fnic_res.h

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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 _FNIC_RES_H_
#define _FNIC_RES_H_

#include "wq_enet_desc.h"
#include "rq_enet_desc.h"
#include "vnic_wq.h"
#include "vnic_rq.h"
#include "fnic_io.h"
#include "fcpio.h"
#include "vnic_wq_copy.h"
#include "vnic_cq_copy.h"

static inline void fnic_queue_wq_desc(struct vnic_wq *wq,
                      void *os_buf, dma_addr_t dma_addr,
                      unsigned int len, unsigned int fc_eof,
                      int vlan_tag_insert,
                      unsigned int vlan_tag,
                      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,
             0, /* mss_or_csum_offset */
             (u16)fc_eof,
             0, /* offload_mode */
             (u8)eop, (u8)cq_entry,
             1, /* fcoe_encap */
             (u8)vlan_tag_insert,
             (u16)vlan_tag,
             0 /* loopback */);

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

static inline void fnic_queue_wq_eth_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 cq_entry)
{
    struct wq_enet_desc *desc = vnic_wq_next_desc(wq);

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

    vnic_wq_post(wq, os_buf, dma_addr, len, 1, 1);
}

static inline void fnic_queue_wq_copy_desc_icmnd_16(struct vnic_wq_copy *wq,
                            u32 req_id,
                            u32 lunmap_id, u8 spl_flags,
                            u32 sgl_cnt, u32 sense_len,
                            u64 sgl_addr, u64 sns_addr,
                            u8 crn, u8 pri_ta,
                            u8 flags, u8 *scsi_cdb,
                            u8 cdb_len,
                            u32 data_len, u8 *lun,
                            u32 d_id, u16 mss,
                            u32 ratov, u32 edtov)
{
    struct fcpio_host_req *desc = vnic_wq_copy_next_desc(wq);

    desc->hdr.type = FCPIO_ICMND_16; /* enum fcpio_type */
    desc->hdr.status = 0;            /* header status entry */
    desc->hdr._resvd = 0;            /* reserved */
    desc->hdr.tag.u.req_id = req_id; /* id for this request */

    desc->u.icmnd_16.lunmap_id = lunmap_id; /* index into lunmap table */
    desc->u.icmnd_16.special_req_flags = spl_flags; /* exch req flags */
    desc->u.icmnd_16._resvd0[0] = 0;        /* reserved */
    desc->u.icmnd_16._resvd0[1] = 0;        /* reserved */
    desc->u.icmnd_16._resvd0[2] = 0;        /* reserved */
    desc->u.icmnd_16.sgl_cnt = sgl_cnt;     /* scatter-gather list count */
    desc->u.icmnd_16.sense_len = sense_len; /* sense buffer length */
    desc->u.icmnd_16.sgl_addr = sgl_addr;   /* scatter-gather list addr */
    desc->u.icmnd_16.sense_addr = sns_addr; /* sense buffer address */
    desc->u.icmnd_16.crn = crn;             /* SCSI Command Reference No.*/
    desc->u.icmnd_16.pri_ta = pri_ta;   /* SCSI Pri & Task attribute */
    desc->u.icmnd_16._resvd1 = 0;           /* reserved: should be 0 */
    desc->u.icmnd_16.flags = flags;         /* command flags */
    memset(desc->u.icmnd_16.scsi_cdb, 0, CDB_16);
    memcpy(desc->u.icmnd_16.scsi_cdb, scsi_cdb, cdb_len);    /* SCSI CDB */
    desc->u.icmnd_16.data_len = data_len;   /* length of data expected */
    memcpy(desc->u.icmnd_16.lun, lun, LUN_ADDRESS);  /* LUN address */
    desc->u.icmnd_16._resvd2 = 0;           /* reserved */
    hton24(desc->u.icmnd_16.d_id, d_id);    /* FC vNIC only: Target D_ID */
    desc->u.icmnd_16.mss = mss;             /* FC vNIC only: max burst */
    desc->u.icmnd_16.r_a_tov = ratov; /*FC vNIC only: Res. Alloc Timeout */
    desc->u.icmnd_16.e_d_tov = edtov; /*FC vNIC only: Err Detect Timeout */

    vnic_wq_copy_post(wq);
}

static inline void fnic_queue_wq_copy_desc_itmf(struct vnic_wq_copy *wq,
                        u32 req_id, u32 lunmap_id,
                        u32 tm_req, u32 tm_id, u8 *lun,
                        u32 d_id, u32 r_a_tov,
                        u32 e_d_tov)
{
    struct fcpio_host_req *desc = vnic_wq_copy_next_desc(wq);

