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

Pull networking updates from David Miller:

 1) Support ipv6 checksum offload in sunvnet driver, from Shannon
    Nelson.

 2) Move to RB-tree instead of custom AVL code in inetpeer, from Eric
    Dumazet.

 3) Allow generic XDP to work on virtual devices, from John Fastabend.

 4) Add bpf device maps and XDP_REDIRECT, which can be used to build
    arbitrary switching frameworks using XDP. From John Fastabend.

 5) Remove UFO offloads from the tree, gave us little other than bugs.

 6) Remove the IPSEC flow cache, from Florian Westphal.

 7) Support ipv6 route offload in mlxsw driver.

 8) Support VF representors in bnxt_en, from Sathya Perla.

 9) Add support for forward error correction modes to ethtool, from
    Vidya Sagar Ravipati.

10) Add time filter for packet scheduler action dumping, from Jamal Hadi
    Salim.

11) Extend the zerocopy sendmsg() used by virtio and tap to regular
    sockets via MSG_ZEROCOPY. From Willem de Bruijn.

12) Significantly rework value tracking in the BPF verifier, from Edward
    Cree.

13) Add new jump instructions to eBPF, from Daniel Borkmann.

14) Rework rtnetlink plumbing so that operations can be run without
    taking the RTNL semaphore. From Florian Westphal.

15) Support XDP in tap driver, from Jason Wang.

16) Add 32-bit eBPF JIT for ARM, from Shubham Bansal.

17) Add Huawei hinic ethernet driver.

18) Allow to report MD5 keys in TCP inet_diag dumps, from Ivan
    Delalande.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1780 commits)
  i40e: point wb_desc at the nvm_wb_desc during i40e_read_nvm_aq
  i40e: avoid NVM acquire deadlock during NVM update
  drivers: net: xgene: Remove return statement from void function
  drivers: net: xgene: Configure tx/rx delay for ACPI
  drivers: net: xgene: Read tx/rx delay for ACPI
  rocker: fix kcalloc parameter order
  rds: Fix non-atomic operation on shared flag variable
  net: sched: don't use GFP_KERNEL under spin lock
  vhost_net: correctly check tx avail during rx busy polling
  net: mdio-mux: add mdio_mux parameter to mdio_mux_init()
  rxrpc: Make service connection lookup always check for retry
  net: stmmac: Delete dead code for MDIO registration
  gianfar: Fix Tx flow control deactivation
  cxgb4: Ignore MPS_TX_INT_CAUSE[Bubble] for T6
  cxgb4: Fix pause frame count in t4_get_port_stats
  cxgb4: fix memory leak
  tun: rename generic_xdp to skb_xdp
  tun: reserve extra headroom only when XDP is set
  net: dsa: bcm_sf2: Configure IMP port TC2QOS mapping
  net: dsa: bcm_sf2: Advertise number of egress queues
  ...

