[net-next-2.6.git] / drivers / net / ibmveth.h

/*
 * 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, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 *
 * 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_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)
{
	long rc;
	unsigned long retbuf[PLPAR_HCALL9_BUFSIZE];

	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_active[] = { 1, 1, 0, 0, 0};

#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;
    struct net_device_stats stats;
    unsigned int mcastFilterSize;
    unsigned long mac_addr;
    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;
    void *bounce_buffer;
    dma_addr_t bounce_buffer_dma;

    u64 fw_ipv6_csum_support;
    u64 fw_ipv4_csum_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;
};

struct ibmveth_buf_desc_fields {
	u32 flags_len;
#define IBMVETH_BUF_VALID	0x80000000
#define IBMVETH_BUF_TOGGLE	0x40000000
#define IBMVETH_BUF_NO_CSUM	0x02000000
#define IBMVETH_BUF_CSUM_GOOD	0x01000000
#define IBMVETH_BUF_LEN_MASK	0x00FFFFFF
	u32 address;
};

union ibmveth_buf_desc {
    u64 desc;
    struct ibmveth_buf_desc_fields fields;
};

struct ibmveth_rx_q_entry {
	u32 flags_off;
#define IBMVETH_RXQ_TOGGLE		0x80000000
#define IBMVETH_RXQ_TOGGLE_SHIFT	31
#define IBMVETH_RXQ_VALID		0x40000000
#define IBMVETH_RXQ_NO_CSUM		0x02000000
#define IBMVETH_RXQ_CSUM_GOOD		0x01000000
#define IBMVETH_RXQ_OFF_MASK		0x0000FFFF

	u32 length;
	u64 correlator;
};

#endif /* _IBMVETH_H */
Commit	Line	Data
9d348af4 SL	1	/*
	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	*/
1da177e4 LT	26
	27	#ifndef _IBMVETH_H
	28	#define _IBMVETH_H
	29
1da177e4 LT	30	/* 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
ff5bfc35 SR	44	#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
79ef4a4d	49
1da177e4 LT	50	/* 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
b9377ffc AB	60	static 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	}
1da177e4	75
f4ff2872 BK	76	static 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
1da177e4 LT	91	#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
517e80e6	97	#define IBMVETH_NUM_BUFF_POOLS 5
1096d63d	98	#define IBMVETH_IO_ENTITLEMENT_DEFAULT 4243456 /* MTU of 1500 needs 4.2Mb */
b6d35182	99	#define IBMVETH_BUFF_OH 22 /* Overhead: 14 ethernet header + 8 opaque handle */
517e80e6	100	#define IBMVETH_MIN_MTU 68
860f242e	101	#define IBMVETH_MAX_POOL_COUNT 4096
1096d63d RJ	102	#define IBMVETH_BUFF_LIST_SIZE 4096
1096d63d RJ	103	#define IBMVETH_FILT_LIST_SIZE 4096
860f242e	104	#define IBMVETH_MAX_BUF_SIZE (1024 * 128)
b6d35182	105
b6d35182	106	static int pool_size[] = { 512, 1024 * 2, 1024 * 16, 1024 * 32, 1024 * 64 };
c033a6d1	107	static int pool_count[] = { 256, 512, 256, 256, 256 };
860f242e	108	static int pool_active[] = { 1, 1, 0, 0, 0};
1da177e4 LT	109
	110	#define IBM_VETH_INVALID_MAP ((u16)0xffff)
	111
	112	struct 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;
b6d35182	123	int active;
860f242e	124	struct kobject kobj;
1da177e4 LT	125	};
	126
	127	struct 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
	136	struct ibmveth_adapter {
	137	struct vio_dev *vdev;
	138	struct net_device *netdev;
bea3348e	139	struct napi_struct napi;
1da177e4 LT	140	struct net_device_stats stats;
	141	unsigned int mcastFilterSize;
	142	unsigned long mac_addr;
1da177e4 LT	143	void * buffer_list_addr;
	144	void * filter_list_addr;
	145	dma_addr_t buffer_list_dma;
	146	dma_addr_t filter_list_dma;
517e80e6	147	struct ibmveth_buff_pool rx_buff_pool[IBMVETH_NUM_BUFF_POOLS];
1da177e4	148	struct ibmveth_rx_q rx_queue;
860f242e	149	int pool_config;
5fc7e01c	150	int rx_csum;
1096d63d RJ	151	void *bounce_buffer;
1096d63d RJ	152	dma_addr_t bounce_buffer_dma;
1da177e4	153
ab78df75 SL	154	u64 fw_ipv6_csum_support;
ab78df75 SL	155	u64 fw_ipv4_csum_support;
1da177e4 LT	156	/* 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;
1da177e4 LT	163	u64 tx_map_failed;
	164	u64 tx_send_failed;
	165	};
	166
d7fbeba6	167	struct ibmveth_buf_desc_fields {
79ef4a4d BK	168	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;
1da177e4 LT	175	};
	176
	177	union ibmveth_buf_desc {
d7fbeba6	178	u64 desc;
1da177e4 LT	179	struct ibmveth_buf_desc_fields fields;
	180	};
	181
	182	struct ibmveth_rx_q_entry {
79ef4a4d BK	183	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;
1da177e4 LT	193	};
	194
	195	#endif /* _IBMVETH_H */