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, 347 insertions, 0 deletions

diff --git a/drivers/net/wireless/realtek/rtlwifi/cam.c b/drivers/net/wireless/realtek/rtlwifi/cam.c
new file mode 100644
index 000000000000..8fe8b4cfae6c
--- /dev/null
+++ b/drivers/net/wireless/realtek/rtlwifi/cam.c
@@ -0,0 +1,347 @@
+/******************************************************************************
+ *
+ * Copyright(c) 2009-2012  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 "cam.h"
+#include <linux/export.h>
+
+void rtl_cam_reset_sec_info(struct ieee80211_hw *hw)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+
+	rtlpriv->sec.use_defaultkey = false;
+	rtlpriv->sec.pairwise_enc_algorithm = NO_ENCRYPTION;
+	rtlpriv->sec.group_enc_algorithm = NO_ENCRYPTION;
+	memset(rtlpriv->sec.key_buf, 0, KEY_BUF_SIZE * MAX_KEY_LEN);
+	memset(rtlpriv->sec.key_len, 0, KEY_BUF_SIZE);
+	rtlpriv->sec.pairwise_key = NULL;
+}
+
+static void rtl_cam_program_entry(struct ieee80211_hw *hw, u32 entry_no,
+			   u8 *mac_addr, u8 *key_cont_128, u16 us_config)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+
+	u32 target_command;
+	u32 target_content = 0;
+	u8 entry_i;
+
+	RT_PRINT_DATA(rtlpriv, COMP_SEC, DBG_DMESG, "Key content :",
+		      key_cont_128, 16);
+
+	for (entry_i = 0; entry_i < CAM_CONTENT_COUNT; entry_i++) {
+		target_command = entry_i + CAM_CONTENT_COUNT * entry_no;
+		target_command = target_command | BIT(31) | BIT(16);
+
+		if (entry_i == 0) {
+			target_content = (u32) (*(mac_addr + 0)) << 16 |
+			    (u32) (*(mac_addr + 1)) << 24 | (u32) us_config;
+
+			rtl_write_dword(rtlpriv, rtlpriv->cfg->maps[WCAMI],
+					target_content);
+			rtl_write_dword(rtlpriv, rtlpriv->cfg->maps[RWCAM],
+					target_command);
+
+			RT_TRACE(rtlpriv, COMP_SEC, DBG_LOUD,
+				 "WRITE %x: %x\n",
+				 rtlpriv->cfg->maps[WCAMI], target_content);
+			RT_TRACE(rtlpriv, COMP_SEC, DBG_LOUD,
+				 "The Key ID is %d\n", entry_no);
+			RT_TRACE(rtlpriv, COMP_SEC, DBG_LOUD,
+				 "WRITE %x: %x\n",
+				 rtlpriv->cfg->maps[RWCAM], target_command);
+
+		} else if (entry_i == 1) {
+
+			target_content = (u32) (*(mac_addr + 5)) << 24 |
+			    (u32) (*(mac_addr + 4)) << 16 |
+			    (u32) (*(mac_addr + 3)) << 8 |
+			    (u32) (*(mac_addr + 2));
+
+			rtl_write_dword(rtlpriv, rtlpriv->cfg->maps[WCAMI],
+					target_content);
+			rtl_write_dword(rtlpriv, rtlpriv->cfg->maps[RWCAM],
+					target_command);
+
+			RT_TRACE(rtlpriv, COMP_SEC, DBG_LOUD,
+				 "WRITE A4: %x\n", target_content);
+			RT_TRACE(rtlpriv, COMP_SEC, DBG_LOUD,
+				 "WRITE A0: %x\n", target_command);
+
+		} else {
+
+			target_content =
+			    (u32) (*(key_cont_128 + (entry_i * 4 - 8) + 3)) <<
+			    24 | (u32) (*(key_cont_128 + (entry_i * 4 - 8) + 2))
+			    << 16 |
+			    (u32) (*(key_cont_128 + (entry_i * 4 - 8) + 1)) << 8
+			    | (u32) (*(key_cont_128 + (entry_i * 4 - 8) + 0));
+
+			rtl_write_dword(rtlpriv, rtlpriv->cfg->maps[WCAMI],
+					target_content);
+			rtl_write_dword(rtlpriv, rtlpriv->cfg->maps[RWCAM],
+					target_command);
+			udelay(100);
+
+			RT_TRACE(rtlpriv, COMP_SEC, DBG_LOUD,
+				 "WRITE A4: %x\n", target_content);
+			RT_TRACE(rtlpriv, COMP_SEC, DBG_LOUD,
+				 "WRITE A0: %x\n", target_command);
+		}
+	}
+
+	RT_TRACE(rtlpriv, COMP_SEC, DBG_LOUD,
+		 "after set key, usconfig:%x\n", us_config);
+}
+
