150 lines
4.8 KiB
C
150 lines
4.8 KiB
C
/*
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* Copyright 2008 Cisco Systems, Inc. All rights reserved.
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* Copyright 2007 Nuova Systems, Inc. All rights reserved.
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*
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* This program is free software; you may redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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*/
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#ifndef _ENIC_RES_H_
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#define _ENIC_RES_H_
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#include "wq_enet_desc.h"
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#include "rq_enet_desc.h"
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#include "vnic_wq.h"
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#include "vnic_rq.h"
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#define ENIC_MIN_WQ_DESCS 64
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#define ENIC_MAX_WQ_DESCS 4096
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#define ENIC_MIN_RQ_DESCS 64
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#define ENIC_MAX_RQ_DESCS 4096
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#define ENIC_MIN_MTU 576 /* minimum for IPv4 */
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#define ENIC_MAX_MTU 9000
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#define ENIC_MULTICAST_PERFECT_FILTERS 32
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#define ENIC_NON_TSO_MAX_DESC 16
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#define ENIC_SETTING(enic, f) ((enic->config.flags & VENETF_##f) ? 1 : 0)
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static inline void enic_queue_wq_desc_ex(struct vnic_wq *wq,
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void *os_buf, dma_addr_t dma_addr, unsigned int len,
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unsigned int mss_or_csum_offset, unsigned int hdr_len,
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int vlan_tag_insert, unsigned int vlan_tag,
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int offload_mode, int cq_entry, int sop, int eop)
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{
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struct wq_enet_desc *desc = vnic_wq_next_desc(wq);
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wq_enet_desc_enc(desc,
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(u64)dma_addr | VNIC_PADDR_TARGET,
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(u16)len,
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(u16)mss_or_csum_offset,
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(u16)hdr_len, (u8)offload_mode,
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(u8)eop, (u8)cq_entry,
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0, /* fcoe_encap */
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(u8)vlan_tag_insert,
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(u16)vlan_tag,
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0 /* loopback */);
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vnic_wq_post(wq, os_buf, dma_addr, len, sop, eop);
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}
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static inline void enic_queue_wq_desc_cont(struct vnic_wq *wq,
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void *os_buf, dma_addr_t dma_addr, unsigned int len, int eop)
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{
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enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
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0, 0, 0, 0, 0,
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eop, 0 /* !SOP */, eop);
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}
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static inline void enic_queue_wq_desc(struct vnic_wq *wq, void *os_buf,
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dma_addr_t dma_addr, unsigned int len, int vlan_tag_insert,
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unsigned int vlan_tag, int eop)
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{
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enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
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0, 0, vlan_tag_insert, vlan_tag,
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WQ_ENET_OFFLOAD_MODE_CSUM,
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eop, 1 /* SOP */, eop);
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}
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static inline void enic_queue_wq_desc_csum(struct vnic_wq *wq,
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void *os_buf, dma_addr_t dma_addr, unsigned int len,
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int ip_csum, int tcpudp_csum, int vlan_tag_insert,
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unsigned int vlan_tag, int eop)
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{
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enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
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(ip_csum ? 1 : 0) + (tcpudp_csum ? 2 : 0),
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0, vlan_tag_insert, vlan_tag,
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WQ_ENET_OFFLOAD_MODE_CSUM,
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eop, 1 /* SOP */, eop);
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}
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static inline void enic_queue_wq_desc_csum_l4(struct vnic_wq *wq,
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void *os_buf, dma_addr_t dma_addr, unsigned int len,
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unsigned int csum_offset, unsigned int hdr_len,
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int vlan_tag_insert, unsigned int vlan_tag, int eop)
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{
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enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
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csum_offset, hdr_len, vlan_tag_insert, vlan_tag,
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WQ_ENET_OFFLOAD_MODE_CSUM_L4,
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eop, 1 /* SOP */, eop);
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}
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static inline void enic_queue_wq_desc_tso(struct vnic_wq *wq,
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void *os_buf, dma_addr_t dma_addr, unsigned int len,
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unsigned int mss, unsigned int hdr_len, int vlan_tag_insert,
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unsigned int vlan_tag, int eop)
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{
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enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
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mss, hdr_len, vlan_tag_insert, vlan_tag,
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WQ_ENET_OFFLOAD_MODE_TSO,
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eop, 1 /* SOP */, eop);
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}
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static inline void enic_queue_rq_desc(struct vnic_rq *rq,
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void *os_buf, unsigned int os_buf_index,
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dma_addr_t dma_addr, unsigned int len)
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{
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struct rq_enet_desc *desc = vnic_rq_next_desc(rq);
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u8 type = os_buf_index ?
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RQ_ENET_TYPE_NOT_SOP : RQ_ENET_TYPE_ONLY_SOP;
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rq_enet_desc_enc(desc,
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(u64)dma_addr | VNIC_PADDR_TARGET,
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type, (u16)len);
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vnic_rq_post(rq, os_buf, os_buf_index, dma_addr, len);
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}
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struct enic;
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int enic_get_vnic_config(struct enic *);
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void enic_add_station_addr(struct enic *enic);
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void enic_add_multicast_addr(struct enic *enic, u8 *addr);
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void enic_del_multicast_addr(struct enic *enic, u8 *addr);
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void enic_add_vlan(struct enic *enic, u16 vlanid);
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void enic_del_vlan(struct enic *enic, u16 vlanid);
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int enic_set_nic_cfg(struct enic *enic, u8 rss_default_cpu, u8 rss_hash_type,
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u8 rss_hash_bits, u8 rss_base_cpu, u8 rss_enable, u8 tso_ipid_split_en,
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u8 ig_vlan_strip_en);
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int enic_set_rss_key(struct enic *enic, dma_addr_t key_pa, u64 len);
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int enic_set_rss_cpu(struct enic *enic, dma_addr_t cpu_pa, u64 len);
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void enic_get_res_counts(struct enic *enic);
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void enic_init_vnic_resources(struct enic *enic);
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int enic_alloc_vnic_resources(struct enic *);
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void enic_free_vnic_resources(struct enic *);
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#endif /* _ENIC_RES_H_ */
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