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

Pull networking updates from David Miller:
 "Highlights:

   1) Support TX_RING in AF_PACKET TPACKET_V3 mode, from Sowmini
      Varadhan.

   2) Simplify classifier state on sk_buff in order to shrink it a bit.
      From Willem de Bruijn.

   3) Introduce SIPHASH and it's usage for secure sequence numbers and
      syncookies. From Jason A. Donenfeld.

   4) Reduce CPU usage for ICMP replies we are going to limit or
      suppress, from Jesper Dangaard Brouer.

   5) Introduce Shared Memory Communications socket layer, from Ursula
      Braun.

   6) Add RACK loss detection and allow it to actually trigger fast
      recovery instead of just assisting after other algorithms have
      triggered it. From Yuchung Cheng.

   7) Add xmit_more and BQL support to mvneta driver, from Simon Guinot.

   8) skb_cow_data avoidance in esp4 and esp6, from Steffen Klassert.

   9) Export MPLS packet stats via netlink, from Robert Shearman.

  10) Significantly improve inet port bind conflict handling, especially
      when an application is restarted and changes it's setting of
      reuseport. From Josef Bacik.

  11) Implement TX batching in vhost_net, from Jason Wang.

  12) Extend the dummy device so that VF (virtual function) features,
      such as configuration, can be more easily tested. From Phil
      Sutter.

  13) Avoid two atomic ops per page on x86 in bnx2x driver, from Eric
      Dumazet.

  14) Add new bpf MAP, implementing a longest prefix match trie. From
      Daniel Mack.

  15) Packet sample offloading support in mlxsw driver, from Yotam Gigi.

  16) Add new aquantia driver, from David VomLehn.

  17) Add bpf tracepoints, from Daniel Borkmann.

  18) Add support for port mirroring to b53 and bcm_sf2 drivers, from
      Florian Fainelli.

  19) Remove custom busy polling in many drivers, it is done in the core
      networking since 4.5 times. From Eric Dumazet.

  20) Support XDP adjust_head in virtio_net, from John Fastabend.

  21) Fix several major holes in neighbour entry confirmation, from
      Julian Anastasov.

  22) Add XDP support to bnxt_en driver, from Michael Chan.

  23) VXLAN offloads for enic driver, from Govindarajulu Varadarajan.

  24) Add IPVTAP driver (IP-VLAN based tap driver) from Sainath Grandhi.

  25) Support GRO in IPSEC protocols, from Steffen Klassert"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1764 commits)
  Revert "ath10k: Search SMBIOS for OEM board file extension"
  net: socket: fix recvmmsg not returning error from sock_error
  bnxt_en: use eth_hw_addr_random()
  bpf: fix unlocking of jited image when module ronx not set
  arch: add ARCH_HAS_SET_MEMORY config
  net: napi_watchdog() can use napi_schedule_irqoff()
  tcp: Revert "tcp: tcp_probe: use spin_lock_bh()"
  net/hsr: use eth_hw_addr_random()
  net: mvpp2: enable building on 64-bit platforms
  net: mvpp2: switch to build_skb() in the RX path
  net: mvpp2: simplify MVPP2_PRS_RI_* definitions
  net: mvpp2: fix indentation of MVPP2_EXT_GLOBAL_CTRL_DEFAULT
  net: mvpp2: remove unused register definitions
  net: mvpp2: simplify mvpp2_bm_bufs_add()
  net: mvpp2: drop useless fields in mvpp2_bm_pool and related code
  net: mvpp2: remove unused 'tx_skb' field of 'struct mvpp2_tx_queue'
  net: mvpp2: release reference to txq_cpu[] entry after unmapping
  net: mvpp2: handle too large value in mvpp2_rx_time_coal_set()
  net: mvpp2: handle too large value handling in mvpp2_rx_pkts_coal_set()
  net: mvpp2: remove useless arguments in mvpp2_rx_{pkts, time}_coal_set
  ...

