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

Pull networking updates from David Miller:
 "Highlights:

   1) Steady transitioning of the BPF instructure to a generic spot so
      all kernel subsystems can make use of it, from Alexei Starovoitov.

   2) SFC driver supports busy polling, from Alexandre Rames.

   3) Take advantage of hash table in UDP multicast delivery, from David
      Held.

   4) Lighten locking, in particular by getting rid of the LRU lists, in
      inet frag handling.  From Florian Westphal.

   5) Add support for various RFC6458 control messages in SCTP, from
      Geir Ola Vaagland.

   6) Allow to filter bridge forwarding database dumps by device, from
      Jamal Hadi Salim.

   7) virtio-net also now supports busy polling, from Jason Wang.

   8) Some low level optimization tweaks in pktgen from Jesper Dangaard
      Brouer.

   9) Add support for ipv6 address generation modes, so that userland
      can have some input into the process.  From Jiri Pirko.

  10) Consolidate common TCP connection request code in ipv4 and ipv6,
      from Octavian Purdila.

  11) New ARP packet logger in netfilter, from Pablo Neira Ayuso.

  12) Generic resizable RCU hash table, with intial users in netlink and
      nftables.  From Thomas Graf.

  13) Maintain a name assignment type so that userspace can see where a
      network device name came from (enumerated by kernel, assigned
      explicitly by userspace, etc.) From Tom Gundersen.

  14) Automatic flow label generation on transmit in ipv6, from Tom
      Herbert.

  15) New packet timestamping facilities from Willem de Bruijn, meant to
      assist in measuring latencies going into/out-of the packet
      scheduler, latency from TCP data transmission to ACK, etc"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1536 commits)
  cxgb4 : Disable recursive mailbox commands when enabling vi
  net: reduce USB network driver config options.
  tg3: Modify tg3_tso_bug() to handle multiple TX rings
  amd-xgbe: Perform phy connect/disconnect at dev open/stop
  amd-xgbe: Use dma_set_mask_and_coherent to set DMA mask
  net: sun4i-emac: fix memory leak on bad packet
  sctp: fix possible seqlock seadlock in sctp_packet_transmit()
  Revert "net: phy: Set the driver when registering an MDIO bus device"
  cxgb4vf: Turn off SGE RX/TX Callback Timers and interrupts in PCI shutdown routine
  team: Simplify return path of team_newlink
  bridge: Update outdated comment on promiscuous mode
  net-timestamp: ACK timestamp for bytestreams
  net-timestamp: TCP timestamping
  net-timestamp: SCHED timestamp on entering packet scheduler
  net-timestamp: add key to disambiguate concurrent datagrams
  net-timestamp: move timestamp flags out of sk_flags
  net-timestamp: extend SCM_TIMESTAMPING ancillary data struct
  cxgb4i : Move stray CPL definitions to cxgb4 driver
  tcp: reduce spurious retransmits due to transient SACK reneging
  qlcnic: Initialize dcbnl_ops before register_netdev
  ...

1 files changed, 188 insertions, 1 deletions

diff --git a/drivers/net/wireless/mwifiex/pcie.c b/drivers/net/wireless/mwifiex/pcie.c
index 2cc9b6fca490..c16dd2cc8198 100644
--- a/drivers/net/wireless/mwifiex/pcie.c
+++ b/drivers/net/wireless/mwifiex/pcie.c
@@ -1,7 +1,7 @@
 /*
  * Marvell Wireless LAN device driver: PCIE specific handling
  *
- * Copyright (C) 2011, Marvell International Ltd.
+ * Copyright (C) 2011-2014, Marvell International Ltd.
  *
  * This software file (the "File") is distributed by Marvell International
  * Ltd. under the terms of the GNU General Public License Version 2, June 1991
@@ -37,6 +37,13 @@ static struct mwifiex_if_ops pcie_ops;
 
 static struct semaphore add_remove_card_sem;
 
+static struct memory_type_mapping mem_type_mapping_tbl[] = {
+	{"ITCM", NULL, 0, 0xF0},
+	{"DTCM", NULL, 0, 0xF1},
+	{"SQRAM", NULL, 0, 0xF2},
+	{"IRAM", NULL, 0, 0xF3},
+};
+
 static int
 mwifiex_map_pci_memory(struct mwifiex_adapter *adapter, struct sk_buff *skb,
 		       size_t size, int flags)
@@ -192,6 +199,7 @@ static int mwifiex_pcie_probe(struct pci_dev *pdev,
 		card->pcie.reg = data->reg;
 		card->pcie.blksz_fw_dl = data->blksz_fw_dl;
 		card->pcie.tx_buf_size = data->tx_buf_size;
+		card->pcie.supports_fw_dump = data->supports_fw_dump;
 	}
 
 	if (mwifiex_add_card(card, &add_remove_card_sem, &pcie_ops,
@@ -221,6 +229,8 @@ static void mwifiex_pcie_remove(struct pci_dev *pdev)
 	if (!adapter || !adapter->priv_num)
 		return;
 
