blob: 43a794fab9ff9e2b0e9998ceaa887d1973562059 [file] [log] [blame]
Santiago Leon9d348af2010-09-03 18:29:53 +00001/*
2 * IBM Power Virtual Ethernet Device Driver
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
17 *
18 * Copyright (C) IBM Corporation, 2003, 2010
19 *
20 * Authors: Dave Larson <larson1@us.ibm.com>
21 * Santiago Leon <santil@linux.vnet.ibm.com>
22 * Brian King <brking@linux.vnet.ibm.com>
23 * Robert Jennings <rcj@linux.vnet.ibm.com>
24 * Anton Blanchard <anton@au.ibm.com>
25 */
Linus Torvalds1da177e2005-04-16 15:20:36 -070026
27#ifndef _IBMVETH_H
28#define _IBMVETH_H
29
Linus Torvalds1da177e2005-04-16 15:20:36 -070030/* constants for H_MULTICAST_CTRL */
31#define IbmVethMcastReceptionModifyBit 0x80000UL
32#define IbmVethMcastReceptionEnableBit 0x20000UL
33#define IbmVethMcastFilterModifyBit 0x40000UL
34#define IbmVethMcastFilterEnableBit 0x10000UL
35
36#define IbmVethMcastEnableRecv (IbmVethMcastReceptionModifyBit | IbmVethMcastReceptionEnableBit)
37#define IbmVethMcastDisableRecv (IbmVethMcastReceptionModifyBit)
38#define IbmVethMcastEnableFiltering (IbmVethMcastFilterModifyBit | IbmVethMcastFilterEnableBit)
39#define IbmVethMcastDisableFiltering (IbmVethMcastFilterModifyBit)
40#define IbmVethMcastAddFilter 0x1UL
41#define IbmVethMcastRemoveFilter 0x2UL
42#define IbmVethMcastClearFilterTable 0x3UL
43
Stephen Rothwellff5bfc32009-01-06 10:47:44 -080044#define IBMVETH_ILLAN_PADDED_PKT_CSUM 0x0000000000002000UL
45#define IBMVETH_ILLAN_TRUNK_PRI_MASK 0x0000000000000F00UL
46#define IBMVETH_ILLAN_IPV6_TCP_CSUM 0x0000000000000004UL
47#define IBMVETH_ILLAN_IPV4_TCP_CSUM 0x0000000000000002UL
48#define IBMVETH_ILLAN_ACTIVE_TRUNK 0x0000000000000001UL
Brian King79ef4a42007-08-17 09:16:56 -050049
Linus Torvalds1da177e2005-04-16 15:20:36 -070050/* hcall macros */
51#define h_register_logical_lan(ua, buflst, rxq, fltlst, mac) \
52 plpar_hcall_norets(H_REGISTER_LOGICAL_LAN, ua, buflst, rxq, fltlst, mac)
53
54#define h_free_logical_lan(ua) \
55 plpar_hcall_norets(H_FREE_LOGICAL_LAN, ua)
56
57#define h_add_logical_lan_buffer(ua, buf) \
58 plpar_hcall_norets(H_ADD_LOGICAL_LAN_BUFFER, ua, buf)
59
Anton Blanchardb9377ff2006-07-19 08:01:28 +100060static inline long h_send_logical_lan(unsigned long unit_address,
61 unsigned long desc1, unsigned long desc2, unsigned long desc3,
62 unsigned long desc4, unsigned long desc5, unsigned long desc6,
63 unsigned long corellator_in, unsigned long *corellator_out)
64{
65 long rc;
66 unsigned long retbuf[PLPAR_HCALL9_BUFSIZE];
67
68 rc = plpar_hcall9(H_SEND_LOGICAL_LAN, retbuf, unit_address, desc1,
69 desc2, desc3, desc4, desc5, desc6, corellator_in);
70
71 *corellator_out = retbuf[0];
72
73 return rc;
74}
Linus Torvalds1da177e2005-04-16 15:20:36 -070075
Brian Kingf4ff2872007-09-15 13:36:07 -070076static inline long h_illan_attributes(unsigned long unit_address,
77 unsigned long reset_mask, unsigned long set_mask,
78 unsigned long *ret_attributes)
79{
80 long rc;
81 unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
82
83 rc = plpar_hcall(H_ILLAN_ATTRIBUTES, retbuf, unit_address,
84 reset_mask, set_mask);
85
86 *ret_attributes = retbuf[0];
87
88 return rc;
89}
90
Linus Torvalds1da177e2005-04-16 15:20:36 -070091#define h_multicast_ctrl(ua, cmd, mac) \
92 plpar_hcall_norets(H_MULTICAST_CTRL, ua, cmd, mac)
93
94#define h_change_logical_lan_mac(ua, mac) \
95 plpar_hcall_norets(H_CHANGE_LOGICAL_LAN_MAC, ua, mac)
96
Santiago Leon517e80e2010-09-03 18:29:25 +000097#define IBMVETH_NUM_BUFF_POOLS 5
Robert Jennings1096d632008-07-24 04:34:52 +100098#define IBMVETH_IO_ENTITLEMENT_DEFAULT 4243456 /* MTU of 1500 needs 4.2Mb */
Santiago Leonb6d35182005-10-26 10:47:01 -060099#define IBMVETH_BUFF_OH 22 /* Overhead: 14 ethernet header + 8 opaque handle */
Santiago Leon517e80e2010-09-03 18:29:25 +0000100#define IBMVETH_MIN_MTU 68
Santiago Leon860f2422006-04-25 11:19:59 -0500101#define IBMVETH_MAX_POOL_COUNT 4096
