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

Pull networking updates from David Miller:

Changes of note:

 1) Allow to schedule ICMP packets in IPVS, from Alex Gartrell.

 2) Provide FIB table ID in ipv4 route dumps just as ipv6 does, from
    David Ahern.

 3) Allow the user to ask for the statistics to be filtered out of
    ipv4/ipv6 address netlink dumps.  From Sowmini Varadhan.

 4) More work to pass the network namespace context around deep into
    various packet path APIs, starting with the netfilter hooks.  From
    Eric W Biederman.

 5) Add layer 2 TX/RX checksum offloading to qeth driver, from Thomas
    Richter.

 6) Use usec resolution for SYN/ACK RTTs in TCP, from Yuchung Cheng.

 7) Support Very High Throughput in wireless MESH code, from Bob
    Copeland.

 8) Allow setting the ageing_time in switchdev/rocker.  From Scott
    Feldman.

 9) Properly autoload L2TP type modules, from Stephen Hemminger.

10) Fix and enable offload features by default in 8139cp driver, from
    David Woodhouse.

11) Support both ipv4 and ipv6 sockets in a single vxlan device, from
    Jiri Benc.

12) Fix CWND limiting of thin streams in TCP, from Bendik Rønning
    Opstad.

13) Fix IPSEC flowcache overflows on large systems, from Steffen
    Klassert.

14) Convert bridging to track VLANs using rhashtable entries rather than
    a bitmap.  From Nikolay Aleksandrov.

15) Make TCP listener handling completely lockless, this is a major
    accomplishment.  Incoming request sockets now live in the
    established hash table just like any other socket too.

    From Eric Dumazet.

15) Provide more bridging attributes to netlink, from Nikolay
    Aleksandrov.

16) Use hash based algorithm for ipv4 multipath routing, this was very
    long overdue.  From Peter Nørlund.

17) Several y2038 cures, mostly avoiding timespec.  From Arnd Bergmann.

18) Allow non-root execution of EBPF programs, from Alexei Starovoitov.

19) Support SO_INCOMING_CPU as setsockopt, from Eric Dumazet.  This
    influences the port binding selection logic used by SO_REUSEPORT.

20) Add ipv6 support to VRF, from David Ahern.

21) Add support for Mellanox Spectrum switch ASIC, from Jiri Pirko.

22) Add rtl8xxxu Realtek wireless driver, from Jes Sorensen.

23) Implement RACK loss recovery in TCP, from Yuchung Cheng.

24) Support multipath routes in MPLS, from Roopa Prabhu.

25) Fix POLLOUT notification for listening sockets in AF_UNIX, from Eric
    Dumazet.

26) Add new QED Qlogic river, from Yuval Mintz, Manish Chopra, and
    Sudarsana Kalluru.

27) Don't fetch timestamps on AF_UNIX sockets, from Hannes Frederic
    Sowa.

28) Support ipv6 geneve tunnels, from John W Linville.

29) Add flood control support to switchdev layer, from Ido Schimmel.

30) Fix CHECKSUM_PARTIAL handling of potentially fragmented frames, from
    Hannes Frederic Sowa.

31) Support persistent maps and progs in bpf, from Daniel Borkmann.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1790 commits)
  sh_eth: use DMA barriers
  switchdev: respect SKIP_EOPNOTSUPP flag in case there is no recursion
  net: sched: kill dead code in sch_choke.c
  irda: Delete an unnecessary check before the function call "irlmp_unregister_service"
  net: dsa: mv88e6xxx: include DSA ports in VLANs
  net: dsa: mv88e6xxx: disable SA learning for DSA and CPU ports
  net/core: fix for_each_netdev_feature
  vlan: Invoke driver vlan hooks only if device is present
  arcnet/com20020: add LEDS_CLASS dependency
  bpf, verifier: annotate verbose printer with __printf
  dp83640: Only wait for timestamps for packets with timestamping enabled.
  ptp: Change ptp_class to a proper bitmask
  dp83640: Prune rx timestamp list before reading from it
  dp83640: Delay scheduled work.
  dp83640: Include hash in timestamp/packet matching
  ipv6: fix tunnel error handling
  net/mlx5e: Fix LSO vlan insertion
  net/mlx5e: Re-eanble client vlan TX acceleration
  net/mlx5e: Return error in case mlx5e_set_features() fails
  net/mlx5e: Don't allow more than max supported channels
  ...

