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

Pull networking changes from David Miller:

 1) GRE now works over ipv6, from Dmitry Kozlov.

 2) Make SCTP more network namespace aware, from Eric Biederman.

 3) TEAM driver now works with non-ethernet devices, from Jiri Pirko.

 4) Make openvswitch network namespace aware, from Pravin B Shelar.

 5) IPV6 NAT implementation, from Patrick McHardy.

 6) Server side support for TCP Fast Open, from Jerry Chu and others.

 7) Packet BPF filter supports MOD and XOR, from Eric Dumazet and Daniel
    Borkmann.

 8) Increate the loopback default MTU to 64K, from Eric Dumazet.

 9) Use a per-task rather than per-socket page fragment allocator for
    outgoing networking traffic.  This benefits processes that have very
    many mostly idle sockets, which is quite common.

    From Eric Dumazet.

10) Use up to 32K for page fragment allocations, with fallbacks to
    smaller sizes when higher order page allocations fail.  Benefits are
    a) less segments for driver to process b) less calls to page
    allocator c) less waste of space.

    From Eric Dumazet.

11) Allow GRO to be used on GRE tunnels, from Eric Dumazet.

12) VXLAN device driver, one way to handle VLAN issues such as the
    limitation of 4096 VLAN IDs yet still have some level of isolation.
    From Stephen Hemminger.

13) As usual there is a large boatload of driver changes, with the scale
    perhaps tilted towards the wireless side this time around.

Fix up various fairly trivial conflicts, mostly caused by the user
namespace changes.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1012 commits)
  hyperv: Add buffer for extended info after the RNDIS response message.
  hyperv: Report actual status in receive completion packet
  hyperv: Remove extra allocated space for recv_pkt_list elements
  hyperv: Fix page buffer handling in rndis_filter_send_request()
  hyperv: Fix the missing return value in rndis_filter_set_packet_filter()
  hyperv: Fix the max_xfer_size in RNDIS initialization
  vxlan: put UDP socket in correct namespace
  vxlan: Depend on CONFIG_INET
  sfc: Fix the reported priorities of different filter types
  sfc: Remove EFX_FILTER_FLAG_RX_OVERRIDE_IP
  sfc: Fix loopback self-test with separate_tx_channels=1
  sfc: Fix MCDI structure field lookup
  sfc: Add parentheses around use of bitfield macro arguments
  sfc: Fix null function pointer in efx_sriov_channel_type
  vxlan: virtual extensible lan
  igmp: export symbol ip_mc_leave_group
  netlink: add attributes to fdb interface
  tg3: unconditionally select HWMON support when tg3 is enabled.
  Revert "net: ti cpsw ethernet: allow reading phy interface mode from DT"
  gre: fix sparse warning
  ...

1 files changed, 71 insertions, 41 deletions

diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c b/drivers/net/wireless/iwlwifi/pcie/trans.c
index 063ecaf..fe0fffd 100644
--- a/drivers/net/wireless/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/iwlwifi/pcie/trans.c
@@ -216,7 +216,7 @@ static int iwl_rx_init(struct iwl_trans *trans)
 	rxq->free_count = 0;
 	spin_unlock_irqrestore(&rxq->lock, flags);
 
-	iwlagn_rx_replenish(trans);
+	iwl_rx_replenish(trans);
 
 	iwl_trans_rx_hw_init(trans, rxq);
 
@@ -492,10 +492,11 @@ static void iwl_tx_queue_free(struct iwl_trans *trans, int txq_id)
 	iwl_tx_queue_unmap(trans, txq_id);
 
 	/* De-alloc array of command/tx buffers */
-
 	if (txq_id == trans_pcie->cmd_queue)
-		for (i = 0; i < txq->q.n_window; i++)
+		for (i = 0; i < txq->q.n_window; i++) {
 			kfree(txq->entries[i].cmd);
+			kfree(txq->entries[i].copy_cmd);
+		}
 
 	/* De-alloc circular buffer of TFDs */
 	if (txq->q.n_bd) {
@@ -851,10 +852,8 @@ static int iwl_nic_init(struct iwl_trans *trans)
 
 	iwl_op_mode_nic_config(trans->op_mode);
 