1 files changed, 65 insertions, 15 deletions

diff --git a/drivers/net/ethernet/broadcom/bcmsysport.h b/drivers/net/ethernet/broadcom/bcmsysport.h
index 1c82e3da69a7..863ddd7870b7 100644
--- a/drivers/net/ethernet/broadcom/bcmsysport.h
+++ b/drivers/net/ethernet/broadcom/bcmsysport.h
@@ -127,6 +127,10 @@ struct bcm_rsb {
 #define INTRL2_0_DESC_ALLOC_ERR		(1 << 10)
 #define INTRL2_0_UNEXP_PKTSIZE_ACK	(1 << 11)
 
+/* SYSTEMPORT Lite groups the TX queues interrupts on instance 0 */
+#define INTRL2_0_TDMA_MBDONE_SHIFT	12
+#define INTRL2_0_TDMA_MBDONE_MASK	(0xffff << INTRL2_0_TDMA_MBDONE_SHIFT)
+
 /* RXCHK offset and defines */
 #define SYS_PORT_RXCHK_OFFSET		0x300
 
@@ -176,7 +180,9 @@ struct bcm_rsb {
 #define  RBUF_OK_TO_SEND_MASK		0xff
 #define  RBUF_CRC_REPLACE		(1 << 20)
 #define  RBUF_OK_TO_SEND_MODE		(1 << 21)
-#define  RBUF_RSB_SWAP			(1 << 22)
+/* SYSTEMPORT Lite uses two bits here */
+#define  RBUF_RSB_SWAP0			(1 << 22)
+#define  RBUF_RSB_SWAP1			(1 << 23)
 #define  RBUF_ACPI_EN			(1 << 23)
 
 #define RBUF_PKT_RDY_THRESH		0x04
@@ -247,6 +253,7 @@ struct bcm_rsb {
 #define  MIB_RUNT_CNT_RST		(1 << 1)
 #define  MIB_TX_CNT_RST			(1 << 2)
 
+/* These offsets are valid for SYSTEMPORT and SYSTEMPORT Lite */
 #define UMAC_MPD_CTRL			0x620
 #define  MPD_EN				(1 << 0)
 #define  MSEQ_LEN_SHIFT			16
@@ -258,6 +265,34 @@ struct bcm_rsb {
 #define UMAC_MDF_CTRL			0x650
 #define UMAC_MDF_ADDR			0x654
 
+/* Only valid on SYSTEMPORT Lite */
+#define SYS_PORT_GIB_OFFSET		0x1000
+
+#define GIB_CONTROL			0x00
+#define  GIB_TX_EN			(1 << 0)
+#define  GIB_RX_EN			(1 << 1)
+#define  GIB_TX_FLUSH			(1 << 2)
+#define  GIB_RX_FLUSH			(1 << 3)
+#define  GIB_GTX_CLK_SEL_SHIFT		4
+#define  GIB_GTX_CLK_EXT_CLK		(0 << GIB_GTX_CLK_SEL_SHIFT)
+#define  GIB_GTX_CLK_125MHZ		(1 << GIB_GTX_CLK_SEL_SHIFT)
+#define  GIB_GTX_CLK_250MHZ		(2 << GIB_GTX_CLK_SEL_SHIFT)
+#define  GIB_FCS_STRIP			(1 << 6)
+#define  GIB_LCL_LOOP_EN		(1 << 7)
+#define  GIB_LCL_LOOP_TXEN		(1 << 8)
+#define  GIB_RMT_LOOP_EN		(1 << 9)
+#define  GIB_RMT_LOOP_RXEN		(1 << 10)
+#define  GIB_RX_PAUSE_EN		(1 << 11)
+#define  GIB_PREAMBLE_LEN_SHIFT		12
+#define  GIB_PREAMBLE_LEN_MASK		0xf
+#define  GIB_IPG_LEN_SHIFT		16
+#define  GIB_IPG_LEN_MASK		0x3f
+#define  GIB_PAD_EXTENSION_SHIFT	22
+#define  GIB_PAD_EXTENSION_MASK		0x3f
+
+#define GIB_MAC1			0x08
+#define GIB_MAC0			0x0c
+
 /* Receive DMA offset and defines */
 #define SYS_PORT_RDMA_OFFSET		0x2000
 
