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

Pull networking updates from David Miller:

 1) Add VF IPSEC offload support in ixgbe, from Shannon Nelson.

 2) Add zero-copy AF_XDP support to i40e, from Björn Töpel.

 3) All in-tree drivers are converted to {g,s}et_link_ksettings() so we
    can get rid of the {g,s}et_settings ethtool callbacks, from Michal
    Kubecek.

 4) Add software timestamping to veth driver, from Michael Walle.

 5) More work to make packet classifiers and actions lockless, from Vlad
    Buslov.

 6) Support sticky FDB entries in bridge, from Nikolay Aleksandrov.

 7) Add ipv6 version of IP_MULTICAST_ALL sockopt, from Andre Naujoks.

 8) Support batching of XDP buffers in vhost_net, from Jason Wang.

 9) Add flow dissector BPF hook, from Petar Penkov.

10) i40e vf --> generic iavf conversion, from Jesse Brandeburg.

11) Add NLA_REJECT netlink attribute policy type, to signal when users
    provide attributes in situations which don't make sense. From
    Johannes Berg.

12) Switch TCP and fair-queue scheduler over to earliest departure time
    model. From Eric Dumazet.

13) Improve guest receive performance by doing rx busy polling in tx
    path of vhost networking driver, from Tonghao Zhang.

14) Add per-cgroup local storage to bpf

15) Add reference tracking to BPF, from Joe Stringer. The verifier can
    now make sure that references taken to objects are properly released
    by the program.

16) Support in-place encryption in TLS, from Vakul Garg.

17) Add new taprio packet scheduler, from Vinicius Costa Gomes.

18) Lots of selftests additions, too numerous to mention one by one here
    but all of which are very much appreciated.

19) Support offloading of eBPF programs containing BPF to BPF calls in
    nfp driver, frm Quentin Monnet.

20) Move dpaa2_ptp driver out of staging, from Yangbo Lu.

21) Lots of u32 classifier cleanups and simplifications, from Al Viro.

22) Add new strict versions of netlink message parsers, and enable them
    for some situations. From David Ahern.

23) Evict neighbour entries on carrier down, also from David Ahern.

24) Support BPF sk_msg verdict programs with kTLS, from Daniel Borkmann
    and John Fastabend.

25) Add support for filtering route dumps, from David Ahern.

26) New igc Intel driver for 2.5G parts, from Sasha Neftin et al.

27) Allow vxlan enslavement to bridges in mlxsw driver, from Ido
    Schimmel.

28) Add queue and stack map types to eBPF, from Mauricio Vasquez B.

29) Add back byte-queue-limit support to r8169, with all the bug fixes
    in other areas of the driver it works now! From Florian Westphal and
    Heiner Kallweit.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (2147 commits)
  tcp: add tcp_reset_xmit_timer() helper
  qed: Fix static checker warning
  Revert "be2net: remove desc field from be_eq_obj"
  Revert "net: simplify sock_poll_wait"
  net: socionext: Reset tx queue in ndo_stop
  net: socionext: Add dummy PHY register read in phy_write()
  net: socionext: Stop PHY before resetting netsec
  net: stmmac: Set OWN bit for jumbo frames
  arm64: dts: stratix10: Support Ethernet Jumbo frame
  tls: Add maintainers
  net: ethernet: ti: cpsw: unsync mcast entries while switch promisc mode
  octeontx2-af: Support for NIXLF's UCAST/PROMISC/ALLMULTI modes
  octeontx2-af: Support for setting MAC address
  octeontx2-af: Support for changing RSS algorithm
  octeontx2-af: NIX Rx flowkey configuration for RSS
  octeontx2-af: Install ucast and bcast pkt forwarding rules
  octeontx2-af: Add LMAC channel info to NIXLF_ALLOC response
  octeontx2-af: NPC MCAM and LDATA extract minimal configuration
  octeontx2-af: Enable packet length and csum validation
  octeontx2-af: Support for VTAG strip and capture
  ...

