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

Pull networking updates from David Miller:

 1) Allow setting bluetooth L2CAP modes via socket option, from Luiz
    Augusto von Dentz.

 2) Add GSO partial support to igc, from Sasha Neftin.

 3) Several cleanups and improvements to r8169 from Heiner Kallweit.

 4) Add IF_OPER_TESTING link state and use it when ethtool triggers a
    device self-test. From Andrew Lunn.

 5) Start moving away from custom driver versions, use the globally
    defined kernel version instead, from Leon Romanovsky.

 6) Support GRO vis gro_cells in DSA layer, from Alexander Lobakin.

 7) Allow hard IRQ deferral during NAPI, from Eric Dumazet.

 8) Add sriov and vf support to hinic, from Luo bin.

 9) Support Media Redundancy Protocol (MRP) in the bridging code, from
    Horatiu Vultur.

10) Support netmap in the nft_nat code, from Pablo Neira Ayuso.

11) Allow UDPv6 encapsulation of ESP in the ipsec code, from Sabrina
    Dubroca. Also add ipv6 support for espintcp.

12) Lots of ReST conversions of the networking documentation, from Mauro
    Carvalho Chehab.

13) Support configuration of ethtool rxnfc flows in bcmgenet driver,
    from Doug Berger.

14) Allow to dump cgroup id and filter by it in inet_diag code, from
    Dmitry Yakunin.

15) Add infrastructure to export netlink attribute policies to
    userspace, from Johannes Berg.

16) Several optimizations to sch_fq scheduler, from Eric Dumazet.

17) Fallback to the default qdisc if qdisc init fails because otherwise
    a packet scheduler init failure will make a device inoperative. From
    Jesper Dangaard Brouer.

18) Several RISCV bpf jit optimizations, from Luke Nelson.

19) Correct the return type of the ->ndo_start_xmit() method in several
    drivers, it's netdev_tx_t but many drivers were using
    'int'. From Yunjian Wang.

20) Add an ethtool interface for PHY master/slave config, from Oleksij
    Rempel.

21) Add BPF iterators, from Yonghang Song.

22) Add cable test infrastructure, including ethool interfaces, from
    Andrew Lunn. Marvell PHY driver is the first to support this
    facility.

23) Remove zero-length arrays all over, from Gustavo A. R. Silva.

24) Calculate and maintain an explicit frame size in XDP, from Jesper
    Dangaard Brouer.

25) Add CAP_BPF, from Alexei Starovoitov.

26) Support terse dumps in the packet scheduler, from Vlad Buslov.

27) Support XDP_TX bulking in dpaa2 driver, from Ioana Ciornei.

28) Add devm_register_netdev(), from Bartosz Golaszewski.

29) Minimize qdisc resets, from Cong Wang.

30) Get rid of kernel_getsockopt and kernel_setsockopt in order to
    eliminate set_fs/get_fs calls. From Christoph Hellwig.

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2517 commits)
  selftests: net: ip_defrag: ignore EPERM
  net_failover: fixed rollback in net_failover_open()
  Revert "tipc: Fix potential tipc_aead refcnt leak in tipc_crypto_rcv"
  Revert "tipc: Fix potential tipc_node refcnt leak in tipc_rcv"
  vmxnet3: allow rx flow hash ops only when rss is enabled
  hinic: add set_channels ethtool_ops support
  selftests/bpf: Add a default $(CXX) value
  tools/bpf: Don't use $(COMPILE.c)
  bpf, selftests: Use bpf_probe_read_kernel
  s390/bpf: Use bcr 0,%0 as tail call nop filler
  s390/bpf: Maintain 8-byte stack alignment
  selftests/bpf: Fix verifier test
  selftests/bpf: Fix sample_cnt shared between two threads
  bpf, selftests: Adapt cls_redirect to call csum_level helper
  bpf: Add csum_level helper for fixing up csum levels
  bpf: Fix up bpf_skb_adjust_room helper's skb csum setting
  sfc: add missing annotation for efx_ef10_try_update_nic_stats_vf()
  crypto/chtls: IPv6 support for inline TLS
  Crypto/chcr: Fixes a coccinile check error
  Crypto/chcr: Fixes compilations warnings
  ...