1 files changed, 272 insertions, 0 deletions

diff --git a/drivers/net/ethernet/huawei/hinic/hinic_hw_if.h b/drivers/net/ethernet/huawei/hinic/hinic_hw_if.h
new file mode 100644
index 000000000000..5b4760c0e9f5
--- /dev/null
+++ b/drivers/net/ethernet/huawei/hinic/hinic_hw_if.h
@@ -0,0 +1,272 @@
+/*
+ * Huawei HiNIC PCI Express Linux driver
+ * Copyright(c) 2017 Huawei Technologies Co., Ltd
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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.
+ *
+ */
+
+#ifndef HINIC_HW_IF_H
+#define HINIC_HW_IF_H
+
+#include <linux/pci.h>
+#include <linux/io.h>
+#include <linux/types.h>
+#include <asm/byteorder.h>
+
+#define HINIC_DMA_ATTR_ST_SHIFT                                 0
+#define HINIC_DMA_ATTR_AT_SHIFT                                 8
+#define HINIC_DMA_ATTR_PH_SHIFT                                 10
+#define HINIC_DMA_ATTR_NO_SNOOPING_SHIFT                        12
+#define HINIC_DMA_ATTR_TPH_EN_SHIFT                             13
+
+#define HINIC_DMA_ATTR_ST_MASK                                  0xFF
+#define HINIC_DMA_ATTR_AT_MASK                                  0x3
+#define HINIC_DMA_ATTR_PH_MASK                                  0x3
+#define HINIC_DMA_ATTR_NO_SNOOPING_MASK                         0x1
+#define HINIC_DMA_ATTR_TPH_EN_MASK                              0x1
+
+#define HINIC_DMA_ATTR_SET(val, member)                         \
+	(((u32)(val) & HINIC_DMA_ATTR_##member##_MASK) <<       \
+	 HINIC_DMA_ATTR_##member##_SHIFT)
+
+#define HINIC_DMA_ATTR_CLEAR(val, member)                       \
+	((val) & (~(HINIC_DMA_ATTR_##member##_MASK              \
+	 << HINIC_DMA_ATTR_##member##_SHIFT)))
+
+#define HINIC_FA0_FUNC_IDX_SHIFT                                0
+#define HINIC_FA0_PF_IDX_SHIFT                                  10
+#define HINIC_FA0_PCI_INTF_IDX_SHIFT                            14
+/* reserved members - off 16 */
+#define HINIC_FA0_FUNC_TYPE_SHIFT                               24
+
+#define HINIC_FA0_FUNC_IDX_MASK                                 0x3FF
+#define HINIC_FA0_PF_IDX_MASK                                   0xF
+#define HINIC_FA0_PCI_INTF_IDX_MASK                             0x3
+#define HINIC_FA0_FUNC_TYPE_MASK                                0x1
+
+#define HINIC_FA0_GET(val, member)                              \
+	(((val) >> HINIC_FA0_##member##_SHIFT) & HINIC_FA0_##member##_MASK)
+
+#define HINIC_FA1_AEQS_PER_FUNC_SHIFT                           8
+/* reserved members - off 10 */
+#define HINIC_FA1_CEQS_PER_FUNC_SHIFT                           12
+/* reserved members - off 15 */
+#define HINIC_FA1_IRQS_PER_FUNC_SHIFT                           20
+#define HINIC_FA1_DMA_ATTR_PER_FUNC_SHIFT                       24
+/* reserved members - off 27 */
+#define HINIC_FA1_INIT_STATUS_SHIFT                             30
+
+#define HINIC_FA1_AEQS_PER_FUNC_MASK                            0x3
+#define HINIC_FA1_CEQS_PER_FUNC_MASK                            0x7
+#define HINIC_FA1_IRQS_PER_FUNC_MASK                            0xF
+#define HINIC_FA1_DMA_ATTR_PER_FUNC_MASK                        0x7
+#define HINIC_FA1_INIT_STATUS_MASK                              0x1
+
+#define HINIC_FA1_GET(val, member)                              \
+	(((val) >> HINIC_FA1_##member##_SHIFT) & HINIC_FA1_##member##_MASK)
+
+#define HINIC_FA4_OUTBOUND_STATE_SHIFT                          0
