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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/**************************************************************************/
2/* */
3/* IBM eServer i/[Series Virtual Ethernet Device Driver */
4/* Copyright (C) 2003 IBM Corp. */
5/* Dave Larson (larson1@us.ibm.com) */
6/* Santiago Leon (santil@us.ibm.com) */
7/* */
8/* This program is free software; you can redistribute it and/or modify */
9/* it under the terms of the GNU General Public License as published by */
10/* the Free Software Foundation; either version 2 of the License, or */
11/* (at your option) any later version. */
12/* */
13/* This program is distributed in the hope that it will be useful, */
14/* but WITHOUT ANY WARRANTY; without even the implied warranty of */
15/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */
16/* GNU General Public License for more details. */
17/* */
18/* You should have received a copy of the GNU General Public License */
19/* along with this program; if not, write to the Free Software */
20/* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 */
21/* USA */
22/* */
23/**************************************************************************/
24
25#ifndef _IBMVETH_H
26#define _IBMVETH_H
27
Linus Torvalds1da177e2005-04-16 15:20:36 -070028/* constants for H_MULTICAST_CTRL */
29#define IbmVethMcastReceptionModifyBit 0x80000UL
30#define IbmVethMcastReceptionEnableBit 0x20000UL
31#define IbmVethMcastFilterModifyBit 0x40000UL
32#define IbmVethMcastFilterEnableBit 0x10000UL
33
34#define IbmVethMcastEnableRecv (IbmVethMcastReceptionModifyBit | IbmVethMcastReceptionEnableBit)
35#define IbmVethMcastDisableRecv (IbmVethMcastReceptionModifyBit)
36#define IbmVethMcastEnableFiltering (IbmVethMcastFilterModifyBit | IbmVethMcastFilterEnableBit)
37#define IbmVethMcastDisableFiltering (IbmVethMcastFilterModifyBit)
38#define IbmVethMcastAddFilter 0x1UL
39#define IbmVethMcastRemoveFilter 0x2UL
40#define IbmVethMcastClearFilterTable 0x3UL
41
Brian King79ef4a42007-08-17 09:16:56 -050042#define IBMVETH_ILLAN_PADDED_PKT_CSUM 0x0000000000002000ULL
43#define IBMVETH_ILLAN_TRUNK_PRI_MASK 0x0000000000000F00ULL
44#define IBMVETH_ILLAN_IPV6_TCP_CSUM 0x0000000000000004ULL
45#define IBMVETH_ILLAN_IPV4_TCP_CSUM 0x0000000000000002ULL
46#define IBMVETH_ILLAN_ACTIVE_TRUNK 0x0000000000000001ULL
47
Linus Torvalds1da177e2005-04-16 15:20:36 -070048/* hcall macros */
49#define h_register_logical_lan(ua, buflst, rxq, fltlst, mac) \
50 plpar_hcall_norets(H_REGISTER_LOGICAL_LAN, ua, buflst, rxq, fltlst, mac)
51
52#define h_free_logical_lan(ua) \
53 plpar_hcall_norets(H_FREE_LOGICAL_LAN, ua)
54
55#define h_add_logical_lan_buffer(ua, buf) \
56 plpar_hcall_norets(H_ADD_LOGICAL_LAN_BUFFER, ua, buf)
57
Anton Blanchardb9377ff2006-07-19 08:01:28 +100058static inline long h_send_logical_lan(unsigned long unit_address,
59 unsigned long desc1, unsigned long desc2, unsigned long desc3,
60 unsigned long desc4, unsigned long desc5, unsigned long desc6,
61 unsigned long corellator_in, unsigned long *corellator_out)
62{
63 long rc;
64 unsigned long retbuf[PLPAR_HCALL9_BUFSIZE];
65
66 rc = plpar_hcall9(H_SEND_LOGICAL_LAN, retbuf, unit_address, desc1,
67 desc2, desc3, desc4, desc5, desc6, corellator_in);
68
69 *corellator_out = retbuf[0];
70
71 return rc;
72}
Linus Torvalds1da177e2005-04-16 15:20:36 -070073
Brian Kingf4ff2872007-09-15 13:36:07 -070074static inline long h_illan_attributes(unsigned long unit_address,
75 unsigned long reset_mask, unsigned long set_mask,
76 unsigned long *ret_attributes)
77{
78 long rc;
79 unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
80
81 rc = plpar_hcall(H_ILLAN_ATTRIBUTES, retbuf, unit_address,
82 reset_mask, set_mask);
83
84 *ret_attributes = retbuf[0];
85
86 return rc;
87}
88
Linus Torvalds1da177e2005-04-16 15:20:36 -070089#define h_multicast_ctrl(ua, cmd, mac) \
90 plpar_hcall_norets(H_MULTICAST_CTRL, ua, cmd, mac)
91
92#define h_change_logical_lan_mac(ua, mac) \
93 plpar_hcall_norets(H_CHANGE_LOGICAL_LAN_MAC, ua, mac)
94
Santiago Leonb6d35182005-10-26 10:47:01 -060095#define IbmVethNumBufferPools 5