1 files changed, 6 insertions, 136 deletions

diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/internal.h b/drivers/net/wireless/intel/iwlwifi/pcie/internal.h
index 595e6873d56e..55808ba10d27 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/internal.h
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/internal.h
@@ -189,6 +189,8 @@ struct iwl_rx_completion_desc {
  * @rb_stts_dma: bus address of receive buffer status
  * @lock:
  * @queue: actual rx queue. Not used for multi-rx queue.
+ * @next_rb_is_fragment: indicates that the previous RB that we handled set
+ *	the fragmented flag, so the next one is still another fragment
  *
  * NOTE:  rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
  */
@@ -214,7 +216,7 @@ struct iwl_rxq {
 	u32 queue_size;
 	struct list_head rx_free;
 	struct list_head rx_used;
-	bool need_update;
+	bool need_update, next_rb_is_fragment;
 	void *rb_stts;
 	dma_addr_t rb_stts_dma;
 	spinlock_t lock;
@@ -244,12 +246,6 @@ struct iwl_rb_allocator {
 	struct work_struct rx_alloc;
 };
 
-struct iwl_dma_ptr {
-	dma_addr_t dma;
-	void *addr;
-	size_t size;
-};
-
 /**
  * iwl_queue_inc_wrap - increment queue index, wrap back to beginning
  * @index -- current index
@@ -288,107 +284,6 @@ static inline int iwl_queue_dec_wrap(struct iwl_trans *trans, int index)
 		(trans->trans_cfg->base_params->max_tfd_queue_size - 1);
 }
 
-struct iwl_cmd_meta {
-	/* only for SYNC commands, iff the reply skb is wanted */
-	struct iwl_host_cmd *source;
-	u32 flags;
-	u32 tbs;
-};
-
-/*
- * The FH will write back to the first TB only, so we need to copy some data
- * into the buffer regardless of whether it should be mapped or not.
- * This indicates how big the first TB must be to include the scratch buffer
- * and the assigned PN.
- * Since PN location is 8 bytes at offset 12, it's 20 now.
- * If we make it bigger then allocations will be bigger and copy slower, so
- * that's probably not useful.
- */
-#define IWL_FIRST_TB_SIZE	20
-#define IWL_FIRST_TB_SIZE_ALIGN ALIGN(IWL_FIRST_TB_SIZE, 64)
-
-struct iwl_pcie_txq_entry {
-	void *cmd;
-	struct sk_buff *skb;
-	/* buffer to free after command completes */
-	const void *free_buf;
-	struct iwl_cmd_meta meta;
-};
-
-struct iwl_pcie_first_tb_buf {
-	u8 buf[IWL_FIRST_TB_SIZE_ALIGN];
-};
-
-/**
- * struct iwl_txq - Tx Queue for DMA
- * @q: generic Rx/Tx queue descriptor
- * @tfds: transmit frame descriptors (DMA memory)
- * @first_tb_bufs: start of command headers, including scratch buffers, for
- *	the writeback -- this is DMA memory and an array holding one buffer
- *	for each command on the queue
- * @first_tb_dma: DMA address for the first_tb_bufs start
- * @entries: transmit entries (driver state)
- * @lock: queue lock
- * @stuck_timer: timer that fires if queue gets stuck
- * @trans_pcie: pointer back to transport (for timer)
- * @need_update: indicates need to update read/write index
- * @ampdu: true if this queue is an ampdu queue for an specific RA/TID
- * @wd_timeout: queue watchdog timeout (jiffies) - per queue
- * @frozen: tx stuck queue timer is frozen
- * @frozen_expiry_remainder: remember how long until the timer fires
- * @bc_tbl: byte count table of the queue (relevant only for gen2 transport)
- * @write_ptr: 1-st empty entry (index) host_w
- * @read_ptr: last used entry (index) host_r
- * @dma_addr:  physical addr for BD's
- * @n_window: safe queue window
- * @id: queue id
- * @low_mark: low watermark, resume queue if free space more than this
- * @high_mark: high watermark, stop queue if free space less than this
- *
- * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
- * descriptors) and required locking structures.
- *
- * Note the difference between TFD_QUEUE_SIZE_MAX and n_window: the hardware
- * always assumes 256 descriptors, so TFD_QUEUE_SIZE_MAX is always 256 (unless
- * there might be HW changes in the future). For the normal TX
- * queues, n_window, which is the size of the software queue data
- * is also 256; however, for the command queue, n_window is only
- * 32 since we don't need so many commands pending. Since the HW
- * still uses 256 BDs for DMA though, TFD_QUEUE_SIZE_MAX stays 256.
- * This means that we end up with the following:
- *  HW entries: | 0 | ... | N * 32 | ... | N * 32 + 31 | ... | 255 |
- *  SW entries:           | 0      | ... | 31          |
- * where N is a number between 0 and 7. This means that the SW
- * data is a window overlayed over the HW queue.
- */
-struct iwl_txq {
-	void *tfds;
-	struct iwl_pcie_first_tb_buf *first_tb_bufs;
-	dma_addr_t first_tb_dma;
-	struct iwl_pcie_txq_entry *entries;
-	spinlock_t lock;
-	unsigned long frozen_expiry_remainder;
-	struct timer_list stuck_timer;
-	struct iwl_trans_pcie *trans_pcie;
-	bool need_update;
-	bool frozen;
-	bool ampdu;
-	int block;
-	unsigned long wd_timeout;
-	struct sk_buff_head overflow_q;
-	struct iwl_dma_ptr bc_tbl;
-
-	int write_ptr;
-	int read_ptr;
-	dma_addr_t dma_addr;
-	int n_window;
-	u32 id;
-	int low_mark;
-	int high_mark;
-
-	bool overflow_tx;
-};
-
 static inline dma_addr_t
 iwl_pcie_get_first_tb_dma(struct iwl_txq *txq, int idx)
 {
@@ -556,11 +451,9 @@ struct iwl_trans_pcie {
 	u32 scd_base_addr;
 	struct iwl_dma_ptr scd_bc_tbls;
 	struct iwl_dma_ptr kw;
+	struct dma_pool *bc_pool;
 
