214 lines
6.3 KiB
C
214 lines
6.3 KiB
C
/* 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)
|
|
|
|
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;
|
|
/* 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 */
|