[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

/* 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;
}

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_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 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;

    /* 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 valid : 1;
    u32 toggle : 1;
    u32 reserved : 4;
    u32 no_csum : 1;
    u32 csum_good : 1;
    u32 length : 24;
    u32 address;
};

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

struct ibmveth_illan_attributes_fields {
	u32 reserved;
	u32 reserved2 : 18;
	u32 csum_offload_padded_pkt_support : 1;
	u32 reserved3 : 1;
	u32 trunk_priority : 4;
	u32 reserved4 : 5;
	u32 tcp_csum_offload_ipv6 : 1;
	u32 tcp_csum_offload_ipv4 : 1;
	u32 active_trunk : 1;
};

union ibmveth_illan_attributes {
	u64 desc;
	struct ibmveth_illan_attributes_fields fields;
};

struct ibmveth_rx_q_entry {
    u16 toggle : 1;
    u16 valid : 1;
    u16 reserved : 4;
    u16 no_csum : 1;
    u16 csum_good : 1;
    u16 reserved2 : 8;
    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
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
1da177e4 LT	42	/* hcall macros */
	43	#define h_register_logical_lan(ua, buflst, rxq, fltlst, mac) \
	44	plpar_hcall_norets(H_REGISTER_LOGICAL_LAN, ua, buflst, rxq, fltlst, mac)
	45
	46	#define h_free_logical_lan(ua) \
	47	plpar_hcall_norets(H_FREE_LOGICAL_LAN, ua)
	48
	49	#define h_add_logical_lan_buffer(ua, buf) \
	50	plpar_hcall_norets(H_ADD_LOGICAL_LAN_BUFFER, ua, buf)
	51
b9377ffc AB	52	static inline long h_send_logical_lan(unsigned long unit_address,
	53	unsigned long desc1, unsigned long desc2, unsigned long desc3,
	54	unsigned long desc4, unsigned long desc5, unsigned long desc6,
	55	unsigned long corellator_in, unsigned long *corellator_out)
	56	{
	57	long rc;
	58	unsigned long retbuf[PLPAR_HCALL9_BUFSIZE];
	59
	60	rc = plpar_hcall9(H_SEND_LOGICAL_LAN, retbuf, unit_address, desc1,
	61	desc2, desc3, desc4, desc5, desc6, corellator_in);
	62
	63	*corellator_out = retbuf[0];
	64
	65	return rc;
	66	}
1da177e4	67
f4ff2872 BK	68	static inline long h_illan_attributes(unsigned long unit_address,
	69	unsigned long reset_mask, unsigned long set_mask,
	70	unsigned long *ret_attributes)
	71	{
	72	long rc;
	73	unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
	74
	75	rc = plpar_hcall(H_ILLAN_ATTRIBUTES, retbuf, unit_address,
	76	reset_mask, set_mask);
	77
	78	*ret_attributes = retbuf[0];
	79
	80	return rc;
	81	}
	82
1da177e4 LT	83	#define h_multicast_ctrl(ua, cmd, mac) \
	84	plpar_hcall_norets(H_MULTICAST_CTRL, ua, cmd, mac)
	85
	86	#define h_change_logical_lan_mac(ua, mac) \
	87	plpar_hcall_norets(H_CHANGE_LOGICAL_LAN_MAC, ua, mac)
	88
b6d35182 SL	89	#define IbmVethNumBufferPools 5
b6d35182 SL	90	#define IBMVETH_BUFF_OH 22 /* Overhead: 14 ethernet header + 8 opaque handle */
860f242e SL	91	#define IBMVETH_MAX_MTU 68
