[deliverable/linux.git] / drivers / net / enic / enic_res.h

/*
 * Copyright 2008-2010 Cisco Systems, Inc.  All rights reserved.
 * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
 *
 * This program is free software; you may redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; version 2 of the License.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 */

#ifndef _ENIC_RES_H_
#define _ENIC_RES_H_

#include "wq_enet_desc.h"
#include "rq_enet_desc.h"
#include "vnic_wq.h"
#include "vnic_rq.h"

#define ENIC_MIN_WQ_DESCS		64
#define ENIC_MAX_WQ_DESCS		4096
#define ENIC_MIN_RQ_DESCS		64
#define ENIC_MAX_RQ_DESCS		4096

#define ENIC_MIN_MTU			576  /* minimum for IPv4 */
#define ENIC_MAX_MTU			9000

#define ENIC_MULTICAST_PERFECT_FILTERS	32

#define ENIC_NON_TSO_MAX_DESC		16

#define ENIC_SETTING(enic, f) ((enic->config.flags & VENETF_##f) ? 1 : 0)

static inline void enic_queue_wq_desc_ex(struct vnic_wq *wq,
	void *os_buf, dma_addr_t dma_addr, unsigned int len,
	unsigned int mss_or_csum_offset, unsigned int hdr_len,
	int vlan_tag_insert, unsigned int vlan_tag,
	int offload_mode, int cq_entry, int sop, int eop, int loopback)
{
	struct wq_enet_desc *desc = vnic_wq_next_desc(wq);

	wq_enet_desc_enc(desc,
		(u64)dma_addr | VNIC_PADDR_TARGET,
		(u16)len,
		(u16)mss_or_csum_offset,
		(u16)hdr_len, (u8)offload_mode,
		(u8)eop, (u8)cq_entry,
		0, /* fcoe_encap */
		(u8)vlan_tag_insert,
		(u16)vlan_tag,
		(u8)loopback);

	vnic_wq_post(wq, os_buf, dma_addr, len, sop, eop);
}

static inline void enic_queue_wq_desc_cont(struct vnic_wq *wq,
	void *os_buf, dma_addr_t dma_addr, unsigned int len,
	int eop, int loopback)
{
	enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
		0, 0, 0, 0, 0,
		eop, 0 /* !SOP */, eop, loopback);
}

static inline void enic_queue_wq_desc(struct vnic_wq *wq, void *os_buf,
	dma_addr_t dma_addr, unsigned int len, int vlan_tag_insert,
	unsigned int vlan_tag, int eop, int loopback)
{
	enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
		0, 0, vlan_tag_insert, vlan_tag,
		WQ_ENET_OFFLOAD_MODE_CSUM,
		eop, 1 /* SOP */, eop, loopback);
}

static inline void enic_queue_wq_desc_csum(struct vnic_wq *wq,
	void *os_buf, dma_addr_t dma_addr, unsigned int len,
	int ip_csum, int tcpudp_csum, int vlan_tag_insert,
	unsigned int vlan_tag, int eop, int loopback)
{
	enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
		(ip_csum ? 1 : 0) + (tcpudp_csum ? 2 : 0),
		0, vlan_tag_insert, vlan_tag,
		WQ_ENET_OFFLOAD_MODE_CSUM,
		eop, 1 /* SOP */, eop, loopback);
}

static inline void enic_queue_wq_desc_csum_l4(struct vnic_wq *wq,
	void *os_buf, dma_addr_t dma_addr, unsigned int len,
	unsigned int csum_offset, unsigned int hdr_len,
	int vlan_tag_insert, unsigned int vlan_tag, int eop, int loopback)
{
	enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
		csum_offset, hdr_len, vlan_tag_insert, vlan_tag,
		WQ_ENET_OFFLOAD_MODE_CSUM_L4,
		eop, 1 /* SOP */, eop, loopback);
}

static inline void enic_queue_wq_desc_tso(struct vnic_wq *wq,
	void *os_buf, dma_addr_t dma_addr, unsigned int len,
	unsigned int mss, unsigned int hdr_len, int vlan_tag_insert,
	unsigned int vlan_tag, int eop, int loopback)
{
	enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
		mss, hdr_len, vlan_tag_insert, vlan_tag,
		WQ_ENET_OFFLOAD_MODE_TSO,
		eop, 1 /* SOP */, eop, loopback);
}

static inline void enic_queue_rq_desc(struct vnic_rq *rq,
	void *os_buf, unsigned int os_buf_index,
	dma_addr_t dma_addr, unsigned int len)
{
	struct rq_enet_desc *desc = vnic_rq_next_desc(rq);
	u8 type = os_buf_index ?
		RQ_ENET_TYPE_NOT_SOP : RQ_ENET_TYPE_ONLY_SOP;

