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  bridge: Update outdated comment on promiscuous mode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, 226 insertions, 9 deletions

diff --git a/drivers/net/wireless/mwifiex/sdio.c b/drivers/net/wireless/mwifiex/sdio.c
index 4ce3d7b33991..1770fa3fc1e6 100644
--- a/drivers/net/wireless/mwifiex/sdio.c
+++ b/drivers/net/wireless/mwifiex/sdio.c
@@ -1,7 +1,7 @@
 /*
  * Marvell Wireless LAN device driver: SDIO 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
@@ -50,6 +50,24 @@ static struct mwifiex_if_ops sdio_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},
+	{"APU", NULL, 0, 0xF3},
+	{"CIU", NULL, 0, 0xF4},
+	{"ICU", NULL, 0, 0xF5},
+	{"MAC", NULL, 0, 0xF6},
+	{"EXT7", NULL, 0, 0xF7},
+	{"EXT8", NULL, 0, 0xF8},
+	{"EXT9", NULL, 0, 0xF9},
+	{"EXT10", NULL, 0, 0xFA},
+	{"EXT11", NULL, 0, 0xFB},
+	{"EXT12", NULL, 0, 0xFC},
+	{"EXT13", NULL, 0, 0xFD},
+	{"EXTLAST", NULL, 0, 0xFE},
+};
+
 /*
  * SDIO probe.
  *
@@ -87,6 +105,7 @@ mwifiex_sdio_probe(struct sdio_func *func, const struct sdio_device_id *id)
 		card->tx_buf_size = data->tx_buf_size;
 		card->mp_tx_agg_buf_size = data->mp_tx_agg_buf_size;
 		card->mp_rx_agg_buf_size = data->mp_rx_agg_buf_size;
+		card->supports_fw_dump = data->supports_fw_dump;
 	}
 
 	sdio_claim_host(func);
@@ -179,6 +198,8 @@ mwifiex_sdio_remove(struct sdio_func *func)
 	if (!adapter || !adapter->priv_num)
 		return;
 
+	cancel_work_sync(&adapter->iface_work);
+
 	if (user_rmmod) {
 		if (adapter->is_suspended)
 			mwifiex_sdio_resume(adapter->dev);
@@ -1777,6 +1798,8 @@ static int mwifiex_register_dev(struct mwifiex_adapter *adapter)
 	adapter->dev = &func->dev;
 
 	strcpy(adapter->fw_name, card->firmware);
+	adapter->mem_type_mapping_tbl = mem_type_mapping_tbl;
+	adapter->num_mem_types = ARRAY_SIZE(mem_type_mapping_tbl);
 
 	return 0;
 }
@@ -1914,10 +1937,10 @@ mwifiex_update_mp_end_port(struct mwifiex_adapter *adapter, u16 port)
 		port, card->mp_data_port_mask);
 }
 
-static struct mmc_host *reset_host;
-static void sdio_card_reset_worker(struct work_struct *work)
+static void mwifiex_sdio_card_reset_work(struct mwifiex_adapter *adapter)
 {
-	struct mmc_host *target = reset_host;
+	struct sdio_mmc_card *card = adapter->card;
+	struct mmc_host *target = card->func->card->host;
 