+u8 rtl_cam_add_one_entry(struct ieee80211_hw *hw, u8 *mac_addr,
+			 u32 ul_key_id, u32 ul_entry_idx, u32 ul_enc_alg,
+			 u32 ul_default_key, u8 *key_content)
+{
+	u32 us_config;
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+
+	RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
+		 "EntryNo:%x, ulKeyId=%x, ulEncAlg=%x, ulUseDK=%x MacAddr %pM\n",
+		 ul_entry_idx, ul_key_id, ul_enc_alg,
+		 ul_default_key, mac_addr);
+
+	if (ul_key_id == TOTAL_CAM_ENTRY) {
+		RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
+			 "ulKeyId exceed!\n");
+		return 0;
+	}
+
+	if (ul_default_key == 1)
+		us_config = CFG_VALID | ((u16) (ul_enc_alg) << 2);
+	else
+		us_config = CFG_VALID | ((ul_enc_alg) << 2) | ul_key_id;
+
+	rtl_cam_program_entry(hw, ul_entry_idx, mac_addr,
+			      (u8 *)key_content, us_config);
+
+	RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, "end\n");
+
+	return 1;
+
+}
+EXPORT_SYMBOL(rtl_cam_add_one_entry);
+
+int rtl_cam_delete_one_entry(struct ieee80211_hw *hw,
+			     u8 *mac_addr, u32 ul_key_id)
+{
+	u32 ul_command;
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+
+	RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, "key_idx:%d\n", ul_key_id);
+
+	ul_command = ul_key_id * CAM_CONTENT_COUNT;
+	ul_command = ul_command | BIT(31) | BIT(16);
+
+	rtl_write_dword(rtlpriv, rtlpriv->cfg->maps[WCAMI], 0);
+	rtl_write_dword(rtlpriv, rtlpriv->cfg->maps[RWCAM], ul_command);
+
+	RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
+		 "rtl_cam_delete_one_entry(): WRITE A4: %x\n", 0);
+	RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
+		 "rtl_cam_delete_one_entry(): WRITE A0: %x\n", ul_command);
+
+	return 0;
+
+}
+EXPORT_SYMBOL(rtl_cam_delete_one_entry);
+
+void rtl_cam_reset_all_entry(struct ieee80211_hw *hw)
+{
+	u32 ul_command;
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+
+	ul_command = BIT(31) | BIT(30);
+	rtl_write_dword(rtlpriv, rtlpriv->cfg->maps[RWCAM], ul_command);
+}
+EXPORT_SYMBOL(rtl_cam_reset_all_entry);
+
+void rtl_cam_mark_invalid(struct ieee80211_hw *hw, u8 uc_index)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+
+	u32 ul_command;
+	u32 ul_content;
+	u32 ul_enc_algo = rtlpriv->cfg->maps[SEC_CAM_AES];
+
+	switch (rtlpriv->sec.pairwise_enc_algorithm) {
+	case WEP40_ENCRYPTION:
+		ul_enc_algo = rtlpriv->cfg->maps[SEC_CAM_WEP40];
+		break;
+	case WEP104_ENCRYPTION:
+		ul_enc_algo = rtlpriv->cfg->maps[SEC_CAM_WEP104];
+		break;
+	case TKIP_ENCRYPTION:
+		ul_enc_algo = rtlpriv->cfg->maps[SEC_CAM_TKIP];
+		break;
+	case AESCCMP_ENCRYPTION:
+		ul_enc_algo = rtlpriv->cfg->maps[SEC_CAM_AES];
+		break;
+	default:
+		ul_enc_algo = rtlpriv->cfg->maps[SEC_CAM_AES];
+	}
+
+	ul_content = (uc_index & 3) | ((u16) (ul_enc_algo) << 2);
+
+	ul_content |= BIT(15);
+	ul_command = CAM_CONTENT_COUNT * uc_index;
+	ul_command = ul_command | BIT(31) | BIT(16);
+
+	rtl_write_dword(rtlpriv, rtlpriv->cfg->maps[WCAMI], ul_content);
+	rtl_write_dword(rtlpriv, rtlpriv->cfg->maps[RWCAM], ul_command);
+
+	RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
+		 "rtl_cam_mark_invalid(): WRITE A4: %x\n", ul_content);
+	RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
+		 "rtl_cam_mark_invalid(): WRITE A0: %x\n", ul_command);
+}
+EXPORT_SYMBOL(rtl_cam_mark_invalid);
+
+void rtl_cam_empty_entry(struct ieee80211_hw *hw, u8 uc_index)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+