1 files changed, 191 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath/ath10k/hw.c b/drivers/net/wireless/ath/ath10k/hw.c
index 677535b3d207..af8ae8117c62 100644
--- a/drivers/net/wireless/ath/ath10k/hw.c
+++ b/drivers/net/wireless/ath/ath10k/hw.c
@@ -16,6 +16,7 @@
 
 #include <linux/types.h>
 #include <linux/bitops.h>
+#include <linux/bitfield.h>
 #include "core.h"
 #include "hw.h"
 #include "hif.h"
@@ -918,6 +919,196 @@ static int ath10k_hw_qca6174_enable_pll_clock(struct ath10k *ar)
 	return 0;
 }
 
+/* Program CPU_ADDR_MSB to allow different memory
+ * region access.
+ */
+static void ath10k_hw_map_target_mem(struct ath10k *ar, u32 msb)
+{
+	u32 address = SOC_CORE_BASE_ADDRESS + FW_RAM_CONFIG_ADDRESS;
+
+	ath10k_hif_write32(ar, address, msb);
+}
+
+/* 1. Write to memory region of target, such as IRAM adn DRAM.
+ * 2. Target address( 0 ~ 00100000 & 0x00400000~0x00500000)
+ *    can be written directly. See ath10k_pci_targ_cpu_to_ce_addr() too.
+ * 3. In order to access the region other than the above,
+ *    we need to set the value of register CPU_ADDR_MSB.
+ * 4. Target memory access space is limited to 1M size. If the size is larger
+ *    than 1M, need to split it and program CPU_ADDR_MSB accordingly.
+ */
+static int ath10k_hw_diag_segment_msb_download(struct ath10k *ar,
+					       const void *buffer,
+					       u32 address,
+					       u32 length)
+{
+	u32 addr = address & REGION_ACCESS_SIZE_MASK;
+	int ret, remain_size, size;
+	const u8 *buf;
+
+	ath10k_hw_map_target_mem(ar, CPU_ADDR_MSB_REGION_VAL(address));
+
+	if (addr + length > REGION_ACCESS_SIZE_LIMIT) {
+		size = REGION_ACCESS_SIZE_LIMIT - addr;
+		remain_size = length - size;
+
+		ret = ath10k_hif_diag_write(ar, address, buffer, size);
+		if (ret) {
+			ath10k_warn(ar,
+				    "failed to download the first %d bytes segment to address:0x%x: %d\n",
+				    size, address, ret);
+			goto done;
+		}
+
+		/* Change msb to the next memory region*/
+		ath10k_hw_map_target_mem(ar,
+					 CPU_ADDR_MSB_REGION_VAL(address) + 1);
+		buf = buffer +  size;
+		ret = ath10k_hif_diag_write(ar,
+					    address & ~REGION_ACCESS_SIZE_MASK,
+					    buf, remain_size);
+		if (ret) {
+			ath10k_warn(ar,
+				    "failed to download the second %d bytes segment to address:0x%x: %d\n",
+				    remain_size,
+				    address & ~REGION_ACCESS_SIZE_MASK,
+				    ret);
+			goto done;
+		}
+	} else {
+		ret = ath10k_hif_diag_write(ar, address, buffer, length);
+		if (ret) {
+			ath10k_warn(ar,
+				    "failed to download the only %d bytes segment to address:0x%x: %d\n",
+				    length, address, ret);
+			goto done;
+		}
+	}
+
+done:
+	/* Change msb to DRAM */
+	ath10k_hw_map_target_mem(ar,
+				 CPU_ADDR_MSB_REGION_VAL(DRAM_BASE_ADDRESS));
+	return ret;
+}
+
+static int ath10k_hw_diag_segment_download(struct ath10k *ar,
+					   const void *buffer,
+					   u32 address,
+					   u32 length)