-#ifndef CONFIG_IWLWIFI_IDI
 	/* Allocate the RX queue, or reset if it is already allocated */
 	iwl_rx_init(trans);
-#endif
 
 	/* Allocate or reset and init all Tx and Command queues */
 	if (iwl_tx_init(trans))
@@ -893,6 +892,7 @@ static int iwl_set_hw_ready(struct iwl_trans *trans)
 static int iwl_prepare_card_hw(struct iwl_trans *trans)
 {
 	int ret;
+	int t = 0;
 
 	IWL_DEBUG_INFO(trans, "iwl_trans_prepare_card_hw enter\n");
 
@@ -905,30 +905,25 @@ static int iwl_prepare_card_hw(struct iwl_trans *trans)
 	iwl_set_bit(trans, CSR_HW_IF_CONFIG_REG,
 		    CSR_HW_IF_CONFIG_REG_PREPARE);
 
-	ret = iwl_poll_bit(trans, CSR_HW_IF_CONFIG_REG,
-			   ~CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE,
-			   CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE, 150000);
+	do {
+		ret = iwl_set_hw_ready(trans);
+		if (ret >= 0)
+			return 0;
 
-	if (ret < 0)
-		return ret;
+		usleep_range(200, 1000);
+		t += 200;
+	} while (t < 150000);
 
-	/* HW should be ready by now, check again. */
-	ret = iwl_set_hw_ready(trans);
-	if (ret >= 0)
-		return 0;
 	return ret;
 }
 
 /*
  * ucode
  */
-static int iwl_load_section(struct iwl_trans *trans, u8 section_num,
-			    const struct fw_desc *section)
+static int iwl_load_firmware_chunk(struct iwl_trans *trans, u32 dst_addr,
+				   dma_addr_t phy_addr, u32 byte_cnt)
 {
 	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
-	dma_addr_t phy_addr = section->p_addr;
-	u32 byte_cnt = section->len;
-	u32 dst_addr = section->offset;
 	int ret;
 
 	trans_pcie->ucode_write_complete = false;
@@ -942,8 +937,8 @@ static int iwl_load_section(struct iwl_trans *trans, u8 section_num,
 			   dst_addr);
 
 	iwl_write_direct32(trans,
-		FH_TFDIB_CTRL0_REG(FH_SRVC_CHNL),
-		phy_addr & FH_MEM_TFDIB_DRAM_ADDR_LSB_MSK);
+			   FH_TFDIB_CTRL0_REG(FH_SRVC_CHNL),
+			   phy_addr & FH_MEM_TFDIB_DRAM_ADDR_LSB_MSK);
 
 	iwl_write_direct32(trans,
 			   FH_TFDIB_CTRL1_REG(FH_SRVC_CHNL),
@@ -962,33 +957,64 @@ static int iwl_load_section(struct iwl_trans *trans, u8 section_num,
 			   FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_DISABLE	|
 			   FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_ENDTFD);
 
-	IWL_DEBUG_FW(trans, "[%d] uCode section being loaded...\n",
-		     section_num);
 	ret = wait_event_timeout(trans_pcie->ucode_write_waitq,
 				 trans_pcie->ucode_write_complete, 5 * HZ);
 	if (!ret) {
-		IWL_ERR(trans, "Could not load the [%d] uCode section\n",
-			section_num);
+		IWL_ERR(trans, "Failed to load firmware chunk!\n");
 		return -ETIMEDOUT;
 	}
 
 	return 0;
 }
 
-static int iwl_load_given_ucode(struct iwl_trans *trans,
-				const struct fw_img *image)
+static int iwl_load_section(struct iwl_trans *trans, u8 section_num,
+			    const struct fw_desc *section)
 {
+	u8 *v_addr;
+	dma_addr_t p_addr;
+	u32 offset;
 	int ret = 0;
-		int i;
 
-		for (i = 0; i < IWL_UCODE_SECTION_MAX; i++) {
-			if (!image->sec[i].p_addr)
-				break;
+	IWL_DEBUG_FW(trans, "[%d] uCode section being loaded...\n",
+		     section_num);
+
+	v_addr = dma_alloc_coherent(trans->dev, PAGE_SIZE, &p_addr, GFP_KERNEL);
+	if (!v_addr)
+		return -ENOMEM;
+
+	for (offset = 0; offset < section->len; offset += PAGE_SIZE) {
+		u32 copy_size;
+
+		copy_size = min_t(u32, PAGE_SIZE, section->len - offset);
 
