint *wlen);
+};
+
+struct otpinfo {
+	uint ccrev;		/* chipc revision */
+	const struct otp_fn_s *fn;	/* OTP functions */
+	struct si_pub *sih;		/* Saved sb handle */
+
+	/* IPX OTP section */
+	u16 wsize;		/* Size of otp in words */
+	u16 rows;		/* Geometry */
+	u16 cols;		/* Geometry */
+	u32 status;		/* Flag bits (lock/prog/rv).
+				 * (Reflected only when OTP is power cycled)
+				 */
+	u16 hwbase;		/* hardware subregion offset */
+	u16 hwlim;		/* hardware subregion boundary */
+	u16 swbase;		/* software subregion offset */
+	u16 swlim;		/* software subregion boundary */
+	u16 fbase;		/* fuse subregion offset */
+	u16 flim;		/* fuse subregion boundary */
+	int otpgu_base;		/* offset to General Use Region */
+};
+
+/* OTP layout */
+/* CC revs 21, 24 and 27 OTP General Use Region word offset */
+#define REVA4_OTPGU_BASE	12
+
+/* CC revs 23, 25, 26, 28 and above OTP General Use Region word offset */
+#define REVB8_OTPGU_BASE	20
+
+/* CC rev 36 OTP General Use Region word offset */
+#define REV36_OTPGU_BASE	12
+
+/* Subregion word offsets in General Use region */
+#define OTPGU_HSB_OFF		0
+#define OTPGU_SFB_OFF		1
+#define OTPGU_CI_OFF		2
+#define OTPGU_P_OFF		3
+#define OTPGU_SROM_OFF		4
+
+/* Flag bit offsets in General Use region  */
+#define OTPGU_HWP_OFF		60
+#define OTPGU_SWP_OFF		61
+#define OTPGU_CIP_OFF		62
+#define OTPGU_FUSEP_OFF		63
+#define OTPGU_CIP_MSK		0x4000
+#define OTPGU_P_MSK		0xf000
+#define OTPGU_P_SHIFT		(OTPGU_HWP_OFF % 16)
+
+/* OTP Size */
+#define OTP_SZ_FU_324		((roundup(324, 8))/8)	/* 324 bits */
+#define OTP_SZ_FU_288		(288/8)	/* 288 bits */
+#define OTP_SZ_FU_216		(216/8)	/* 216 bits */
+#define OTP_SZ_FU_72		(72/8)	/* 72 bits */
+#define OTP_SZ_CHECKSUM		(16/8)	/* 16 bits */
+#define OTP4315_SWREG_SZ	178	/* 178 bytes */
+#define OTP_SZ_FU_144		(144/8)	/* 144 bits */
+
+static u16
+ipxotp_otpr(struct otpinfo *oi, struct chipcregs __iomem *cc, uint wn)
+{
+	return R_REG(&cc->sromotp[wn]);
+}
+
+/*
+ * Calculate max HW/SW region byte size by subtracting fuse region
+ * and checksum size, osizew is oi->wsize (OTP size - GU size) in words
+ */
+static int ipxotp_max_rgnsz(struct si_pub *sih, int osizew)
+{
+	int ret = 0;
+
+	switch (sih->chip) {
+	case BCM43224_CHIP_ID:
+	case BCM43225_CHIP_ID:
+		ret = osizew * 2 - OTP_SZ_FU_72 - OTP_SZ_CHECKSUM;
+		break;
+	case BCM4313_CHIP_ID:
+		ret = osizew * 2 - OTP_SZ_FU_72 - OTP_SZ_CHECKSUM;
+		break;
+	default:
+		break;	/* Don't know about this chip */
+	}
+
+	return ret;
+}
+
+static void _ipxotp_init(struct otpinfo *oi, struct chipcregs __iomem *cc)
+{
+	uint k;
+	u32 otpp, st;
+
+	/*
+	 * record word offset of General Use Region
+	 * for various chipcommon revs
+	 */
+	if (oi->sih->ccrev == 21 || oi->sih->ccrev == 24
