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-rw-r--r--drivers/net/ethernet/ibm/ibmveth.h216
1 files changed, 216 insertions, 0 deletions
diff --git a/drivers/net/ethernet/ibm/ibmveth.h b/drivers/net/ethernet/ibm/ibmveth.h
new file mode 100644
index 0000000000..8468e2c59d
--- /dev/null
+++ b/drivers/net/ethernet/ibm/ibmveth.h
@@ -0,0 +1,216 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * IBM Power Virtual Ethernet Device Driver
+ *
+ * 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)
+
+/* FW allows us to send 6 descriptors but we only use one so mark
+ * the other 5 as unused (0)
+ */
+static inline long h_send_logical_lan(unsigned long unit_address,
+ unsigned long desc, 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,
+ desc, 0, 0, 0, 0, 0, corellator_in, mss);
+ else
+ rc = plpar_hcall9(H_SEND_LOGICAL_LAN, retbuf, unit_address,
+ desc, 0, 0, 0, 0, 0, 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)
+#define IBMVETH_MAX_TX_BUF_SIZE (1024 * 64)
+#define IBMVETH_MAX_QUEUES 16U
+#define IBMVETH_DEFAULT_QUEUES 8U
+
+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;
+ void *tx_ltb_ptr[IBMVETH_MAX_QUEUES];
+ unsigned int tx_ltb_size;
+ dma_addr_t tx_ltb_dma[IBMVETH_MAX_QUEUES];
+ 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 rx_csum;
+ int large_send;
+ bool is_active_trunk;
+
+ 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;
+ /* Ethtool settings */
+ u8 duplex;
+ u32 speed;
+};
+
+/*
+ * 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 */