Merge branch 'octeon_ep_vf'

Shinas Rasheed says:

====================
add octeon_ep_vf driver

This driver implements networking functionality of Marvell's Octeon
PCI Endpoint NIC VF.

This driver support following devices:
 * Network controller: Cavium, Inc. Device b203
 * Network controller: Cavium, Inc. Device b403
 * Network controller: Cavium, Inc. Device b103
 * Network controller: Cavium, Inc. Device b903
 * Network controller: Cavium, Inc. Device ba03
 * Network controller: Cavium, Inc. Device bc03
 * Network controller: Cavium, Inc. Device bd03

Changes:
V7:
  - Separated octep_vf_get_if_stats from octep_vf_main.h to later patch
    in [1/8]
  - Moved introducing ndo_ops from [3/8] to [5/8]

V6: https://lore.kernel.org/all/[email protected]/
  - Removed reuse of netif_tx_stop_all_queues, called implicitly in
    netif_tx_disable, when stopping netdev
  - Corrected error jump labels to have proper action-specific names in
    probe function
  - Removed singlethreaded workqueue implementation, since only tx
    timeout task is run. Run the same in the system workqueue
  - netdev_hold when tx_timeout happens to protect against free_netdev
    if race occurs between rmmod and a tx timeout. netdev_put the
    reference when timeout task ends to progress freeing netdev

V5: https://lore.kernel.org/all/[email protected]/
  - Changed unchecked return types to void and removed unnecessary
    initializations in [2/8] patch.

V4: https://lore.kernel.org/all/[email protected]/
  - Moved some stats from ethtool and added more to ndo_get_stats64
  - Replaced code in IQ full check function to use helper from
    net/netdev_queues.h
  - Refactored code so that NETDEV_TX_BUSY is avoided

V3: https://lore.kernel.org/all/[email protected]/
  - Removed UINT64_MAX, which is unused
  - Replaced masks and ULL declarations with GENMASK_ULL(), ULL() and
    other linux/bits.h macros, corrected declarations to conform to xmas tree format in patch [2/8]
  - Moved vfree and vzalloc null pointer casting corrections to patch
    [3/8], and corrected return values to follow standard kernel error codes in same
   - Set static budget of 64 for tx completion processing in NAPI
  - Replaces napi_complete and build_skb APIs to napi_complete_done and
    napi_build_skb APIs respectively
  - Replaced code with helper from net/netdev_queues.h to wake queues in TX completion
    processing
  - Removed duplicate reporting of TX/RX packets/bytes, which is already
    done during ndo_get_stats64

V2: https://lore.kernel.org/all/[email protected]/
  - Removed linux/version.h header file from inclusion in
    octep_vf_main.c
  - Corrected Makefile entry to include building octep_vf_mbox.c in
    [6/8] patch.
  - Removed redundant vzalloc pointer cast and vfree pointer check in
    [6/8] patch.

V1: https://lore.kernel.org/all/[email protected]/
====================

Signed-off-by: David S. Miller <[email protected]>

Documentation/networking/device_drivers/ethernet/index.rst

@@ -42,6 +42,7 @@ Contents:
    intel/ice
    marvell/octeontx2
    marvell/octeon_ep
+   marvell/octeon_ep_vf
    mellanox/mlx5/index
    microsoft/netvsc
    neterion/s2io

Documentation/networking/device_drivers/ethernet/marvell/octeon_ep_vf.rst

@@ -0,0 +1,24 @@
+.. SPDX-License-Identifier: GPL-2.0+
+
+=======================================================================
+Linux kernel networking driver for Marvell's Octeon PCI Endpoint NIC VF
+=======================================================================
+
+Network driver for Marvell's Octeon PCI EndPoint NIC VF.
+Copyright (c) 2020 Marvell International Ltd.
+
+Overview
+========
+This driver implements networking functionality of Marvell's Octeon PCI
+EndPoint NIC VF.
+
+Supported Devices
+=================
+Currently, this driver support following devices:
+ * Network controller: Cavium, Inc. Device b203
+ * Network controller: Cavium, Inc. Device b403
+ * Network controller: Cavium, Inc. Device b103
+ * Network controller: Cavium, Inc. Device b903
+ * Network controller: Cavium, Inc. Device ba03
+ * Network controller: Cavium, Inc. Device bc03
+ * Network controller: Cavium, Inc. Device bd03

MAINTAINERS

@@ -13059,6 +13059,15 @@ L:	[email protected]
 S:	Supported
 F:	drivers/net/ethernet/marvell/octeon_ep
 
+MARVELL OCTEON ENDPOINT VF DRIVER
+M:	Veerasenareddy Burru <[email protected]>
+M:	Sathesh Edara <[email protected]>
+M:	Shinas Rasheed <[email protected]>
+M:	Satananda Burla <[email protected]>
+L:	[email protected]
+S:	Supported
+F:	drivers/net/ethernet/marvell/octeon_ep_vf
+
 MARVELL OCTEONTX2 PHYSICAL FUNCTION DRIVER
 M:	Sunil Goutham <[email protected]>
 M:	Geetha sowjanya <[email protected]>

drivers/net/ethernet/marvell/Kconfig

@@ -180,6 +180,7 @@ config SKY2_DEBUG
 
 source "drivers/net/ethernet/marvell/octeontx2/Kconfig"
 source "drivers/net/ethernet/marvell/octeon_ep/Kconfig"
+source "drivers/net/ethernet/marvell/octeon_ep_vf/Kconfig"
 source "drivers/net/ethernet/marvell/prestera/Kconfig"
 
 endif # NET_VENDOR_MARVELL

drivers/net/ethernet/marvell/Makefile

@@ -12,5 +12,6 @@ obj-$(CONFIG_PXA168_ETH) += pxa168_eth.o
 obj-$(CONFIG_SKGE) += skge.o
 obj-$(CONFIG_SKY2) += sky2.o
 obj-y		+= octeon_ep/
+obj-y		+= octeon_ep_vf/
 obj-y		+= octeontx2/
 obj-y		+= prestera/

drivers/net/ethernet/marvell/octeon_ep_vf/Kconfig

@@ -0,0 +1,19 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Marvell's Octeon PCI Endpoint NIC VF Driver Configuration
+#
+
+config OCTEON_EP_VF
+	tristate "Marvell Octeon PCI Endpoint NIC VF Driver"
+	depends on 64BIT
+	depends on PCI
+	help
+	  This driver supports networking functionality of Marvell's
+	  Octeon PCI Endpoint NIC VF.
+
+	  To know the list of devices supported by this driver, refer
+	  documentation in
+	  <file:Documentation/networking/device_drivers/ethernet/marvell/octeon_ep_vf.rst>.
+
+	  To compile this drivers as a module, choose M here. Name of the
+	  module is octeon_ep_vf.

drivers/net/ethernet/marvell/octeon_ep_vf/Makefile

@@ -0,0 +1,10 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Network driver for Marvell's Octeon PCI Endpoint NIC VF
+#
+
+obj-$(CONFIG_OCTEON_EP_VF) += octeon_ep_vf.o
+
+octeon_ep_vf-y := octep_vf_main.o octep_vf_cn9k.o octep_vf_cnxk.o \
+		  octep_vf_tx.o octep_vf_rx.o octep_vf_mbox.o \
+		  octep_vf_ethtool.o