-			ret = iwl_load_section(trans, i, &image->sec[i]);
-			if (ret)
-				return ret;
+		memcpy(v_addr, (u8 *)section->data + offset, copy_size);
+		ret = iwl_load_firmware_chunk(trans, section->offset + offset,
+					      p_addr, copy_size);
+		if (ret) {
+			IWL_ERR(trans,
+				"Could not load the [%d] uCode section\n",
+				section_num);
+			break;
 		}
+	}
+
+	dma_free_coherent(trans->dev, PAGE_SIZE, v_addr, p_addr);
+	return ret;
+}
+
+static int iwl_load_given_ucode(struct iwl_trans *trans,
+				const struct fw_img *image)
+{
+	int i, ret = 0;
+
+	for (i = 0; i < IWL_UCODE_SECTION_MAX; i++) {
+		if (!image->sec[i].data)
+			break;
+
+		ret = iwl_load_section(trans, i, &image->sec[i]);
+		if (ret)
+			return ret;
+	}
 
 	/* Remove all resets to allow NIC to operate */
 	iwl_write32(trans, CSR_RESET, 0);
@@ -1181,9 +1207,8 @@ static void iwl_trans_pcie_stop_device(struct iwl_trans *trans)
 	 */
 	if (test_bit(STATUS_DEVICE_ENABLED, &trans_pcie->status)) {
 		iwl_trans_tx_stop(trans);
-#ifndef CONFIG_IWLWIFI_IDI
 		iwl_trans_rx_stop(trans);
-#endif
+
 		/* Power-down device's busmaster DMA clocks */
 		iwl_write_prph(trans, APMG_CLK_DIS_REG,
 			       APMG_CLK_VAL_DMA_CLK_RQT);
@@ -1454,14 +1479,16 @@ static void iwl_trans_pcie_stop_hw(struct iwl_trans *trans,
 	bool hw_rfkill;
 	unsigned long flags;
 
+	spin_lock_irqsave(&trans_pcie->irq_lock, flags);
+	iwl_disable_interrupts(trans);
+	spin_unlock_irqrestore(&trans_pcie->irq_lock, flags);
+
 	iwl_apm_stop(trans);
 
 	spin_lock_irqsave(&trans_pcie->irq_lock, flags);
 	iwl_disable_interrupts(trans);
 	spin_unlock_irqrestore(&trans_pcie->irq_lock, flags);
 
-	iwl_write32(trans, CSR_INT, 0xFFFFFFFF);
-
 	if (!op_mode_leaving) {
 		/*
 		 * Even if we stop the HW, we still want the RF kill
@@ -1549,9 +1576,8 @@ void iwl_trans_pcie_free(struct iwl_trans *trans)
 	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
 
 	iwl_trans_pcie_tx_free(trans);
-#ifndef CONFIG_IWLWIFI_IDI
 	iwl_trans_pcie_rx_free(trans);
-#endif
+
 	if (trans_pcie->irq_requested == true) {
 		free_irq(trans_pcie->irq, trans);
 		iwl_free_isr_ict(trans);
@@ -1769,7 +1795,7 @@ void iwl_dump_csr(struct iwl_trans *trans)
 #define DEBUGFS_ADD_FILE(name, parent, mode) do {			\
 	if (!debugfs_create_file(#name, mode, parent, trans,		\
 				 &iwl_dbgfs_##name##_ops))		\
-		return -ENOMEM;						\
+		goto err;						\
 } while (0)
 
 /* file operation */
@@ -2033,6 +2059,10 @@ static int iwl_trans_pcie_dbgfs_register(struct iwl_trans *trans,
 	DEBUGFS_ADD_FILE(fh_reg, dir, S_IRUSR);
 	DEBUGFS_ADD_FILE(fw_restart, dir, S_IWUSR);
 	return 0;
+
+err:
+	IWL_ERR(trans, "failed to create the trans debugfs entry\n");
+	return -ENOMEM;
 }
 #else
 static int iwl_trans_pcie_dbgfs_register(struct iwl_trans *trans,