1 files changed, 339 insertions, 0 deletions

diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8723com/fw_common.c b/drivers/net/wireless/realtek/rtlwifi/rtl8723com/fw_common.c
new file mode 100644
index 000000000000..a2f5e89bedfe
--- /dev/null
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8723com/fw_common.c
@@ -0,0 +1,339 @@
+/******************************************************************************
+ *
+ * Copyright(c) 2009-2014  Realtek Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * The full GNU General Public License is included in this distribution in the
+ * file called LICENSE.
+ *
+ * Contact Information:
+ * wlanfae <wlanfae@realtek.com>
+ * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
+ * Hsinchu 300, Taiwan.
+ *
+ * Larry Finger <Larry.Finger@lwfinger.net>
+ *
+ *****************************************************************************/
+
+#include "../wifi.h"
+#include "../pci.h"
+#include "../base.h"
+#include "fw_common.h"
+#include <linux/module.h>
+
+void rtl8723_enable_fw_download(struct ieee80211_hw *hw, bool enable)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	u8 tmp;
+
+	if (enable) {
+		tmp = rtl_read_byte(rtlpriv, REG_SYS_FUNC_EN + 1);
+		rtl_write_byte(rtlpriv, REG_SYS_FUNC_EN + 1,
+			       tmp | 0x04);
+
+		tmp = rtl_read_byte(rtlpriv, REG_MCUFWDL);
+		rtl_write_byte(rtlpriv, REG_MCUFWDL, tmp | 0x01);
+
+		tmp = rtl_read_byte(rtlpriv, REG_MCUFWDL + 2);
+		rtl_write_byte(rtlpriv, REG_MCUFWDL + 2, tmp & 0xf7);
+	} else {
+		tmp = rtl_read_byte(rtlpriv, REG_MCUFWDL);
+		rtl_write_byte(rtlpriv, REG_MCUFWDL, tmp & 0xfe);
+
+		rtl_write_byte(rtlpriv, REG_MCUFWDL + 1, 0x00);
+	}
+}
+EXPORT_SYMBOL_GPL(rtl8723_enable_fw_download);
+
+void rtl8723_fw_block_write(struct ieee80211_hw *hw,
+			    const u8 *buffer, u32 size)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	u32 blocksize = sizeof(u32);
+	u8 *bufferptr = (u8 *)buffer;
+	u32 *pu4byteptr = (u32 *)buffer;
+	u32 i, offset, blockcount, remainsize;
+
+	blockcount = size / blocksize;
+	remainsize = size % blocksize;
+
+	for (i = 0; i < blockcount; i++) {
+		offset = i * blocksize;
+		rtl_write_dword(rtlpriv, (FW_8192C_START_ADDRESS + offset),
+				*(pu4byteptr + i));
+	}
+	if (remainsize) {
+		offset = blockcount * blocksize;
+		bufferptr += offset;
+		for (i = 0; i < remainsize; i++) {
+			rtl_write_byte(rtlpriv,
+				       (FW_8192C_START_ADDRESS + offset + i),
+				       *(bufferptr + i));
+		}
+	}
+}
+EXPORT_SYMBOL_GPL(rtl8723_fw_block_write);
+
+void rtl8723_fw_page_write(struct ieee80211_hw *hw,
+			   u32 page, const u8 *buffer, u32 size)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	u8 value8;
+	u8 u8page = (u8) (page & 0x07);
+
+	value8 = (rtl_read_byte(rtlpriv, REG_MCUFWDL + 2) & 0xF8) | u8page;
+
+	rtl_write_byte(rtlpriv, (REG_MCUFWDL + 2), value8);
+	rtl8723_fw_block_write(hw, buffer, size);
+}
+EXPORT_SYMBOL_GPL(rtl8723_fw_page_write);
+
+void rtl8723_fill_dummy(u8 *pfwbuf, u32 *pfwlen)
+{
+	u32 fwlen = *pfwlen;
+	u8 remain = (u8) (fwlen % 4);
+
+	remain = (remain == 0) ? 0 : (4 - remain);
+
+	while (remain > 0) {
+		pfwbuf[fwlen] = 0;
+		fwlen++;