+#define HINIC_FA4_DB_STATE_SHIFT                                1
+
+#define HINIC_FA4_OUTBOUND_STATE_MASK                           0x1
+#define HINIC_FA4_DB_STATE_MASK                                 0x1
+
+#define HINIC_FA4_GET(val, member)                              \
+	(((val) >> HINIC_FA4_##member##_SHIFT) & HINIC_FA4_##member##_MASK)
+
+#define HINIC_FA4_SET(val, member)                              \
+	((((u32)val) & HINIC_FA4_##member##_MASK) << HINIC_FA4_##member##_SHIFT)
+
+#define HINIC_FA4_CLEAR(val, member)                            \
+	((val) & (~(HINIC_FA4_##member##_MASK << HINIC_FA4_##member##_SHIFT)))
+
+#define HINIC_FA5_PF_ACTION_SHIFT                               0
+#define HINIC_FA5_PF_ACTION_MASK                                0xFFFF
+
+#define HINIC_FA5_SET(val, member)                              \
+	(((u32)(val) & HINIC_FA5_##member##_MASK) << HINIC_FA5_##member##_SHIFT)
+
+#define HINIC_FA5_CLEAR(val, member)                            \
+	((val) & (~(HINIC_FA5_##member##_MASK << HINIC_FA5_##member##_SHIFT)))
+
+#define HINIC_PPF_ELECTION_IDX_SHIFT                            0
+#define HINIC_PPF_ELECTION_IDX_MASK                             0x1F
+
+#define HINIC_PPF_ELECTION_SET(val, member)                     \
+	(((u32)(val) & HINIC_PPF_ELECTION_##member##_MASK) <<   \
+	 HINIC_PPF_ELECTION_##member##_SHIFT)
+
+#define HINIC_PPF_ELECTION_GET(val, member)                     \
+	(((val) >> HINIC_PPF_ELECTION_##member##_SHIFT) &       \
+	 HINIC_PPF_ELECTION_##member##_MASK)
+
+#define HINIC_PPF_ELECTION_CLEAR(val, member)                   \
+	((val) & (~(HINIC_PPF_ELECTION_##member##_MASK          \
+	 << HINIC_PPF_ELECTION_##member##_SHIFT)))
+
+#define HINIC_MSIX_PENDING_LIMIT_SHIFT                          0
+#define HINIC_MSIX_COALESC_TIMER_SHIFT                          8
+#define HINIC_MSIX_LLI_TIMER_SHIFT                              16
+#define HINIC_MSIX_LLI_CREDIT_SHIFT                             24
+#define HINIC_MSIX_RESEND_TIMER_SHIFT                           29
+
+#define HINIC_MSIX_PENDING_LIMIT_MASK                           0xFF
+#define HINIC_MSIX_COALESC_TIMER_MASK                           0xFF
+#define HINIC_MSIX_LLI_TIMER_MASK                               0xFF
+#define HINIC_MSIX_LLI_CREDIT_MASK                              0x1F
+#define HINIC_MSIX_RESEND_TIMER_MASK                            0x7
+
+#define HINIC_MSIX_ATTR_SET(val, member)                        \
+	(((u32)(val) & HINIC_MSIX_##member##_MASK) <<           \
+	 HINIC_MSIX_##member##_SHIFT)
+
+#define HINIC_MSIX_ATTR_GET(val, member)                        \
+	(((val) >> HINIC_MSIX_##member##_SHIFT) &               \
+	 HINIC_MSIX_##member##_MASK)
+
+#define HINIC_MSIX_CNT_RESEND_TIMER_SHIFT                       29
+
+#define HINIC_MSIX_CNT_RESEND_TIMER_MASK                        0x1
+
+#define HINIC_MSIX_CNT_SET(val, member)                         \
+	(((u32)(val) & HINIC_MSIX_CNT_##member##_MASK) <<       \
+	 HINIC_MSIX_CNT_##member##_SHIFT)
+
+#define HINIC_HWIF_NUM_AEQS(hwif)       ((hwif)->attr.num_aeqs)
+#define HINIC_HWIF_NUM_CEQS(hwif)       ((hwif)->attr.num_ceqs)
+#define HINIC_HWIF_NUM_IRQS(hwif)       ((hwif)->attr.num_irqs)
+#define HINIC_HWIF_FUNC_IDX(hwif)       ((hwif)->attr.func_idx)
+#define HINIC_HWIF_PCI_INTF(hwif)       ((hwif)->attr.pci_intf_idx)