+	cancel_work_sync(&adapter->iface_work);
+
 	if (user_rmmod) {
 #ifdef CONFIG_PM_SLEEP
 		if (adapter->is_suspended)
@@ -307,6 +317,17 @@ static int mwifiex_read_reg(struct mwifiex_adapter *adapter, int reg, u32 *data)
 	return 0;
 }
 
+/* This function reads u8 data from PCIE card register. */
+static int mwifiex_read_reg_byte(struct mwifiex_adapter *adapter,
+				 int reg, u8 *data)
+{
+	struct pcie_service_card *card = adapter->card;
+
+	*data = ioread8(card->pci_mmap1 + reg);
+
+	return 0;
+}
+
 /*
  * This function adds delay loop to ensure FW is awake before proceeding.
  */
@@ -2173,6 +2194,168 @@ static int mwifiex_pcie_host_to_card(struct mwifiex_adapter *adapter, u8 type,
 	return 0;
 }
 
+/* This function read/write firmware */
+static enum rdwr_status
+mwifiex_pcie_rdwr_firmware(struct mwifiex_adapter *adapter, u8 doneflag)
+{
+	int ret, tries;
+	u8 ctrl_data;
+	struct pcie_service_card *card = adapter->card;
+	const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
+
+	ret = mwifiex_write_reg(adapter, reg->fw_dump_ctrl, FW_DUMP_HOST_READY);
+	if (ret) {
+		dev_err(adapter->dev, "PCIE write err\n");
+		return RDWR_STATUS_FAILURE;
+	}
+
+	for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
+		mwifiex_read_reg_byte(adapter, reg->fw_dump_ctrl, &ctrl_data);
+		if (ctrl_data == FW_DUMP_DONE)
+			return RDWR_STATUS_SUCCESS;
+		if (doneflag && ctrl_data == doneflag)
+			return RDWR_STATUS_DONE;
+		if (ctrl_data != FW_DUMP_HOST_READY) {
+			dev_info(adapter->dev,
+				 "The ctrl reg was changed, re-try again!\n");
+			mwifiex_write_reg(adapter, reg->fw_dump_ctrl,
+					  FW_DUMP_HOST_READY);
+			if (ret) {
+				dev_err(adapter->dev, "PCIE write err\n");
+				return RDWR_STATUS_FAILURE;
+			}
+		}
+		usleep_range(100, 200);
+	}
+
+	dev_err(adapter->dev, "Fail to pull ctrl_data\n");
+	return RDWR_STATUS_FAILURE;
+}
+
+/* This function dump firmware memory to file */
+static void mwifiex_pcie_fw_dump_work(struct mwifiex_adapter *adapter)
+{
+	struct pcie_service_card *card = adapter->card;
+	const struct mwifiex_pcie_card_reg *creg = card->pcie.reg;
+	unsigned int reg, reg_start, reg_end;
+	u8 *dbg_ptr, *end_ptr, dump_num, idx, i, read_reg, doneflag = 0;
+	enum rdwr_status stat;
+	u32 memory_size;
+	static char *env[] = { "DRIVER=mwifiex_pcie", "EVENT=fw_dump", NULL };
+
+	if (!card->pcie.supports_fw_dump)
+		return;
+
+	for (idx = 0; idx < ARRAY_SIZE(mem_type_mapping_tbl); idx++) {
+		struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx];
+
+		if (entry->mem_ptr) {
+			vfree(entry->mem_ptr);
+			entry->mem_ptr = NULL;
+		}
+		entry->mem_size = 0;
+	}
+
+	dev_info(adapter->dev, "== mwifiex firmware dump start ==\n");
+
+	/* Read the number of the memories which will dump */
+	stat = mwifiex_pcie_rdwr_firmware(adapter, doneflag);
+	if (stat == RDWR_STATUS_FAILURE)
+		goto done;
+
+	reg = creg->fw_dump_start;
+	mwifiex_read_reg_byte(adapter, reg, &dump_num);
+
+	/* Read the length of every memory which will dump */
+	for (idx = 0; idx < dump_num; idx++) {