+		remain--;
+	}
+	*pfwlen = fwlen;
+}
+EXPORT_SYMBOL(rtl8723_fill_dummy);
+
+void rtl8723_write_fw(struct ieee80211_hw *hw,
+		      enum version_8723e version,
+		      u8 *buffer, u32 size, u8 max_page)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	u8 *bufferptr = buffer;
+	u32 page_nums, remain_size;
+	u32 page, offset;
+
+	RT_TRACE(rtlpriv, COMP_FW, DBG_TRACE, "FW size is %d bytes,\n", size);
+
+	rtl8723_fill_dummy(bufferptr, &size);
+
+	page_nums = size / FW_8192C_PAGE_SIZE;
+	remain_size = size % FW_8192C_PAGE_SIZE;
+
+	if (page_nums > max_page) {
+		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
+			 "Page numbers should not greater than %d\n", max_page);
+	}
+	for (page = 0; page < page_nums; page++) {
+		offset = page * FW_8192C_PAGE_SIZE;
+		rtl8723_fw_page_write(hw, page, (bufferptr + offset),
+				      FW_8192C_PAGE_SIZE);
+	}
+
+	if (remain_size) {
+		offset = page_nums * FW_8192C_PAGE_SIZE;
+		page = page_nums;
+		rtl8723_fw_page_write(hw, page, (bufferptr + offset),
+				      remain_size);
+	}
+	RT_TRACE(rtlpriv, COMP_FW, DBG_TRACE, "FW write done.\n");
+}
+EXPORT_SYMBOL_GPL(rtl8723_write_fw);
+
+void rtl8723ae_firmware_selfreset(struct ieee80211_hw *hw)
+{
+	u8 u1b_tmp;
+	u8 delay = 100;
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+
+	rtl_write_byte(rtlpriv, REG_HMETFR + 3, 0x20);
+	u1b_tmp = rtl_read_byte(rtlpriv, REG_SYS_FUNC_EN + 1);
+
+	while (u1b_tmp & BIT(2)) {
+		delay--;
+		if (delay == 0)
+			break;
+		udelay(50);
+		u1b_tmp = rtl_read_byte(rtlpriv, REG_SYS_FUNC_EN + 1);
+	}
+	if (delay == 0) {
+		u1b_tmp = rtl_read_byte(rtlpriv, REG_SYS_FUNC_EN + 1);
+		rtl_write_byte(rtlpriv, REG_SYS_FUNC_EN + 1,
+			       u1b_tmp&(~BIT(2)));
+	}
+}
+EXPORT_SYMBOL_GPL(rtl8723ae_firmware_selfreset);
+
+void rtl8723be_firmware_selfreset(struct ieee80211_hw *hw)
+{
+	u8 u1b_tmp;
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+
+	u1b_tmp = rtl_read_byte(rtlpriv, REG_RSV_CTRL + 1);
+	rtl_write_byte(rtlpriv, REG_RSV_CTRL + 1, (u1b_tmp & (~BIT(0))));
+
+	u1b_tmp = rtl_read_byte(rtlpriv, REG_SYS_FUNC_EN + 1);
+	rtl_write_byte(rtlpriv, REG_SYS_FUNC_EN + 1, (u1b_tmp & (~BIT(2))));
+	udelay(50);
+
+	u1b_tmp = rtl_read_byte(rtlpriv, REG_RSV_CTRL + 1);
+	rtl_write_byte(rtlpriv, REG_RSV_CTRL + 1, (u1b_tmp | BIT(0)));
+
+	u1b_tmp = rtl_read_byte(rtlpriv, REG_SYS_FUNC_EN + 1);
+	rtl_write_byte(rtlpriv, REG_SYS_FUNC_EN + 1, (u1b_tmp | BIT(2)));
+
+	RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD,
+		 "  _8051Reset8723be(): 8051 reset success .\n");
+}
+EXPORT_SYMBOL_GPL(rtl8723be_firmware_selfreset);
+
+int rtl8723_fw_free_to_go(struct ieee80211_hw *hw, bool is_8723be,
+			  int max_count)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	int err = -EIO;
+	u32 counter = 0;
+	u32 value32;
+
+	do {
+		value32 = rtl_read_dword(rtlpriv, REG_MCUFWDL);
+	} while ((counter++ < max_count) &&
+		 (!(value32 & FWDL_CHKSUM_RPT)));
+
+	if (counter >= max_count) {
+		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
+			 "chksum report fail ! REG_MCUFWDL:0x%08x .\n",
+			 value32);
+		goto exit;
+	}
+	RT_TRACE(rtlpriv, COMP_FW, DBG_TRACE,
+		 "Checksum report OK ! REG_MCUFWDL:0x%08x .\n", value32);