 	struct iwl_txq *txq_memory;
-	struct iwl_txq *txq[IWL_MAX_TVQM_QUEUES];
-	unsigned long queue_used[BITS_TO_LONGS(IWL_MAX_TVQM_QUEUES)];
-	unsigned long queue_stopped[BITS_TO_LONGS(IWL_MAX_TVQM_QUEUES)];
 
 	/* PCI bus related data */
 	struct pci_dev *pci_dev;
@@ -574,10 +467,7 @@ struct iwl_trans_pcie {
 
 	u8 page_offs, dev_cmd_offs;
 
-	u8 cmd_queue;
 	u8 def_rx_queue;
-	u8 cmd_fifo;
-	unsigned int cmd_q_wdg_timeout;
 	u8 n_no_reclaim_cmds;
 	u8 no_reclaim_cmds[MAX_NO_RECLAIM_CMDS];
 	u8 max_tbs;
@@ -792,22 +682,6 @@ static inline int iwl_pcie_get_num_sections(const struct fw_img *fw,
 	return i;
 }
 
-static inline int iwl_pcie_ctxt_info_alloc_dma(struct iwl_trans *trans,
-					       const struct fw_desc *sec,
-					       struct iwl_dram_data *dram)
-{
-	dram->block = dma_alloc_coherent(trans->dev, sec->len,
-					 &dram->physical,
-					 GFP_KERNEL);
-	if (!dram->block)
-		return -ENOMEM;
-
-	dram->size = sec->len;
-	memcpy(dram->block, sec->data, sec->len);
-
-	return 0;
-}
-
 static inline void iwl_pcie_ctxt_info_free_fw_img(struct iwl_trans *trans)
 {
 	struct iwl_self_init_dram *dram = &trans->init_dram;
@@ -996,9 +870,7 @@ void iwl_pcie_handle_rfkill_irq(struct iwl_trans *trans);
 static inline void iwl_wake_queue(struct iwl_trans *trans,
 				  struct iwl_txq *txq)
 {
-	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
-
-	if (test_and_clear_bit(txq->id, trans_pcie->queue_stopped)) {
+	if (test_and_clear_bit(txq->id, trans->txqs.queue_stopped)) {
 		IWL_DEBUG_TX_QUEUES(trans, "Wake hwq %d\n", txq->id);
 		iwl_op_mode_queue_not_full(trans->op_mode, txq->id);
 	}
@@ -1007,9 +879,7 @@ static inline void iwl_wake_queue(struct iwl_trans *trans,
 static inline void iwl_stop_queue(struct iwl_trans *trans,
 				  struct iwl_txq *txq)
 {
-	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
-
-	if (!test_and_set_bit(txq->id, trans_pcie->queue_stopped)) {
+	if (!test_and_set_bit(txq->id, trans->txqs.queue_stopped)) {
 		iwl_op_mode_queue_full(trans->op_mode, txq->id);
 		IWL_DEBUG_TX_QUEUES(trans, "Stop hwq %d\n", txq->id);
 	} else