+		struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx];
+
+		stat = mwifiex_pcie_rdwr_firmware(adapter, doneflag);
+		if (stat == RDWR_STATUS_FAILURE)
+			goto done;
+
+		memory_size = 0;
+		reg = creg->fw_dump_start;
+		for (i = 0; i < 4; i++) {
+			mwifiex_read_reg_byte(adapter, reg, &read_reg);
+			memory_size |= (read_reg << (i * 8));
+			reg++;
+		}
+
+		if (memory_size == 0) {
+			dev_info(adapter->dev, "Firmware dump Finished!\n");
+			break;
+		}
+
+		dev_info(adapter->dev,
+			 "%s_SIZE=0x%x\n", entry->mem_name, memory_size);
+		entry->mem_ptr = vmalloc(memory_size + 1);
+		entry->mem_size = memory_size;
+		if (!entry->mem_ptr) {
+			dev_err(adapter->dev,
+				"Vmalloc %s failed\n", entry->mem_name);
+			goto done;
+		}
+		dbg_ptr = entry->mem_ptr;
+		end_ptr = dbg_ptr + memory_size;
+
+		doneflag = entry->done_flag;
+		dev_info(adapter->dev, "Start %s output, please wait...\n",
+			 entry->mem_name);
+
+		do {
+			stat = mwifiex_pcie_rdwr_firmware(adapter, doneflag);
+			if (RDWR_STATUS_FAILURE == stat)
+				goto done;
+
+			reg_start = creg->fw_dump_start;
+			reg_end = creg->fw_dump_end;
+			for (reg = reg_start; reg <= reg_end; reg++) {
+				mwifiex_read_reg_byte(adapter, reg, dbg_ptr);
+				if (dbg_ptr < end_ptr)
+					dbg_ptr++;
+				else
+					dev_err(adapter->dev,
+						"Allocated buf not enough\n");
+			}
+
+			if (stat != RDWR_STATUS_DONE)
+				continue;
+
+			dev_info(adapter->dev, "%s done: size=0x%tx\n",
+				 entry->mem_name, dbg_ptr - entry->mem_ptr);
+			break;
+		} while (true);
+	}
+	dev_info(adapter->dev, "== mwifiex firmware dump end ==\n");
+
+	kobject_uevent_env(&adapter->wiphy->dev.kobj, KOBJ_CHANGE, env);
+
+done:
+	adapter->curr_mem_idx = 0;
+}
+
+static void mwifiex_pcie_work(struct work_struct *work)
+{
+	struct mwifiex_adapter *adapter =
+			container_of(work, struct mwifiex_adapter, iface_work);
+
+	if (test_and_clear_bit(MWIFIEX_IFACE_WORK_FW_DUMP,
+			       &adapter->iface_work_flags))
+		mwifiex_pcie_fw_dump_work(adapter);
+}
+
+/* This function dumps FW information */
+static void mwifiex_pcie_fw_dump(struct mwifiex_adapter *adapter)
+{
+	if (test_bit(MWIFIEX_IFACE_WORK_FW_DUMP, &adapter->iface_work_flags))
+		return;
+
+	set_bit(MWIFIEX_IFACE_WORK_FW_DUMP, &adapter->iface_work_flags);
+
+	schedule_work(&adapter->iface_work);
+}
+
 /*
  * This function initializes the PCI-E host memory space, WCB rings, etc.
  *
@@ -2342,6 +2525,8 @@ static int mwifiex_register_dev(struct mwifiex_adapter *adapter)
 
 	adapter->dev = &pdev->dev;
 	adapter->tx_buf_size = card->pcie.tx_buf_size;
+	adapter->mem_type_mapping_tbl = mem_type_mapping_tbl;
+	adapter->num_mem_types = ARRAY_SIZE(mem_type_mapping_tbl);
 	strcpy(adapter->fw_name, card->pcie.firmware);
 
 	return 0;
@@ -2394,6 +2579,8 @@ static struct mwifiex_if_ops pcie_ops = {
 	.cleanup_mpa_buf =		NULL,
 	.init_fw_port =			mwifiex_pcie_init_fw_port,
 	.clean_pcie_ring =		mwifiex_clean_pcie_ring_buf,
+	.fw_dump =			mwifiex_pcie_fw_dump,
+	.iface_work =			mwifiex_pcie_work,
 };
 
 /*