@@ -409,16 +444,19 @@ struct bcm_rsb {
 					RING_PCP_DEI_VID)
 
 #define TDMA_CONTROL			0x600
-#define  TDMA_EN			(1 << 0)
-#define  TSB_EN				(1 << 1)
-#define  TSB_SWAP			(1 << 2)
-#define  ACB_ALGO			(1 << 3)
+#define  TDMA_EN			0
+#define  TSB_EN				1
+/* Uses 2 bits on SYSTEMPORT Lite and shifts everything by 1 bit, we
+ * keep the SYSTEMPORT layout here and adjust with tdma_control_bit()
+ */
+#define  TSB_SWAP			2
+#define  ACB_ALGO			3
 #define  BUF_DATA_OFFSET_SHIFT		4
 #define  BUF_DATA_OFFSET_MASK		0x3ff
-#define  VLAN_EN			(1 << 14)
-#define  SW_BRCM_TAG			(1 << 15)
-#define  WNC_KPT_SIZE_UPDATE		(1 << 16)
-#define  SYNC_PKT_SIZE			(1 << 17)
+#define  VLAN_EN			14
+#define  SW_BRCM_TAG			15
+#define  WNC_KPT_SIZE_UPDATE		16
+#define  SYNC_PKT_SIZE			17
 #define  ACH_TXDONE_DELAY_SHIFT		18
 #define  ACH_TXDONE_DELAY_MASK		0xff
 
@@ -475,12 +513,12 @@ struct dma_desc {
 };
 
 /* Number of Receive hardware descriptor words */
-#define NUM_HW_RX_DESC_WORDS		1024
-/* Real number of usable descriptors */
-#define NUM_RX_DESC			(NUM_HW_RX_DESC_WORDS / WORDS_PER_DESC)
+#define SP_NUM_HW_RX_DESC_WORDS		1024
+#define SP_LT_NUM_HW_RX_DESC_WORDS	256
 
-/* Internal linked-list RAM has up to 1536 entries */
-#define NUM_TX_DESC			1536
+/* Internal linked-list RAM size */
+#define SP_NUM_TX_DESC			1536
+#define SP_LT_NUM_TX_DESC		256
 
 #define WORDS_PER_DESC			(sizeof(struct dma_desc) / sizeof(u32))
 
@@ -627,6 +665,16 @@ struct bcm_sysport_cb {
 	DEFINE_DMA_UNMAP_LEN(dma_len);
 };
 
+enum bcm_sysport_type {
+	SYSTEMPORT = 0,
+	SYSTEMPORT_LITE,
+};
+
+struct bcm_sysport_hw_params {
+	bool		is_lite;
+	unsigned int	num_rx_desc_words;
+};
+
 /* Software view of the TX ring */
 struct bcm_sysport_tx_ring {
 	spinlock_t	lock;		/* Ring lock for tx reclaim/xmit */
@@ -651,6 +699,8 @@ struct bcm_sysport_priv {
 	u32			irq0_mask;
 	u32			irq1_stat;
 	u32			irq1_mask;
+	bool			is_lite;
+	unsigned int		num_rx_desc_words;
 	struct napi_struct	napi ____cacheline_aligned;
 	struct net_device	*netdev;
 	struct platform_device	*pdev;
@@ -659,7 +709,7 @@ struct bcm_sysport_priv {
 	int			wol_irq;
 
 	/* Transmit rings */
-	struct bcm_sysport_tx_ring tx_rings[TDMA_NUM_RINGS];
+	struct bcm_sysport_tx_ring *tx_rings;
 
 	/* Receive queue */
 	void __iomem		*rx_bds;