 	/* The actual reset operation must be run outside of driver thread.
 	 * This is because mmc_remove_host() will cause the device to be
@@ -1931,17 +1954,210 @@ static void sdio_card_reset_worker(struct work_struct *work)
 	mmc_remove_host(target);
 	/* 20ms delay is based on experiment with sdhci controller */
 	mdelay(20);
+	target->rescan_entered = 0; /* rescan non-removable cards */
 	mmc_add_host(target);
 }
-static DECLARE_WORK(card_reset_work, sdio_card_reset_worker);
+
+/* This function read/write firmware */
+static enum
+rdwr_status mwifiex_sdio_rdwr_firmware(struct mwifiex_adapter *adapter,
+				       u8 doneflag)
+{
+	struct sdio_mmc_card *card = adapter->card;
+	int ret, tries;
+	u8 ctrl_data = 0;
+
+	sdio_writeb(card->func, FW_DUMP_HOST_READY, card->reg->fw_dump_ctrl,
+		    &ret);
+	if (ret) {
+		dev_err(adapter->dev, "SDIO Write ERR\n");
+		return RDWR_STATUS_FAILURE;
+	}
+	for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
+		ctrl_data = sdio_readb(card->func, card->reg->fw_dump_ctrl,
+				       &ret);
+		if (ret) {
+			dev_err(adapter->dev, "SDIO read err\n");
+			return RDWR_STATUS_FAILURE;
+		}
+		if (ctrl_data == FW_DUMP_DONE)
+			break;
+		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");
+			sdio_writeb(card->func, FW_DUMP_HOST_READY,
+				    card->reg->fw_dump_ctrl, &ret);
+			if (ret) {
+				dev_err(adapter->dev, "SDIO write err\n");
+				return RDWR_STATUS_FAILURE;
+			}
+		}
+		usleep_range(100, 200);
+	}
+	if (ctrl_data == FW_DUMP_HOST_READY) {
+		dev_err(adapter->dev, "Fail to pull ctrl_data\n");
+		return RDWR_STATUS_FAILURE;
+	}
+
+	return RDWR_STATUS_SUCCESS;
+}
+
+/* This function dump firmware memory to file */
+static void mwifiex_sdio_fw_dump_work(struct work_struct *work)
+{
+	struct mwifiex_adapter *adapter =
+			container_of(work, struct mwifiex_adapter, iface_work);
+	struct sdio_mmc_card *card = adapter->card;
+	int ret = 0;
+	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_sdio", "EVENT=fw_dump", NULL };
+
+	if (!card->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;
+	}
+
+	mwifiex_pm_wakeup_card(adapter);
+	sdio_claim_host(card->func);
+
+	dev_info(adapter->dev, "== mwifiex firmware dump start ==\n");
+
+	stat = mwifiex_sdio_rdwr_firmware(adapter, doneflag);
+	if (stat == RDWR_STATUS_FAILURE)
+		goto done;
+
+	reg = card->reg->fw_dump_start;
+	/* Read the number of the memories which will dump */
+	dump_num = sdio_readb(card->func, reg, &ret);
+	if (ret) {
+		dev_err(adapter->dev, "SDIO read memory length err\n");
+		goto done;
+	}
+
+	/* 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_sdio_rdwr_firmware(adapter, doneflag);
+		if (stat == RDWR_STATUS_FAILURE)
+			goto done;
+
+		memory_size = 0;
+		reg = card->reg->fw_dump_start;
+		for (i = 0; i < 4; i++) {
+			read_reg = sdio_readb(card->func, reg, &ret);
+			if (ret) {
+				dev_err(adapter->dev, "SDIO read err\n");
+				goto done;
+			}
+			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_sdio_rdwr_firmware(adapter, doneflag);
+			if (stat == RDWR_STATUS_FAILURE)
+				goto done;
+
+			reg_start = card->reg->fw_dump_start;
+			reg_end = card->reg->fw_dump_end;
+			for (reg = reg_start; reg <= reg_end; reg++) {
+				*dbg_ptr = sdio_readb(card->func, reg, &ret);
+				if (ret) {
+					dev_err(adapter->dev,
+						"SDIO read err\n");
+					goto done;
+				}
+				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 (1);
+	}
+	dev_info(adapter->dev, "== mwifiex firmware dump end ==\n");
+
+	kobject_uevent_env(&adapter->wiphy->dev.kobj, KOBJ_CHANGE, env);
+
+done:
+	sdio_release_host(card->func);
+	adapter->curr_mem_idx = 0;
+}
+
+static void mwifiex_sdio_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_CARD_RESET,
+			       &adapter->iface_work_flags))
+		mwifiex_sdio_card_reset_work(adapter);
+	if (test_and_clear_bit(MWIFIEX_IFACE_WORK_FW_DUMP,
+			       &adapter->iface_work_flags))
+		mwifiex_sdio_fw_dump_work(work);
+}
 
 /* This function resets the card */
 static void mwifiex_sdio_card_reset(struct mwifiex_adapter *adapter)
 {
-	struct sdio_mmc_card *card = adapter->card;
+	if (test_bit(MWIFIEX_IFACE_WORK_CARD_RESET, &adapter->iface_work_flags))
+		return;
+
+	set_bit(MWIFIEX_IFACE_WORK_CARD_RESET, &adapter->iface_work_flags);
+
+	schedule_work(&adapter->iface_work);
+}
+
+/* This function dumps FW information */
+static void mwifiex_sdio_fw_dump(struct mwifiex_adapter *adapter)
+{
+	if (test_bit(MWIFIEX_IFACE_WORK_FW_DUMP, &adapter->iface_work_flags))
+		return;
 
-	reset_host = card->func->card->host;
-	schedule_work(&card_reset_work);
+	set_bit(MWIFIEX_IFACE_WORK_FW_DUMP, &adapter->iface_work_flags);
+	schedule_work(&adapter->iface_work);
 }
 
 static struct mwifiex_if_ops sdio_ops = {
@@ -1964,6 +2180,8 @@ static struct mwifiex_if_ops sdio_ops = {
 	.cmdrsp_complete = mwifiex_sdio_cmdrsp_complete,
 	.event_complete = mwifiex_sdio_event_complete,
 	.card_reset = mwifiex_sdio_card_reset,
+	.iface_work = mwifiex_sdio_work,
+	.fw_dump = mwifiex_sdio_fw_dump,
 };
 
 /*
@@ -2001,7 +2219,6 @@ mwifiex_sdio_cleanup_module(void)
 	/* Set the flag as user is removing this module. */
 	user_rmmod = 1;
 
-	cancel_work_sync(&card_reset_work);
 	sdio_unregister_driver(&mwifiex_sdio);
 }