Robert Jennings1096d632008-07-24 04:34:52 +1000102#define IBMVETH_BUFF_LIST_SIZE 4096
103#define IBMVETH_FILT_LIST_SIZE 4096
Santiago Leon860f2422006-04-25 11:19:59 -0500104#define IBMVETH_MAX_BUF_SIZE (1024 * 128)
Santiago Leonb6d35182005-10-26 10:47:01 -0600105
Santiago Leonb6d35182005-10-26 10:47:01 -0600106static int pool_size[] = { 512, 1024 * 2, 1024 * 16, 1024 * 32, 1024 * 64 };
Santiago Leonc033a6d2010-09-03 18:28:09 +0000107static int pool_count[] = { 256, 512, 256, 256, 256 };
Santiago Leon860f2422006-04-25 11:19:59 -0500108static int pool_active[] = { 1, 1, 0, 0, 0};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700109
110#define IBM_VETH_INVALID_MAP ((u16)0xffff)
111
112struct ibmveth_buff_pool {
113 u32 size;
114 u32 index;
115 u32 buff_size;
116 u32 threshold;
117 atomic_t available;
118 u32 consumer_index;
119 u32 producer_index;
120 u16 *free_map;
121 dma_addr_t *dma_addr;
122 struct sk_buff **skbuff;
Santiago Leonb6d35182005-10-26 10:47:01 -0600123 int active;
Santiago Leon860f2422006-04-25 11:19:59 -0500124 struct kobject kobj;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700125};
126
127struct ibmveth_rx_q {
128 u64 index;
129 u64 num_slots;
130 u64 toggle;
131 dma_addr_t queue_dma;
132 u32 queue_len;
133 struct ibmveth_rx_q_entry *queue_addr;
134};
135
136struct ibmveth_adapter {
137 struct vio_dev *vdev;
138 struct net_device *netdev;
Stephen Hemmingerbea33482007-10-03 16:41:36 -0700139 struct napi_struct napi;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700140 struct net_device_stats stats;
141 unsigned int mcastFilterSize;
142 unsigned long mac_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700143 void * buffer_list_addr;
144 void * filter_list_addr;
145 dma_addr_t buffer_list_dma;
146 dma_addr_t filter_list_dma;
Santiago Leon517e80e2010-09-03 18:29:25 +0000147 struct ibmveth_buff_pool rx_buff_pool[IBMVETH_NUM_BUFF_POOLS];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700148 struct ibmveth_rx_q rx_queue;
Santiago Leon860f2422006-04-25 11:19:59 -0500149 int pool_config;
Brian King5fc7e012007-08-17 09:16:31 -0500150 int rx_csum;
Robert Jennings1096d632008-07-24 04:34:52 +1000151 void *bounce_buffer;
152 dma_addr_t bounce_buffer_dma;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700153
Santiago Leonab78df72010-09-03 18:28:52 +0000154 u64 fw_ipv6_csum_support;
155 u64 fw_ipv4_csum_support;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700156 /* adapter specific stats */
157 u64 replenish_task_cycles;
158 u64 replenish_no_mem;
159 u64 replenish_add_buff_failure;
160 u64 replenish_add_buff_success;
161 u64 rx_invalid_buffer;
162 u64 rx_no_buffer;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700163 u64 tx_map_failed;
164 u64 tx_send_failed;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700165};
166
Jeff Garzikd7fbeba2006-05-24 01:31:14 -0400167struct ibmveth_buf_desc_fields {
Brian King79ef4a42007-08-17 09:16:56 -0500168 u32 flags_len;
169#define IBMVETH_BUF_VALID 0x80000000
170#define IBMVETH_BUF_TOGGLE 0x40000000
171#define IBMVETH_BUF_NO_CSUM 0x02000000
172#define IBMVETH_BUF_CSUM_GOOD 0x01000000
173#define IBMVETH_BUF_LEN_MASK 0x00FFFFFF
174 u32 address;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700175};
176
177union ibmveth_buf_desc {
Jeff Garzikd7fbeba2006-05-24 01:31:14 -0400178 u64 desc;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700179 struct ibmveth_buf_desc_fields fields;
180};
181
182struct ibmveth_rx_q_entry {
Brian King79ef4a42007-08-17 09:16:56 -0500183 u32 flags_off;
184#define IBMVETH_RXQ_TOGGLE 0x80000000
185#define IBMVETH_RXQ_TOGGLE_SHIFT 31
186#define IBMVETH_RXQ_VALID 0x40000000
187#define IBMVETH_RXQ_NO_CSUM 0x02000000
188#define IBMVETH_RXQ_CSUM_GOOD 0x01000000
189#define IBMVETH_RXQ_OFF_MASK 0x0000FFFF
190
191 u32 length;
192 u64 correlator;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700193};
194
195#endif /* _IBMVETH_H */