On 07/23/2015 08:43 AM, Jiri Pirko wrote:
From: Jiri Pirko <j...@mellanox.com>
Benefit from the previously introduced Mellanox Switch infrastructure and
add driver for SwitchX-2 ASIC. Note that this driver is very simple now.
It implements bare minimum for getting device to work on slow-path.
Fast-path offload functionality is going to be added soon.
Signed-off-by: Jiri Pirko <j...@mellanox.com>
Signed-off-by: Ido Schimmel <ido...@mellanox.com>
Signed-off-by: Elad Raz <el...@mellanox.com>
---
drivers/net/ethernet/mellanox/mlxsw/Kconfig | 11 +
drivers/net/ethernet/mellanox/mlxsw/Makefile | 2 +
drivers/net/ethernet/mellanox/mlxsw/core.h | 2 +
drivers/net/ethernet/mellanox/mlxsw/pci.c | 3 +
drivers/net/ethernet/mellanox/mlxsw/pci.h | 1 +
drivers/net/ethernet/mellanox/mlxsw/port.h | 4 +
drivers/net/ethernet/mellanox/mlxsw/switchx2.c | 1541 ++++++++++++++++++++++++
drivers/net/ethernet/mellanox/mlxsw/txheader.h | 80 ++
8 files changed, 1644 insertions(+)
create mode 100644 drivers/net/ethernet/mellanox/mlxsw/switchx2.c
create mode 100644 drivers/net/ethernet/mellanox/mlxsw/txheader.h
<snip>
diff --git a/drivers/net/ethernet/mellanox/mlxsw/switchx2.c
b/drivers/net/ethernet/mellanox/mlxsw/switchx2.c
new file mode 100644
index 0000000..15dc53b
--- /dev/null
+++ b/drivers/net/ethernet/mellanox/mlxsw/switchx2.c
@@ -0,0 +1,1541 @@
+/*
+ * drivers/net/ethernet/mellanox/mlxsw/switchx2.c
+ * Copyright (c) 2015 Mellanox Technologies. All rights reserved.
+ * Copyright (c) 2015 Jiri Pirko <j...@mellanox.com>
+ * Copyright (c) 2015 Ido Schimmel <ido...@mellanox.com>
+ * Copyright (c) 2015 Elad Raz <el...@mellanox.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the names of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/slab.h>
+#include <linux/device.h>
+#include <linux/skbuff.h>
+#include <linux/if_vlan.h>
+#include <net/switchdev.h>
+#include <generated/utsrelease.h>
+
+#include "core.h"
+#include "reg.h"
+#include "port.h"
+#include "trap.h"
+#include "txheader.h"
+
+static const char mlxsw_sx_driver_name[] = "mlxsw_switchx2";
+static const char mlxsw_sx_driver_version[] = "1.0";
+
+struct mlxsw_sx_port;
+
+#define MLXSW_SW_HW_ID_LEN 6
+
+struct mlxsw_sx {
+ struct mlxsw_sx_port **ports;
+ struct mlxsw_core *core;
+ const struct mlxsw_bus_info *bus_info;
+ u8 hw_id[MLXSW_SW_HW_ID_LEN];
+};
+
+struct mlxsw_sx_port_pcpu_stats {
+ u64 rx_packets;
+ u64 rx_bytes;
+ u64 tx_packets;
+ u64 tx_bytes;
+ struct u64_stats_sync syncp;
+ u32 tx_dropped;
+};
+
It seems like this is the second time I have seen someone have to invent
a new pcpu stats to add tx_dropped. Maybe you should look at adding
tx_dropped to pcpu_sw_netstats and just use that.
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