+	u32 ul_command;
+	u32 ul_content;
+	u32 ul_encalgo = rtlpriv->cfg->maps[SEC_CAM_AES];
+	u8 entry_i;
+
+	switch (rtlpriv->sec.pairwise_enc_algorithm) {
+	case WEP40_ENCRYPTION:
+		ul_encalgo = rtlpriv->cfg->maps[SEC_CAM_WEP40];
+		break;
+	case WEP104_ENCRYPTION:
+		ul_encalgo = rtlpriv->cfg->maps[SEC_CAM_WEP104];
+		break;
+	case TKIP_ENCRYPTION:
+		ul_encalgo = rtlpriv->cfg->maps[SEC_CAM_TKIP];
+		break;
+	case AESCCMP_ENCRYPTION:
+		ul_encalgo = rtlpriv->cfg->maps[SEC_CAM_AES];
+		break;
+	default:
+		ul_encalgo = rtlpriv->cfg->maps[SEC_CAM_AES];
+	}
+
+	for (entry_i = 0; entry_i < CAM_CONTENT_COUNT; entry_i++) {
+
+		if (entry_i == 0) {
+			ul_content =
+			    (uc_index & 0x03) | ((u16) (ul_encalgo) << 2);
+			ul_content |= BIT(15);
+
+		} else {
+			ul_content = 0;
+		}
+
+		ul_command = CAM_CONTENT_COUNT * uc_index + entry_i;
+		ul_command = ul_command | BIT(31) | BIT(16);
+
+		rtl_write_dword(rtlpriv, rtlpriv->cfg->maps[WCAMI], ul_content);
+		rtl_write_dword(rtlpriv, rtlpriv->cfg->maps[RWCAM], ul_command);
+
+		RT_TRACE(rtlpriv, COMP_SEC, DBG_LOUD,
+			 "rtl_cam_empty_entry(): WRITE A4: %x\n",
+			 ul_content);
+		RT_TRACE(rtlpriv, COMP_SEC, DBG_LOUD,
+			 "rtl_cam_empty_entry(): WRITE A0: %x\n",
+			 ul_command);
+	}
+
+}
+EXPORT_SYMBOL(rtl_cam_empty_entry);
+
+u8 rtl_cam_get_free_entry(struct ieee80211_hw *hw, u8 *sta_addr)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	u32 bitmap = (rtlpriv->sec.hwsec_cam_bitmap) >> 4;
+	u8 entry_idx = 0;
+	u8 i, *addr;
+
+	if (NULL == sta_addr) {
+		RT_TRACE(rtlpriv, COMP_SEC, DBG_EMERG,
+			 "sta_addr is NULL.\n");
+		return TOTAL_CAM_ENTRY;
+	}
+	/* Does STA already exist? */
+	for (i = 4; i < TOTAL_CAM_ENTRY; i++) {
+		addr = rtlpriv->sec.hwsec_cam_sta_addr[i];
+		if (ether_addr_equal_unaligned(addr, sta_addr))
+			return i;
+	}
+	/* Get a free CAM entry. */
+	for (entry_idx = 4; entry_idx < TOTAL_CAM_ENTRY; entry_idx++) {
+		if ((bitmap & BIT(0)) == 0) {
+			RT_TRACE(rtlpriv, COMP_SEC, DBG_EMERG,
+				 "-----hwsec_cam_bitmap: 0x%x entry_idx=%d\n",
+				 rtlpriv->sec.hwsec_cam_bitmap, entry_idx);
+			rtlpriv->sec.hwsec_cam_bitmap |= BIT(0) << entry_idx;
+			memcpy(rtlpriv->sec.hwsec_cam_sta_addr[entry_idx],
+			       sta_addr, ETH_ALEN);
+			return entry_idx;
+		}
+		bitmap = bitmap >> 1;
+	}
+	return TOTAL_CAM_ENTRY;
+}
+EXPORT_SYMBOL(rtl_cam_get_free_entry);
+
+void rtl_cam_del_entry(struct ieee80211_hw *hw, u8 *sta_addr)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	u32 bitmap;
+	u8 i, *addr;
+
+	if (NULL == sta_addr) {
+		RT_TRACE(rtlpriv, COMP_SEC, DBG_EMERG,
+			 "sta_addr is NULL.\n");
+		return;
+	}
+
+	if (is_zero_ether_addr(sta_addr)) {
+		RT_TRACE(rtlpriv, COMP_SEC, DBG_EMERG,
+			 "sta_addr is %pM\n", sta_addr);
+		return;
+	}
+	/* Does STA already exist? */
+	for (i = 4; i < TOTAL_CAM_ENTRY; i++) {
+		addr = rtlpriv->sec.hwsec_cam_sta_addr[i];
+		bitmap = (rtlpriv->sec.hwsec_cam_bitmap) >> i;
+		if (((bitmap & BIT(0)) == BIT(0)) &&
+		    (ether_addr_equal_unaligned(addr, sta_addr))) {
+			/* Remove from HW Security CAM */
+			eth_zero_addr(rtlpriv->sec.hwsec_cam_sta_addr[i]);
+			rtlpriv->sec.hwsec_cam_bitmap &= ~(BIT(0) << i);
+			RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
+				 "&&&&&&&&&del entry %d\n", i);
+		}
+	}
+	return;
+}
+EXPORT_SYMBOL(rtl_cam_del_entry);