[linux-block.git] / drivers / net / ibmveth.h

/**************************************************************************/
/*                                                                        */
/* IBM eServer i/[Series Virtual Ethernet Device Driver                   */
/* Copyright (C) 2003 IBM Corp.                                           */
/*  Dave Larson (larson1@us.ibm.com)                                      */
/*  Santiago Leon (santil@us.ibm.com)                                     */
/*                                                                        */
/*  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  */
/*                                                                        */
/**************************************************************************/

#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 IbmVethNumBufferPools 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_MAX_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, 768, 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[IbmVethNumBufferPools];
    struct ibmveth_rx_q rx_queue;
    int pool_config;
    int rx_csum;
    void *bounce_buffer;
    dma_addr_t bounce_buffer_dma;

    /* 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;
    spinlock_t stats_lock;
};

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
1da177e4 LT	1	/**************************************************************************/
	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
1da177e4 LT	28	/* 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
ff5bfc35 SR	42	#define IBMVETH_ILLAN_PADDED_PKT_CSUM 0x0000000000002000UL
	43	#define IBMVETH_ILLAN_TRUNK_PRI_MASK 0x0000000000000F00UL
	44	#define IBMVETH_ILLAN_IPV6_TCP_CSUM 0x0000000000000004UL
	45	#define IBMVETH_ILLAN_IPV4_TCP_CSUM 0x0000000000000002UL
	46	#define IBMVETH_ILLAN_ACTIVE_TRUNK 0x0000000000000001UL
79ef4a4d	47
1da177e4 LT	48	/* 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
b9377ffc AB	58	static 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	}
1da177e4	73
f4ff2872 BK	74	static 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
1da177e4 LT	89	#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
b6d35182	95	#define IbmVethNumBufferPools 5
1096d63d	96	#define IBMVETH_IO_ENTITLEMENT_DEFAULT 4243456 /* MTU of 1500 needs 4.2Mb */
b6d35182	97	#define IBMVETH_BUFF_OH 22 /* Overhead: 14 ethernet header + 8 opaque handle */
860f242e SL	98	#define IBMVETH_MAX_MTU 68
860f242e SL	99	#define IBMVETH_MAX_POOL_COUNT 4096
1096d63d RJ	100	#define IBMVETH_BUFF_LIST_SIZE 4096
1096d63d RJ	101	#define IBMVETH_FILT_LIST_SIZE 4096
860f242e	102	#define IBMVETH_MAX_BUF_SIZE (1024 * 128)
b6d35182	103
b6d35182 SL	104	static int pool_size[] = { 512, 1024 * 2, 1024 * 16, 1024 * 32, 1024 * 64 };
b6d35182 SL	105	static int pool_count[] = { 256, 768, 256, 256, 256 };
860f242e	106	static int pool_active[] = { 1, 1, 0, 0, 0};
1da177e4 LT	107
	108	#define IBM_VETH_INVALID_MAP ((u16)0xffff)
	109
	110	struct 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;
b6d35182	121	int active;
860f242e	122	struct kobject kobj;
1da177e4 LT	123	};
	124
	125	struct 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
	134	struct ibmveth_adapter {
	135	struct vio_dev *vdev;
	136	struct net_device *netdev;
bea3348e	137	struct napi_struct napi;
1da177e4 LT	138	struct net_device_stats stats;
	139	unsigned int mcastFilterSize;
	140	unsigned long mac_addr;
1da177e4 LT	141	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;
860f242e	147	int pool_config;
5fc7e01c	148	int rx_csum;
1096d63d RJ	149	void *bounce_buffer;
1096d63d RJ	150	dma_addr_t bounce_buffer_dma;
1da177e4 LT	151
	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;
1da177e4 LT	159	u64 tx_map_failed;
1da177e4 LT	160	u64 tx_send_failed;
60296d9e	161	spinlock_t stats_lock;
1da177e4 LT	162	};
1da177e4 LT	163
d7fbeba6	164	struct ibmveth_buf_desc_fields {
79ef4a4d BK	165	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;
1da177e4 LT	172	};
	173
	174	union ibmveth_buf_desc {
d7fbeba6	175	u64 desc;
1da177e4 LT	176	struct ibmveth_buf_desc_fields fields;
	177	};
	178
	179	struct ibmveth_rx_q_entry {
79ef4a4d BK	180	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;
1da177e4 LT	190	};
	191
	192	#endif /* _IBMVETH_H */