Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 222 insertions, 0 deletions

diff --git a/drivers/net/ethernet/ibm/ibmveth.h b/drivers/net/ethernet/ibm/ibmveth.h
new file mode 100644
index 000000000..01c587fc0
--- /dev/null
+++ b/drivers/net/ethernet/ibm/ibmveth.h
@@ -0,0 +1,222 @@
+/*
+ * IBM Power Virtual Ethernet Device Driver
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+ * Copyright (C) IBM Corporation, 2003, 2010
+ *
+ * Authors: Dave Larson <larson1@us.ibm.com>
+ *	    Santiago Leon <santil@linux.vnet.ibm.com>
+ *	    Brian King <brking@linux.vnet.ibm.com>
+ *	    Robert Jennings <rcj@linux.vnet.ibm.com>
+ *	    Anton Blanchard <anton@au.ibm.com>
+ */
+
+#ifndef _IBMVETH_H
+#define _IBMVETH_H
+
+/* constants for H_MULTICAST_CTRL */
+#define IbmVethMcastReceptionModifyBit     0x80000UL
+#define IbmVethMcastReceptionEnableBit     0x20000UL
+#define IbmVethMcastFilterModifyBit        0x40000UL
+#define IbmVethMcastFilterEnableBit        0x10000UL
+
+#define IbmVethMcastEnableRecv       (IbmVethMcastReceptionModifyBit | IbmVethMcastReceptionEnableBit)
+#define IbmVethMcastDisableRecv      (IbmVethMcastReceptionModifyBit)
+#define IbmVethMcastEnableFiltering  (IbmVethMcastFilterModifyBit | IbmVethMcastFilterEnableBit)
+#define IbmVethMcastDisableFiltering (IbmVethMcastFilterModifyBit)
+#define IbmVethMcastAddFilter        0x1UL
+#define IbmVethMcastRemoveFilter     0x2UL
+#define IbmVethMcastClearFilterTable 0x3UL
+
+#define IBMVETH_ILLAN_LRG_SR_ENABLED	0x0000000000010000UL
+#define IBMVETH_ILLAN_LRG_SND_SUPPORT	0x0000000000008000UL
+#define IBMVETH_ILLAN_PADDED_PKT_CSUM	0x0000000000002000UL
+#define IBMVETH_ILLAN_TRUNK_PRI_MASK	0x0000000000000F00UL
+#define IBMVETH_ILLAN_IPV6_TCP_CSUM		0x0000000000000004UL
+#define IBMVETH_ILLAN_IPV4_TCP_CSUM		0x0000000000000002UL
+#define IBMVETH_ILLAN_ACTIVE_TRUNK		0x0000000000000001UL
+
+/* hcall macros */
+#define h_register_logical_lan(ua, buflst, rxq, fltlst, mac) \
+  plpar_hcall_norets(H_REGISTER_LOGICAL_LAN, ua, buflst, rxq, fltlst, mac)
+
+#define h_free_logical_lan(ua) \
+  plpar_hcall_norets(H_FREE_LOGICAL_LAN, ua)
+
+#define h_add_logical_lan_buffer(ua, buf) \
+  plpar_hcall_norets(H_ADD_LOGICAL_LAN_BUFFER, ua, buf)
+
+static inline long h_send_logical_lan(unsigned long unit_address,
+		unsigned long desc1, unsigned long desc2, unsigned long desc3,
+		unsigned long desc4, unsigned long desc5, unsigned long desc6,
+		unsigned long corellator_in, unsigned long *corellator_out,
+		unsigned long mss, unsigned long large_send_support)
+{
+	long rc;
+	unsigned long retbuf[PLPAR_HCALL9_BUFSIZE];
+
+	if (large_send_support)
+		rc = plpar_hcall9(H_SEND_LOGICAL_LAN, retbuf, unit_address,
+				  desc1, desc2, desc3, desc4, desc5, desc6,
+				  corellator_in, mss);
+	else
+		rc = plpar_hcall9(H_SEND_LOGICAL_LAN, retbuf, unit_address,
+				  desc1, desc2, desc3, desc4, desc5, desc6,
+				  corellator_in);
+
+	*corellator_out = retbuf[0];
+
+	return rc;
+}
+
+static inline long h_illan_attributes(unsigned long unit_address,
+				      unsigned long reset_mask, unsigned long set_mask,
+				      unsigned long *ret_attributes)
+{
+	long rc;
+	unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
+
+	rc = plpar_hcall(H_ILLAN_ATTRIBUTES, retbuf, unit_address,
+			 reset_mask, set_mask);
+
+	*ret_attributes = retbuf[0];
+
+	return rc;
+}
+
+#define h_multicast_ctrl(ua, cmd, mac) \
+  plpar_hcall_norets(H_MULTICAST_CTRL, ua, cmd, mac)
+