	rq_enet_desc_enc(desc,
		(u64)dma_addr | VNIC_PADDR_TARGET,
		type, (u16)len);

	vnic_rq_post(rq, os_buf, os_buf_index, dma_addr, len);
}

struct enic;

int enic_get_vnic_config(struct enic *);
int enic_add_vlan(struct enic *enic, u16 vlanid);
int enic_del_vlan(struct enic *enic, u16 vlanid);
int enic_set_nic_cfg(struct enic *enic, u8 rss_default_cpu, u8 rss_hash_type,
	u8 rss_hash_bits, u8 rss_base_cpu, u8 rss_enable, u8 tso_ipid_split_en,
	u8 ig_vlan_strip_en);
int enic_set_rss_key(struct enic *enic, dma_addr_t key_pa, u64 len);
int enic_set_rss_cpu(struct enic *enic, dma_addr_t cpu_pa, u64 len);
void enic_get_res_counts(struct enic *enic);
void enic_init_vnic_resources(struct enic *enic);
int enic_alloc_vnic_resources(struct enic *);
void enic_free_vnic_resources(struct enic *);

#endif /* _ENIC_RES_H_ */
Commit	Line	Data
01f2e4ea	1	/*
29046f9b	2	* Copyright 2008-2010 Cisco Systems, Inc. All rights reserved.
01f2e4ea SF	3	* Copyright 2007 Nuova Systems, Inc. All rights reserved.
	4	*
	5	* This program is free software; you may redistribute it and/or modify
	6	* it under the terms of the GNU General Public License as published by
	7	* the Free Software Foundation; version 2 of the License.
	8	*
	9	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
	10	* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	11	* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
	12	* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
	13	* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
	14	* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
	15	* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	16	* SOFTWARE.
	17	*
	18	*/
	19
	20	#ifndef _ENIC_RES_H_
	21	#define _ENIC_RES_H_
	22
	23	#include "wq_enet_desc.h"
	24	#include "rq_enet_desc.h"
	25	#include "vnic_wq.h"
	26	#include "vnic_rq.h"
	27
	28	#define ENIC_MIN_WQ_DESCS 64
	29	#define ENIC_MAX_WQ_DESCS 4096
	30	#define ENIC_MIN_RQ_DESCS 64
	31	#define ENIC_MAX_RQ_DESCS 4096
	32
	33	#define ENIC_MIN_MTU 576 /* minimum for IPv4 */
	34	#define ENIC_MAX_MTU 9000
	35
	36	#define ENIC_MULTICAST_PERFECT_FILTERS 32
	37
	38	#define ENIC_NON_TSO_MAX_DESC 16
	39
	40	#define ENIC_SETTING(enic, f) ((enic->config.flags & VENETF_##f) ? 1 : 0)
	41
	42	static inline void enic_queue_wq_desc_ex(struct vnic_wq *wq,
	43	void *os_buf, dma_addr_t dma_addr, unsigned int len,
	44	unsigned int mss_or_csum_offset, unsigned int hdr_len,
	45	int vlan_tag_insert, unsigned int vlan_tag,
1825aca6	46	int offload_mode, int cq_entry, int sop, int eop, int loopback)
01f2e4ea SF	47	{
	48	struct wq_enet_desc *desc = vnic_wq_next_desc(wq);
	49
	50	wq_enet_desc_enc(desc,
	51	(u64)dma_addr \| VNIC_PADDR_TARGET,
	52	(u16)len,
	53	(u16)mss_or_csum_offset,
	54	(u16)hdr_len, (u8)offload_mode,
	55	(u8)eop, (u8)cq_entry,
	56	0, /* fcoe_encap */
	57	(u8)vlan_tag_insert,
	58	(u16)vlan_tag,
1825aca6	59	(u8)loopback);
01f2e4ea	60
01f2e4ea SF	61	vnic_wq_post(wq, os_buf, dma_addr, len, sop, eop);
	62	}
	63
	64	static inline void enic_queue_wq_desc_cont(struct vnic_wq *wq,
1825aca6 VK	65	void *os_buf, dma_addr_t dma_addr, unsigned int len,
1825aca6 VK	66	int eop, int loopback)
01f2e4ea SF	67	{
	68	enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
	69	0, 0, 0, 0, 0,