+	    || oi->sih->ccrev == 27) {
+		oi->otpgu_base = REVA4_OTPGU_BASE;
+	} else if (oi->sih->ccrev == 36) {
+		/*
+		 * OTP size greater than equal to 2KB (128 words),
+		 * otpgu_base is similar to rev23
+		 */
+		if (oi->wsize >= 128)
+			oi->otpgu_base = REVB8_OTPGU_BASE;
+		else
+			oi->otpgu_base = REV36_OTPGU_BASE;
+	} else if (oi->sih->ccrev == 23 || oi->sih->ccrev >= 25) {
+		oi->otpgu_base = REVB8_OTPGU_BASE;
+	}
+
+	/* First issue an init command so the status is up to date */
+	otpp =
+	    OTPP_START_BUSY | ((OTPPOC_INIT << OTPP_OC_SHIFT) & OTPP_OC_MASK);
+
+	W_REG(&cc->otpprog, otpp);
+	for (k = 0;
+	     ((st = R_REG(&cc->otpprog)) & OTPP_START_BUSY)
+	     && (k < OTPP_TRIES); k++)
+		;
+	if (k >= OTPP_TRIES)
+		return;
+
+	/* Read OTP lock bits and subregion programmed indication bits */
+	oi->status = R_REG(&cc->otpstatus);
+
+	if ((oi->sih->chip == BCM43224_CHIP_ID)
+	    || (oi->sih->chip == BCM43225_CHIP_ID)) {
+		u32 p_bits;
+		p_bits =
+		    (ipxotp_otpr(oi, cc, oi->otpgu_base + OTPGU_P_OFF) &
+		     OTPGU_P_MSK)
+		    >> OTPGU_P_SHIFT;
+		oi->status |= (p_bits << OTPS_GUP_SHIFT);
+	}
+
+	/*
+	 * h/w region base and fuse region limit are fixed to
+	 * the top and the bottom of the general use region.
+	 * Everything else can be flexible.
+	 */
+	oi->hwbase = oi->otpgu_base + OTPGU_SROM_OFF;
+	oi->hwlim = oi->wsize;
+	if (oi->status & OTPS_GUP_HW) {
+		oi->hwlim =
+		    ipxotp_otpr(oi, cc, oi->otpgu_base + OTPGU_HSB_OFF) / 16;
+		oi->swbase = oi->hwlim;
+	} else
+		oi->swbase = oi->hwbase;
+
+	/* subtract fuse and checksum from beginning */
+	oi->swlim = ipxotp_max_rgnsz(oi->sih, oi->wsize) / 2;
+
+	if (oi->status & OTPS_GUP_SW) {
+		oi->swlim =
+		    ipxotp_otpr(oi, cc, oi->otpgu_base + OTPGU_SFB_OFF) / 16;
+		oi->fbase = oi->swlim;
+	} else
+		oi->fbase = oi->swbase;
+
+	oi->flim = oi->wsize;
+}
+
+static int ipxotp_init(struct si_pub *sih, struct otpinfo *oi)
+{
+	uint idx;
+	struct chipcregs __iomem *cc;
+
+	/* Make sure we're running IPX OTP */
+	if (!OTPTYPE_IPX(sih->ccrev))
+		return -EBADE;
+
+	/* Make sure OTP is not disabled */
+	if (ai_is_otp_disabled(sih))
+		return -EBADE;
+
+	/* Check for otp size */
+	switch ((sih->cccaps & CC_CAP_OTPSIZE) >> CC_CAP_OTPSIZE_SHIFT) {
+	case 0:
+		/* Nothing there */
+		return -EBADE;
+	case 1:		/* 32x64 */
+		oi->rows = 32;
+		oi->cols = 64;
+		oi->wsize = 128;
+		break;
+	case 2:		/* 64x64 */
+		oi->rows = 64;
+		oi->cols = 64;
+		oi->wsize = 256;
+		break;
+	case 5:		/* 96x64 */
+		oi->rows = 96;
+		oi->cols = 64;
+		oi->wsize = 384;
+		break;
+	case 7:		/* 16x64 *//* 1024 bits */
+		oi->rows = 16;
+		oi->cols = 64;
+		oi->wsize = 64;
+		break;
+	default:
+		/* Don't know the geometry */