	92	#define IBMVETH_MAX_POOL_COUNT 4096
	93	#define IBMVETH_MAX_BUF_SIZE (1024 * 128)
b6d35182	94
b6d35182 SL	95	static int pool_size[] = { 512, 1024 * 2, 1024 * 16, 1024 * 32, 1024 * 64 };
b6d35182 SL	96	static int pool_count[] = { 256, 768, 256, 256, 256 };
860f242e	97	static int pool_active[] = { 1, 1, 0, 0, 0};
1da177e4 LT	98
	99	#define IBM_VETH_INVALID_MAP ((u16)0xffff)
	100
	101	struct ibmveth_buff_pool {
	102	u32 size;
	103	u32 index;
	104	u32 buff_size;
	105	u32 threshold;
	106	atomic_t available;
	107	u32 consumer_index;
	108	u32 producer_index;
	109	u16 *free_map;
	110	dma_addr_t *dma_addr;
	111	struct sk_buff **skbuff;
b6d35182	112	int active;
860f242e	113	struct kobject kobj;
1da177e4 LT	114	};
	115
	116	struct ibmveth_rx_q {
	117	u64 index;
	118	u64 num_slots;
	119	u64 toggle;
	120	dma_addr_t queue_dma;
	121	u32 queue_len;
	122	struct ibmveth_rx_q_entry *queue_addr;
	123	};
	124
	125	struct ibmveth_adapter {
	126	struct vio_dev *vdev;
	127	struct net_device *netdev;
bea3348e	128	struct napi_struct napi;
1da177e4 LT	129	struct net_device_stats stats;
	130	unsigned int mcastFilterSize;
	131	unsigned long mac_addr;
1da177e4 LT	132	void * buffer_list_addr;
	133	void * filter_list_addr;
	134	dma_addr_t buffer_list_dma;
	135	dma_addr_t filter_list_dma;
	136	struct ibmveth_buff_pool rx_buff_pool[IbmVethNumBufferPools];
	137	struct ibmveth_rx_q rx_queue;
860f242e	138	int pool_config;
5fc7e01c	139	int rx_csum;
1da177e4 LT	140
	141	/* adapter specific stats */
	142	u64 replenish_task_cycles;
	143	u64 replenish_no_mem;
	144	u64 replenish_add_buff_failure;
	145	u64 replenish_add_buff_success;
	146	u64 rx_invalid_buffer;
	147	u64 rx_no_buffer;
1da177e4 LT	148	u64 tx_map_failed;
1da177e4 LT	149	u64 tx_send_failed;
60296d9e	150	spinlock_t stats_lock;
1da177e4 LT	151	};
1da177e4 LT	152
d7fbeba6	153	struct ibmveth_buf_desc_fields {
1da177e4 LT	154	u32 valid : 1;
1da177e4 LT	155	u32 toggle : 1;
f4ff2872 BK	156	u32 reserved : 4;
	157	u32 no_csum : 1;
	158	u32 csum_good : 1;
1da177e4 LT	159	u32 length : 24;
	160	u32 address;
	161	};
	162
	163	union ibmveth_buf_desc {
d7fbeba6	164	u64 desc;
1da177e4 LT	165	struct ibmveth_buf_desc_fields fields;
	166	};
	167
f4ff2872 BK	168	struct ibmveth_illan_attributes_fields {
	169	u32 reserved;
	170	u32 reserved2 : 18;
	171	u32 csum_offload_padded_pkt_support : 1;
	172	u32 reserved3 : 1;
	173	u32 trunk_priority : 4;
	174	u32 reserved4 : 5;
	175	u32 tcp_csum_offload_ipv6 : 1;
	176	u32 tcp_csum_offload_ipv4 : 1;
	177	u32 active_trunk : 1;
	178	};
	179
	180	union ibmveth_illan_attributes {
	181	u64 desc;
	182	struct ibmveth_illan_attributes_fields fields;
	183	};
	184
1da177e4 LT	185	struct ibmveth_rx_q_entry {
	186	u16 toggle : 1;
	187	u16 valid : 1;
f4ff2872 BK	188	u16 reserved : 4;
	189	u16 no_csum : 1;
	190	u16 csum_good : 1;
	191	u16 reserved2 : 8;
1da177e4 LT	192	u16 offset;
	193	u32 length;
	194	u64 correlator;
	195	};
	196
	197	#endif /* _IBMVETH_H */