+#define h_change_logical_lan_mac(ua, mac) \
+  plpar_hcall_norets(H_CHANGE_LOGICAL_LAN_MAC, ua, mac)
+
+#define IBMVETH_NUM_BUFF_POOLS 5
+#define IBMVETH_IO_ENTITLEMENT_DEFAULT 4243456 /* MTU of 1500 needs 4.2Mb */
+#define IBMVETH_BUFF_OH 22 /* Overhead: 14 ethernet header + 8 opaque handle */
+#define IBMVETH_MIN_MTU 68
+#define IBMVETH_MAX_POOL_COUNT 4096
+#define IBMVETH_BUFF_LIST_SIZE 4096
+#define IBMVETH_FILT_LIST_SIZE 4096
+#define IBMVETH_MAX_BUF_SIZE (1024 * 128)
+
+static int pool_size[] = { 512, 1024 * 2, 1024 * 16, 1024 * 32, 1024 * 64 };
+static int pool_count[] = { 256, 512, 256, 256, 256 };
+static int pool_count_cmo[] = { 256, 512, 256, 256, 64 };
+static int pool_active[] = { 1, 1, 0, 0, 1};
+
+#define IBM_VETH_INVALID_MAP ((u16)0xffff)
+
+struct ibmveth_buff_pool {
+    u32 size;
+    u32 index;
+    u32 buff_size;
+    u32 threshold;
+    atomic_t available;
+    u32 consumer_index;
+    u32 producer_index;
+    u16 *free_map;
+    dma_addr_t *dma_addr;
+    struct sk_buff **skbuff;
+    int active;
+    struct kobject kobj;
+};
+
+struct ibmveth_rx_q {
+    u64        index;
+    u64        num_slots;
+    u64        toggle;
+    dma_addr_t queue_dma;
+    u32        queue_len;
+    struct ibmveth_rx_q_entry *queue_addr;
+};
+
+struct ibmveth_adapter {
+    struct vio_dev *vdev;
+    struct net_device *netdev;
+    struct napi_struct napi;
+    unsigned int mcastFilterSize;
+    void * buffer_list_addr;
+    void * filter_list_addr;
+    dma_addr_t buffer_list_dma;
+    dma_addr_t filter_list_dma;
+    struct ibmveth_buff_pool rx_buff_pool[IBMVETH_NUM_BUFF_POOLS];
+    struct ibmveth_rx_q rx_queue;
+    int pool_config;
+    int rx_csum;
+    int large_send;
+    bool is_active_trunk;
+    void *bounce_buffer;
+    dma_addr_t bounce_buffer_dma;
+
+    u64 fw_ipv6_csum_support;
+    u64 fw_ipv4_csum_support;
+    u64 fw_large_send_support;
+    /* adapter specific stats */
+    u64 replenish_task_cycles;
+    u64 replenish_no_mem;
+    u64 replenish_add_buff_failure;
+    u64 replenish_add_buff_success;
+    u64 rx_invalid_buffer;
+    u64 rx_no_buffer;
+    u64 tx_map_failed;
+    u64 tx_send_failed;
+    u64 tx_large_packets;
+    u64 rx_large_packets;
+};
+
+/*
+ * We pass struct ibmveth_buf_desc_fields to the hypervisor in registers,
+ * so we don't need to byteswap the two elements. However since we use
+ * a union (ibmveth_buf_desc) to convert from the struct to a u64 we
+ * do end up with endian specific ordering of the elements and that
+ * needs correcting.
+ */
+struct ibmveth_buf_desc_fields {
+#ifdef __BIG_ENDIAN
+	u32 flags_len;
+	u32 address;
+#else
+	u32 address;
+	u32 flags_len;
+#endif
+#define IBMVETH_BUF_VALID	0x80000000
+#define IBMVETH_BUF_TOGGLE	0x40000000
+#define IBMVETH_BUF_LRG_SND     0x04000000
+#define IBMVETH_BUF_NO_CSUM	0x02000000
+#define IBMVETH_BUF_CSUM_GOOD	0x01000000
+#define IBMVETH_BUF_LEN_MASK	0x00FFFFFF
+};
+
+union ibmveth_buf_desc {
+    u64 desc;
+    struct ibmveth_buf_desc_fields fields;
+};
+
+struct ibmveth_rx_q_entry {
+	__be32 flags_off;
+#define IBMVETH_RXQ_TOGGLE		0x80000000
+#define IBMVETH_RXQ_TOGGLE_SHIFT	31
+#define IBMVETH_RXQ_VALID		0x40000000
+#define IBMVETH_RXQ_LRG_PKT		0x04000000
+#define IBMVETH_RXQ_NO_CSUM		0x02000000
+#define IBMVETH_RXQ_CSUM_GOOD		0x01000000
+#define IBMVETH_RXQ_OFF_MASK		0x0000FFFF
+
+	__be32 length;
+	/* correlator is only used by the OS, no need to byte swap */
+	u64 correlator;
+};
+
+#endif /* _IBMVETH_H */