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/*
* Copyright 2008 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)
{
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,
0 /* loopback */);
wmb();
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)
{
enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
0, 0, 0, 0, 0,
eop, 0 /* !SOP */, eop);
}
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)
{
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);
}
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)
{
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);
}
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)
{
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);
}
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)
{
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);
}
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);
wmb();
vnic_rq_post(rq, os_buf, os_buf_index, dma_addr, len);
}
struct enic;
int enic_get_vnic_config(struct enic *);
void enic_add_station_addr(struct enic *enic);
void enic_add_multicast_addr(struct enic *enic, u8 *addr);
void enic_del_multicast_addr(struct enic *enic, u8 *addr);
void enic_add_vlan(struct enic *enic, u16 vlanid);
void 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);
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_ */
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