[mirror_ubuntu-bionic-kernel.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

#define IbmVethMaxSendFrags 6

/* 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

/* 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;
}

#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 h_free_logical_lan_buffer(ua, bufsize) \
  plpar_hcall_norets(H_FREE_LOGICAL_LAN_BUFFER, ua, bufsize)

#define IbmVethNumBufferPools 5
#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_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 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;

    /* 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_multidesc_send;
    u64 tx_linearized;
    u64 tx_linearize_failed;
    u64 tx_map_failed;
    u64 tx_send_failed;
    spinlock_t stats_lock;
};

struct ibmveth_buf_desc_fields {
    u32 valid : 1;
    u32 toggle : 1;
    u32 reserved : 6;
    u32 length : 24;
    u32 address;
};

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

struct ibmveth_rx_q_entry {
    u16 toggle : 1;
    u16 valid : 1;
    u16 reserved : 14;
    u16 offset;
    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
	28	#define IbmVethMaxSendFrags 6
	29
	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
1da177e4 LT	44	/* hcall macros */
	45	#define h_register_logical_lan(ua, buflst, rxq, fltlst, mac) \
	46	plpar_hcall_norets(H_REGISTER_LOGICAL_LAN, ua, buflst, rxq, fltlst, mac)
	47
	48	#define h_free_logical_lan(ua) \
	49	plpar_hcall_norets(H_FREE_LOGICAL_LAN, ua)
	50
	51	#define h_add_logical_lan_buffer(ua, buf) \
	52	plpar_hcall_norets(H_ADD_LOGICAL_LAN_BUFFER, ua, buf)
	53
b9377ffc AB	54	static inline long h_send_logical_lan(unsigned long unit_address,
	55	unsigned long desc1, unsigned long desc2, unsigned long desc3,
	56	unsigned long desc4, unsigned long desc5, unsigned long desc6,
	57	unsigned long corellator_in, unsigned long *corellator_out)
	58	{
	59	long rc;
	60	unsigned long retbuf[PLPAR_HCALL9_BUFSIZE];
	61
	62	rc = plpar_hcall9(H_SEND_LOGICAL_LAN, retbuf, unit_address, desc1,
	63	desc2, desc3, desc4, desc5, desc6, corellator_in);
	64
	65	*corellator_out = retbuf[0];
	66
	67	return rc;
	68	}
1da177e4 LT	69
	70	#define h_multicast_ctrl(ua, cmd, mac) \
	71	plpar_hcall_norets(H_MULTICAST_CTRL, ua, cmd, mac)
	72
	73	#define h_change_logical_lan_mac(ua, mac) \
	74	plpar_hcall_norets(H_CHANGE_LOGICAL_LAN_MAC, ua, mac)
	75
b6d35182 SL	76	#define h_free_logical_lan_buffer(ua, bufsize) \
	77	plpar_hcall_norets(H_FREE_LOGICAL_LAN_BUFFER, ua, bufsize)
	78
	79	#define IbmVethNumBufferPools 5
	80	#define IBMVETH_BUFF_OH 22 /* Overhead: 14 ethernet header + 8 opaque handle */
860f242e SL	81	#define IBMVETH_MAX_MTU 68
	82	#define IBMVETH_MAX_POOL_COUNT 4096
	83	#define IBMVETH_MAX_BUF_SIZE (1024 * 128)
b6d35182	84
b6d35182 SL	85	static int pool_size[] = { 512, 1024 * 2, 1024 * 16, 1024 * 32, 1024 * 64 };
b6d35182 SL	86	static int pool_count[] = { 256, 768, 256, 256, 256 };
860f242e	87	static int pool_active[] = { 1, 1, 0, 0, 0};
1da177e4 LT	88
	89	#define IBM_VETH_INVALID_MAP ((u16)0xffff)
	90
	91	struct ibmveth_buff_pool {
	92	u32 size;
	93	u32 index;
	94	u32 buff_size;
	95	u32 threshold;
	96	atomic_t available;
	97	u32 consumer_index;
	98	u32 producer_index;
	99	u16 *free_map;
	100	dma_addr_t *dma_addr;
	101	struct sk_buff **skbuff;
b6d35182	102	int active;
860f242e	103	struct kobject kobj;
1da177e4 LT	104	};
	105
	106	struct ibmveth_rx_q {
	107	u64 index;
	108	u64 num_slots;
	109	u64 toggle;
	110	dma_addr_t queue_dma;
	111	u32 queue_len;
	112	struct ibmveth_rx_q_entry *queue_addr;
	113	};
	114
	115	struct ibmveth_adapter {
	116	struct vio_dev *vdev;
	117	struct net_device *netdev;
	118	struct net_device_stats stats;
	119	unsigned int mcastFilterSize;
	120	unsigned long mac_addr;
1da177e4 LT	121	void * buffer_list_addr;
	122	void * filter_list_addr;
	123	dma_addr_t buffer_list_dma;
	124	dma_addr_t filter_list_dma;
	125	struct ibmveth_buff_pool rx_buff_pool[IbmVethNumBufferPools];
	126	struct ibmveth_rx_q rx_queue;
860f242e	127	int pool_config;
1da177e4 LT	128
	129	/* adapter specific stats */
	130	u64 replenish_task_cycles;
	131	u64 replenish_no_mem;
	132	u64 replenish_add_buff_failure;
	133	u64 replenish_add_buff_success;
	134	u64 rx_invalid_buffer;
	135	u64 rx_no_buffer;
	136	u64 tx_multidesc_send;
	137	u64 tx_linearized;
	138	u64 tx_linearize_failed;
	139	u64 tx_map_failed;
	140	u64 tx_send_failed;
60296d9e	141	spinlock_t stats_lock;
1da177e4 LT	142	};
1da177e4 LT	143
d7fbeba6	144	struct ibmveth_buf_desc_fields {
1da177e4 LT	145	u32 valid : 1;
	146	u32 toggle : 1;
	147	u32 reserved : 6;
	148	u32 length : 24;
	149	u32 address;
	150	};
	151
	152	union ibmveth_buf_desc {
d7fbeba6	153	u64 desc;
1da177e4 LT	154	struct ibmveth_buf_desc_fields fields;
	155	};
	156
	157	struct ibmveth_rx_q_entry {
	158	u16 toggle : 1;
	159	u16 valid : 1;
	160	u16 reserved : 14;
	161	u16 offset;
	162	u32 length;
	163	u64 correlator;
	164	};
	165
	166	#endif /* _IBMVETH_H */