1825aca6	70	eop, 0 /* !SOP */, eop, loopback);
01f2e4ea SF	71	}
	72
	73	static inline void enic_queue_wq_desc(struct vnic_wq wq, void os_buf,
	74	dma_addr_t dma_addr, unsigned int len, int vlan_tag_insert,
1825aca6	75	unsigned int vlan_tag, int eop, int loopback)
01f2e4ea SF	76	{
	77	enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
	78	0, 0, vlan_tag_insert, vlan_tag,
	79	WQ_ENET_OFFLOAD_MODE_CSUM,
1825aca6	80	eop, 1 /* SOP */, eop, loopback);
01f2e4ea SF	81	}
	82
	83	static inline void enic_queue_wq_desc_csum(struct vnic_wq *wq,
	84	void *os_buf, dma_addr_t dma_addr, unsigned int len,
	85	int ip_csum, int tcpudp_csum, int vlan_tag_insert,
1825aca6	86	unsigned int vlan_tag, int eop, int loopback)
01f2e4ea SF	87	{
	88	enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
	89	(ip_csum ? 1 : 0) + (tcpudp_csum ? 2 : 0),
	90	0, vlan_tag_insert, vlan_tag,
	91	WQ_ENET_OFFLOAD_MODE_CSUM,
1825aca6	92	eop, 1 /* SOP */, eop, loopback);
01f2e4ea SF	93	}
	94
	95	static inline void enic_queue_wq_desc_csum_l4(struct vnic_wq *wq,
	96	void *os_buf, dma_addr_t dma_addr, unsigned int len,
	97	unsigned int csum_offset, unsigned int hdr_len,
1825aca6	98	int vlan_tag_insert, unsigned int vlan_tag, int eop, int loopback)
01f2e4ea SF	99	{
	100	enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
	101	csum_offset, hdr_len, vlan_tag_insert, vlan_tag,
	102	WQ_ENET_OFFLOAD_MODE_CSUM_L4,
1825aca6	103	eop, 1 /* SOP */, eop, loopback);
01f2e4ea SF	104	}
	105
	106	static inline void enic_queue_wq_desc_tso(struct vnic_wq *wq,
	107	void *os_buf, dma_addr_t dma_addr, unsigned int len,
	108	unsigned int mss, unsigned int hdr_len, int vlan_tag_insert,
1825aca6	109	unsigned int vlan_tag, int eop, int loopback)
01f2e4ea SF	110	{
	111	enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
	112	mss, hdr_len, vlan_tag_insert, vlan_tag,
	113	WQ_ENET_OFFLOAD_MODE_TSO,
1825aca6	114	eop, 1 /* SOP */, eop, loopback);
01f2e4ea SF	115	}
	116
	117	static inline void enic_queue_rq_desc(struct vnic_rq *rq,
	118	void *os_buf, unsigned int os_buf_index,
	119	dma_addr_t dma_addr, unsigned int len)
	120	{
	121	struct rq_enet_desc *desc = vnic_rq_next_desc(rq);
	122	u8 type = os_buf_index ?
	123	RQ_ENET_TYPE_NOT_SOP : RQ_ENET_TYPE_ONLY_SOP;
	124
	125	rq_enet_desc_enc(desc,
	126	(u64)dma_addr \| VNIC_PADDR_TARGET,
	127	type, (u16)len);
	128
01f2e4ea SF	129	vnic_rq_post(rq, os_buf, os_buf_index, dma_addr, len);
	130	}
	131
	132	struct enic;
	133
	134	int enic_get_vnic_config(struct enic *);
383ab92f VK	135	int enic_add_vlan(struct enic *enic, u16 vlanid);
383ab92f VK	136	int enic_del_vlan(struct enic *enic, u16 vlanid);
01f2e4ea SF	137	int enic_set_nic_cfg(struct enic *enic, u8 rss_default_cpu, u8 rss_hash_type,
	138	u8 rss_hash_bits, u8 rss_base_cpu, u8 rss_enable, u8 tso_ipid_split_en,
	139	u8 ig_vlan_strip_en);
6ba9cdc0 SF	140	int enic_set_rss_key(struct enic *enic, dma_addr_t key_pa, u64 len);
6ba9cdc0 SF	141	int enic_set_rss_cpu(struct enic *enic, dma_addr_t cpu_pa, u64 len);
01f2e4ea SF	142	void enic_get_res_counts(struct enic *enic);
	143	void enic_init_vnic_resources(struct enic *enic);
	144	int enic_alloc_vnic_resources(struct enic *);
	145	void enic_free_vnic_resources(struct enic *);
	146
	147	#endif /* _ENIC_RES_H_ */