+#define HINIC_HWIF_PF_IDX(hwif)         ((hwif)->attr.pf_idx)
+
+#define HINIC_FUNC_TYPE(hwif)           ((hwif)->attr.func_type)
+#define HINIC_IS_PF(hwif)               (HINIC_FUNC_TYPE(hwif) == HINIC_PF)
+#define HINIC_IS_PPF(hwif)              (HINIC_FUNC_TYPE(hwif) == HINIC_PPF)
+
+#define HINIC_PCI_CFG_REGS_BAR          0
+#define HINIC_PCI_DB_BAR                4
+
+#define HINIC_PCIE_ST_DISABLE           0
+#define HINIC_PCIE_AT_DISABLE           0
+#define HINIC_PCIE_PH_DISABLE           0
+
+#define HINIC_EQ_MSIX_PENDING_LIMIT_DEFAULT     0       /* Disabled */
+#define HINIC_EQ_MSIX_COALESC_TIMER_DEFAULT     0xFF    /* max */
+#define HINIC_EQ_MSIX_LLI_TIMER_DEFAULT         0       /* Disabled */
+#define HINIC_EQ_MSIX_LLI_CREDIT_LIMIT_DEFAULT  0       /* Disabled */
+#define HINIC_EQ_MSIX_RESEND_TIMER_DEFAULT      7       /* max */
+
+enum hinic_pcie_nosnoop {
+	HINIC_PCIE_SNOOP        = 0,
+	HINIC_PCIE_NO_SNOOP     = 1,
+};
+
+enum hinic_pcie_tph {
+	HINIC_PCIE_TPH_DISABLE  = 0,
+	HINIC_PCIE_TPH_ENABLE   = 1,
+};
+
+enum hinic_func_type {
+	HINIC_PF        = 0,
+	HINIC_PPF       = 2,
+};
+
+enum hinic_mod_type {
+	HINIC_MOD_COMM  = 0,    /* HW communication module */
+	HINIC_MOD_L2NIC = 1,    /* L2NIC module */
+	HINIC_MOD_CFGM  = 7,    /* Configuration module */
+
+	HINIC_MOD_MAX   = 15
+};
+
+enum hinic_node_id {
+	HINIC_NODE_ID_MGMT = 21,
+};
+
+enum hinic_pf_action {
+	HINIC_PF_MGMT_INIT = 0x0,
+
+	HINIC_PF_MGMT_ACTIVE = 0x11,
+};
+
+enum hinic_outbound_state {
+	HINIC_OUTBOUND_ENABLE  = 0,
+	HINIC_OUTBOUND_DISABLE = 1,
+};
+
+enum hinic_db_state {
+	HINIC_DB_ENABLE  = 0,
+	HINIC_DB_DISABLE = 1,
+};
+
+struct hinic_func_attr {
+	u16                     func_idx;
+	u8                      pf_idx;
+	u8                      pci_intf_idx;
+
+	enum hinic_func_type    func_type;
+
+	u8                      ppf_idx;
+
+	u16                     num_irqs;
+	u8                      num_aeqs;
+	u8                      num_ceqs;
+
+	u8                      num_dma_attr;
+};
+
+struct hinic_hwif {
+	struct pci_dev          *pdev;
+	void __iomem            *cfg_regs_bar;
+
+	struct hinic_func_attr  attr;
+};
+
+static inline u32 hinic_hwif_read_reg(struct hinic_hwif *hwif, u32 reg)
+{
+	return be32_to_cpu(readl(hwif->cfg_regs_bar + reg));
+}
+
+static inline void hinic_hwif_write_reg(struct hinic_hwif *hwif, u32 reg,
+					u32 val)
+{
+	writel(cpu_to_be32(val), hwif->cfg_regs_bar + reg);
+}
+
+int hinic_msix_attr_set(struct hinic_hwif *hwif, u16 msix_index,
+			u8 pending_limit, u8 coalesc_timer,
+			u8 lli_timer_cfg, u8 lli_credit_limit,
+			u8 resend_timer);
+
+int hinic_msix_attr_get(struct hinic_hwif *hwif, u16 msix_index,
+			u8 *pending_limit, u8 *coalesc_timer_cfg,
+			u8 *lli_timer, u8 *lli_credit_limit,
+			u8 *resend_timer);
+
+int hinic_msix_attr_cnt_clear(struct hinic_hwif *hwif, u16 msix_index);
+
+void hinic_set_pf_action(struct hinic_hwif *hwif, enum hinic_pf_action action);
+
+enum hinic_outbound_state hinic_outbound_state_get(struct hinic_hwif *hwif);
+
+void hinic_outbound_state_set(struct hinic_hwif *hwif,
+			      enum hinic_outbound_state outbound_state);
+
+enum hinic_db_state hinic_db_state_get(struct hinic_hwif *hwif);
+
+void hinic_db_state_set(struct hinic_hwif *hwif,
+			enum hinic_db_state db_state);
+
+int hinic_init_hwif(struct hinic_hwif *hwif, struct pci_dev *pdev);
+
+void hinic_free_hwif(struct hinic_hwif *hwif);
+
+#endif