Robert Jennings1096d632008-07-24 04:34:52 +100096#define IBMVETH_IO_ENTITLEMENT_DEFAULT 4243456 /* MTU of 1500 needs 4.2Mb */
Santiago Leonb6d35182005-10-26 10:47:01 -060097#define IBMVETH_BUFF_OH 22 /* Overhead: 14 ethernet header + 8 opaque handle */
Santiago Leon860f2422006-04-25 11:19:59 -050098#define IBMVETH_MAX_MTU 68
99#define IBMVETH_MAX_POOL_COUNT 4096
Robert Jennings1096d632008-07-24 04:34:52 +1000100#define IBMVETH_BUFF_LIST_SIZE 4096
101#define IBMVETH_FILT_LIST_SIZE 4096
Santiago Leon860f2422006-04-25 11:19:59 -0500102#define IBMVETH_MAX_BUF_SIZE (1024 * 128)
Santiago Leonb6d35182005-10-26 10:47:01 -0600103
Santiago Leonb6d35182005-10-26 10:47:01 -0600104static int pool_size[] = { 512, 1024 * 2, 1024 * 16, 1024 * 32, 1024 * 64 };
105static int pool_count[] = { 256, 768, 256, 256, 256 };
Santiago Leon860f2422006-04-25 11:19:59 -0500106static int pool_active[] = { 1, 1, 0, 0, 0};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700107
108#define IBM_VETH_INVALID_MAP ((u16)0xffff)
109
110struct ibmveth_buff_pool {
111 u32 size;
112 u32 index;
113 u32 buff_size;
114 u32 threshold;
115 atomic_t available;
116 u32 consumer_index;
117 u32 producer_index;
118 u16 *free_map;
119 dma_addr_t *dma_addr;
120 struct sk_buff **skbuff;
Santiago Leonb6d35182005-10-26 10:47:01 -0600121 int active;
Santiago Leon860f2422006-04-25 11:19:59 -0500122 struct kobject kobj;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700123};
124
125struct ibmveth_rx_q {
126 u64 index;
127 u64 num_slots;
128 u64 toggle;
129 dma_addr_t queue_dma;
130 u32 queue_len;
131 struct ibmveth_rx_q_entry *queue_addr;
132};
133
134struct ibmveth_adapter {
135 struct vio_dev *vdev;
136 struct net_device *netdev;
Stephen Hemmingerbea33482007-10-03 16:41:36 -0700137 struct napi_struct napi;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700138 struct net_device_stats stats;
139 unsigned int mcastFilterSize;
140 unsigned long mac_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700141 void * buffer_list_addr;
142 void * filter_list_addr;
143 dma_addr_t buffer_list_dma;
144 dma_addr_t filter_list_dma;
145 struct ibmveth_buff_pool rx_buff_pool[IbmVethNumBufferPools];
146 struct ibmveth_rx_q rx_queue;
Santiago Leon860f2422006-04-25 11:19:59 -0500147 int pool_config;
Brian King5fc7e012007-08-17 09:16:31 -0500148 int rx_csum;
Robert Jennings1096d632008-07-24 04:34:52 +1000149 void *bounce_buffer;
150 dma_addr_t bounce_buffer_dma;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700151
152 /* adapter specific stats */
153 u64 replenish_task_cycles;
154 u64 replenish_no_mem;
155 u64 replenish_add_buff_failure;
156 u64 replenish_add_buff_success;
157 u64 rx_invalid_buffer;
158 u64 rx_no_buffer;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700159 u64 tx_map_failed;
160 u64 tx_send_failed;
Santiago Leon60296d92005-10-26 10:47:16 -0600161 spinlock_t stats_lock;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700162};
163
Jeff Garzikd7fbeba2006-05-24 01:31:14 -0400164struct ibmveth_buf_desc_fields {
Brian King79ef4a42007-08-17 09:16:56 -0500165 u32 flags_len;
166#define IBMVETH_BUF_VALID 0x80000000
167#define IBMVETH_BUF_TOGGLE 0x40000000
168#define IBMVETH_BUF_NO_CSUM 0x02000000
169#define IBMVETH_BUF_CSUM_GOOD 0x01000000
170#define IBMVETH_BUF_LEN_MASK 0x00FFFFFF
171 u32 address;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700172};
173
174union ibmveth_buf_desc {
Jeff Garzikd7fbeba2006-05-24 01:31:14 -0400175 u64 desc;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700176 struct ibmveth_buf_desc_fields fields;
177};
178
179struct ibmveth_rx_q_entry {
Brian King79ef4a42007-08-17 09:16:56 -0500180 u32 flags_off;
181#define IBMVETH_RXQ_TOGGLE 0x80000000
182#define IBMVETH_RXQ_TOGGLE_SHIFT 31
183#define IBMVETH_RXQ_VALID 0x40000000
184#define IBMVETH_RXQ_NO_CSUM 0x02000000
185#define IBMVETH_RXQ_CSUM_GOOD 0x01000000
186#define IBMVETH_RXQ_OFF_MASK 0x0000FFFF
187
188 u32 length;
189 u64 correlator;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700190};
191
192#endif /* _IBMVETH_H */