diff options
Diffstat (limited to 'drivers/net/enic/enic_res.h')
| -rw-r--r-- | drivers/net/enic/enic_res.h | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/drivers/net/enic/enic_res.h b/drivers/net/enic/enic_res.h new file mode 100644 index 00000000000..68534a29b7a --- /dev/null +++ b/drivers/net/enic/enic_res.h @@ -0,0 +1,151 @@ +/* + * 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_ */ |