+
+	value32 = rtl_read_dword(rtlpriv, REG_MCUFWDL) | MCUFWDL_RDY;
+	value32 &= ~WINTINI_RDY;
+	rtl_write_dword(rtlpriv, REG_MCUFWDL, value32);
+
+	if (is_8723be)
+		rtl8723be_firmware_selfreset(hw);
+	counter = 0;
+
+	do {
+		value32 = rtl_read_dword(rtlpriv, REG_MCUFWDL);
+		if (value32 & WINTINI_RDY) {
+			RT_TRACE(rtlpriv, COMP_FW, DBG_TRACE,
+				 "Polling FW ready success!! REG_MCUFWDL:0x%08x .\n",
+				 value32);
+			err = 0;
+			goto exit;
+		}
+
+		mdelay(FW_8192C_POLLING_DELAY);
+
+	} while (counter++ < max_count);
+
+	RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
+		 "Polling FW ready fail!! REG_MCUFWDL:0x%08x .\n",
+		 value32);
+
+exit:
+	return err;
+}
+EXPORT_SYMBOL_GPL(rtl8723_fw_free_to_go);
+
+int rtl8723_download_fw(struct ieee80211_hw *hw,
+			bool is_8723be, int max_count)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
+	struct rtlwifi_firmware_header *pfwheader;
+	u8 *pfwdata;
+	u32 fwsize;
+	int err;
+	enum version_8723e version = rtlhal->version;
+	int max_page;
+
+	if (!rtlhal->pfirmware)
+		return 1;
+
+	pfwheader = (struct rtlwifi_firmware_header *)rtlhal->pfirmware;
+	pfwdata = rtlhal->pfirmware;
+	fwsize = rtlhal->fwsize;
+
+	if (!is_8723be)
+		max_page = 6;
+	else
+		max_page = 8;
+	if (rtlpriv->cfg->ops->is_fw_header(pfwheader)) {
+		RT_TRACE(rtlpriv, COMP_FW, DBG_LOUD,
+			 "Firmware Version(%d), Signature(%#x), Size(%d)\n",
+			 pfwheader->version, pfwheader->signature,
+			 (int)sizeof(struct rtlwifi_firmware_header));
+
+		pfwdata = pfwdata + sizeof(struct rtlwifi_firmware_header);
+		fwsize = fwsize - sizeof(struct rtlwifi_firmware_header);
+	}
+
+	if (rtl_read_byte(rtlpriv, REG_MCUFWDL)&BIT(7)) {
+		if (is_8723be)
+			rtl8723be_firmware_selfreset(hw);
+		else
+			rtl8723ae_firmware_selfreset(hw);
+		rtl_write_byte(rtlpriv, REG_MCUFWDL, 0x00);
+	}
+	rtl8723_enable_fw_download(hw, true);
+	rtl8723_write_fw(hw, version, pfwdata, fwsize, max_page);
+	rtl8723_enable_fw_download(hw, false);
+
+	err = rtl8723_fw_free_to_go(hw, is_8723be, max_count);
+	if (err) {
+		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
+			 "Firmware is not ready to run!\n");
+	} else {
+		RT_TRACE(rtlpriv, COMP_FW, DBG_TRACE,
+			 "Firmware is ready to run!\n");
+	}
+	return 0;
+}
+EXPORT_SYMBOL_GPL(rtl8723_download_fw);
+
+bool rtl8723_cmd_send_packet(struct ieee80211_hw *hw,
+			     struct sk_buff *skb)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
+	struct rtl8192_tx_ring *ring;
+	struct rtl_tx_desc *pdesc;
+	struct sk_buff *pskb = NULL;
+	u8 own;
+	unsigned long flags;
+
+	ring = &rtlpci->tx_ring[BEACON_QUEUE];
+
+	pskb = __skb_dequeue(&ring->queue);
+	if (pskb)
+		kfree_skb(pskb);
+
+	spin_lock_irqsave(&rtlpriv->locks.irq_th_lock, flags);
+
+	pdesc = &ring->desc[0];
+	own = (u8) rtlpriv->cfg->ops->get_desc((u8 *)pdesc, true, HW_DESC_OWN);
+
+	rtlpriv->cfg->ops->fill_tx_cmddesc(hw, (u8 *)pdesc, 1, 1, skb);
+
+	__skb_queue_tail(&ring->queue, skb);
+
+	spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags);
+
+	rtlpriv->cfg->ops->tx_polling(hw, BEACON_QUEUE);
+
+	return true;
+}
+EXPORT_SYMBOL_GPL(rtl8723_cmd_send_packet);