+{
+	if (address >= DRAM_BASE_ADDRESS + REGION_ACCESS_SIZE_LIMIT)
+		/* Needs to change MSB for memory write */
+		return ath10k_hw_diag_segment_msb_download(ar, buffer,
+							   address, length);
+	else
+		return ath10k_hif_diag_write(ar, address, buffer, length);
+}
+
+int ath10k_hw_diag_fast_download(struct ath10k *ar,
+				 u32 address,
+				 const void *buffer,
+				 u32 length)
+{
+	const u8 *buf = buffer;
+	bool sgmt_end = false;
+	u32 base_addr = 0;
+	u32 base_len = 0;
+	u32 left = 0;
+	struct bmi_segmented_file_header *hdr;
+	struct bmi_segmented_metadata *metadata;
+	int ret = 0;
+
+	if (length < sizeof(*hdr))
+		return -EINVAL;
+
+	/* check firmware header. If it has no correct magic number
+	 * or it's compressed, returns error.
+	 */
+	hdr = (struct bmi_segmented_file_header *)buf;
+	if (__le32_to_cpu(hdr->magic_num) != BMI_SGMTFILE_MAGIC_NUM) {
+		ath10k_dbg(ar, ATH10K_DBG_BOOT,
+			   "Not a supported firmware, magic_num:0x%x\n",
+			   hdr->magic_num);
+		return -EINVAL;
+	}
+
+	if (hdr->file_flags != 0) {
+		ath10k_dbg(ar, ATH10K_DBG_BOOT,
+			   "Not a supported firmware, file_flags:0x%x\n",
+			   hdr->file_flags);
+		return -EINVAL;
+	}
+
+	metadata = (struct bmi_segmented_metadata *)hdr->data;
+	left = length - sizeof(*hdr);
+
+	while (left > 0) {
+		if (left < sizeof(*metadata)) {
+			ath10k_warn(ar, "firmware segment is truncated: %d\n",
+				    left);
+			ret = -EINVAL;
+			break;
+		}
+		base_addr = __le32_to_cpu(metadata->addr);
+		base_len = __le32_to_cpu(metadata->length);
+		buf = metadata->data;
+		left -= sizeof(*metadata);
+
+		switch (base_len) {
+		case BMI_SGMTFILE_BEGINADDR:
+			/* base_addr is the start address to run */
+			ret = ath10k_bmi_set_start(ar, base_addr);
+			base_len = 0;
+			break;
+		case BMI_SGMTFILE_DONE:
+			/* no more segment */
+			base_len = 0;
+			sgmt_end = true;
+			ret = 0;
+			break;
+		case BMI_SGMTFILE_BDDATA:
+		case BMI_SGMTFILE_EXEC:
+			ath10k_warn(ar,
+				    "firmware has unsupported segment:%d\n",
+				    base_len);
+			ret = -EINVAL;
+			break;
+		default:
+			if (base_len > left) {
+				/* sanity check */
+				ath10k_warn(ar,
+					    "firmware has invalid segment length, %d > %d\n",
+					    base_len, left);
+				ret = -EINVAL;
+				break;
+			}
+
+			ret = ath10k_hw_diag_segment_download(ar,
+							      buf,
+							      base_addr,
+							      base_len);
+
+			if (ret)
+				ath10k_warn(ar,
+					    "failed to download firmware via diag interface:%d\n",
+					    ret);
+			break;
+		}
+
+		if (ret || sgmt_end)
+			break;
+
+		metadata = (struct bmi_segmented_metadata *)(buf + base_len);
+		left -= base_len;
+	}
+
+	if (ret == 0)
+		ath10k_dbg(ar, ATH10K_DBG_BOOT,
+			   "boot firmware fast diag download successfully.\n");
+	return ret;
+}
+
 const struct ath10k_hw_ops qca988x_ops = {
 	.set_coverage_class = ath10k_hw_qca988x_set_coverage_class,
 };