+		return -EBADE;
+	}
+
+	/* Retrieve OTP region info */
+	idx = ai_coreidx(sih);
+	cc = ai_setcoreidx(sih, SI_CC_IDX);
+
+	_ipxotp_init(oi, cc);
+
+	ai_setcoreidx(sih, idx);
+
+	return 0;
+}
+
+static int
+ipxotp_read_region(struct otpinfo *oi, int region, u16 *data, uint *wlen)
+{
+	uint idx;
+	struct chipcregs __iomem *cc;
+	uint base, i, sz;
+
+	/* Validate region selection */
+	switch (region) {
+	case OTP_HW_RGN:
+		sz = (uint) oi->hwlim - oi->hwbase;
+		if (!(oi->status & OTPS_GUP_HW)) {
+			*wlen = sz;
+			return -ENODATA;
+		}
+		if (*wlen < sz) {
+			*wlen = sz;
+			return -EOVERFLOW;
+		}
+		base = oi->hwbase;
+		break;
+	case OTP_SW_RGN:
+		sz = ((uint) oi->swlim - oi->swbase);
+		if (!(oi->status & OTPS_GUP_SW)) {
+			*wlen = sz;
+			return -ENODATA;
+		}
+		if (*wlen < sz) {
+			*wlen = sz;
+			return -EOVERFLOW;
+		}
+		base = oi->swbase;
+		break;
+	case OTP_CI_RGN:
+		sz = OTPGU_CI_SZ;
+		if (!(oi->status & OTPS_GUP_CI)) {
+			*wlen = sz;
+			return -ENODATA;
+		}
+		if (*wlen < sz) {
+			*wlen = sz;
+			return -EOVERFLOW;
+		}
+		base = oi->otpgu_base + OTPGU_CI_OFF;
+		break;
+	case OTP_FUSE_RGN:
+		sz = (uint) oi->flim - oi->fbase;
+		if (!(oi->status & OTPS_GUP_FUSE)) {
+			*wlen = sz;
+			return -ENODATA;
+		}
+		if (*wlen < sz) {
+			*wlen = sz;
+			return -EOVERFLOW;
+		}
+		base = oi->fbase;
+		break;
+	case OTP_ALL_RGN:
+		sz = ((uint) oi->flim - oi->hwbase);
+		if (!(oi->status & (OTPS_GUP_HW | OTPS_GUP_SW))) {
+			*wlen = sz;
+			return -ENODATA;
+		}
+		if (*wlen < sz) {
+			*wlen = sz;
+			return -EOVERFLOW;
+		}
+		base = oi->hwbase;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	idx = ai_coreidx(oi->sih);
+	cc = ai_setcoreidx(oi->sih, SI_CC_IDX);
+
+	/* Read the data */
+	for (i = 0; i < sz; i++)
+		data[i] = ipxotp_otpr(oi, cc, base + i);
+
+	ai_setcoreidx(oi->sih, idx);
+	*wlen = sz;
+	return 0;
+}
+
+static const struct otp_fn_s ipxotp_fn = {
+	(int (*)(struct si_pub *, struct otpinfo *)) ipxotp_init,
+	(int (*)(struct otpinfo *, int, u16 *, uint *)) ipxotp_read_region,
+};
+
+static int otp_init(struct si_pub *sih, struct otpinfo *oi)
+{
+
+	int ret;
+
+	memset(oi, 0, sizeof(struct otpinfo));
+
+	oi->ccrev = sih->ccrev;
+
+	if (OTPTYPE_IPX(oi->ccrev))
+		oi->fn = &ipxotp_fn;
+
+	if (oi->fn == NULL)
+		return -EBADE;
+
+	oi->sih = sih;
+
+	ret = (oi->fn->init) (sih, oi);
+
+	return ret;
+}
+
+int
+otp_read_region(struct si_pub *sih, int region, u16 *data, uint *wlen) {
+	struct otpinfo otpinfo;
+	struct otpinfo *oi = &otpinfo;
+	int err = 0;
+
+	if (ai_is_otp_disabled(sih)) {
+		err = -EPERM;
+		goto out;
+	}
+
+	err = otp_init(sih, oi);
+	if (err)
+		goto out;
+
+	err = ((oi)->fn->read_region)(oi, region, data, wlen);
+
+ out:
+	return err;
+}