    desc->hdr.type = FCPIO_ITMF;     /* enum fcpio_type */
    desc->hdr.status = 0;            /* header status entry */
    desc->hdr._resvd = 0;            /* reserved */
    desc->hdr.tag.u.req_id = req_id; /* id for this request */

    desc->u.itmf.lunmap_id = lunmap_id; /* index into lunmap table */
    desc->u.itmf.tm_req = tm_req;       /* SCSI Task Management request */
    desc->u.itmf.t_tag = tm_id;         /* tag of fcpio to be aborted */
    desc->u.itmf._resvd = 0;
    memcpy(desc->u.itmf.lun, lun, LUN_ADDRESS);  /* LUN address */
    desc->u.itmf._resvd1 = 0;
    hton24(desc->u.itmf.d_id, d_id);    /* FC vNIC only: Target D_ID */
    desc->u.itmf.r_a_tov = r_a_tov;     /* FC vNIC only: R_A_TOV in msec */
    desc->u.itmf.e_d_tov = e_d_tov;     /* FC vNIC only: E_D_TOV in msec */

    vnic_wq_copy_post(wq);
}

static inline void fnic_queue_wq_copy_desc_flogi_reg(struct vnic_wq_copy *wq,
                             u32 req_id, u8 format,
                             u32 s_id, u8 *gw_mac)
{
    struct fcpio_host_req *desc = vnic_wq_copy_next_desc(wq);

    desc->hdr.type = FCPIO_FLOGI_REG;     /* enum fcpio_type */
    desc->hdr.status = 0;                 /* header status entry */
    desc->hdr._resvd = 0;                 /* reserved */
    desc->hdr.tag.u.req_id = req_id;      /* id for this request */

    desc->u.flogi_reg.format = format;
    desc->u.flogi_reg._resvd = 0;
    hton24(desc->u.flogi_reg.s_id, s_id);
    memcpy(desc->u.flogi_reg.gateway_mac, gw_mac, ETH_ALEN);

    vnic_wq_copy_post(wq);
}

static inline void fnic_queue_wq_copy_desc_fip_reg(struct vnic_wq_copy *wq,
                           u32 req_id, u32 s_id,
                           u8 *fcf_mac, u8 *ha_mac,
                           u32 r_a_tov, u32 e_d_tov)
{
    struct fcpio_host_req *desc = vnic_wq_copy_next_desc(wq);

    desc->hdr.type = FCPIO_FLOGI_FIP_REG; /* enum fcpio_type */
    desc->hdr.status = 0;                 /* header status entry */
    desc->hdr._resvd = 0;                 /* reserved */
    desc->hdr.tag.u.req_id = req_id;      /* id for this request */

    desc->u.flogi_fip_reg._resvd0 = 0;
    hton24(desc->u.flogi_fip_reg.s_id, s_id);
    memcpy(desc->u.flogi_fip_reg.fcf_mac, fcf_mac, ETH_ALEN);
    desc->u.flogi_fip_reg._resvd1 = 0;
    desc->u.flogi_fip_reg.r_a_tov = r_a_tov;
    desc->u.flogi_fip_reg.e_d_tov = e_d_tov;
    memcpy(desc->u.flogi_fip_reg.ha_mac, ha_mac, ETH_ALEN);
    desc->u.flogi_fip_reg._resvd2 = 0;

    vnic_wq_copy_post(wq);
}

static inline void fnic_queue_wq_copy_desc_fw_reset(struct vnic_wq_copy *wq,
                            u32 req_id)
{
    struct fcpio_host_req *desc = vnic_wq_copy_next_desc(wq);

    desc->hdr.type = FCPIO_RESET;     /* enum fcpio_type */
    desc->hdr.status = 0;             /* header status entry */
    desc->hdr._resvd = 0;             /* reserved */
    desc->hdr.tag.u.req_id = req_id;  /* id for this request */

    vnic_wq_copy_post(wq);
}

static inline void fnic_queue_wq_copy_desc_lunmap(struct vnic_wq_copy *wq,
                          u32 req_id, u64 lunmap_addr,
                          u32 lunmap_len)
{
    struct fcpio_host_req *desc = vnic_wq_copy_next_desc(wq);

    desc->hdr.type = FCPIO_LUNMAP_REQ;  /* enum fcpio_type */
    desc->hdr.status = 0;           /* header status entry */
    desc->hdr._resvd = 0;           /* reserved */
    desc->hdr.tag.u.req_id = req_id;    /* id for this request */

    desc->u.lunmap_req.addr = lunmap_addr;  /* address of the buffer */
    desc->u.lunmap_req.len = lunmap_len;    /* len of the buffer */

    vnic_wq_copy_post(wq);
}

static inline void fnic_queue_rq_desc(struct vnic_rq *rq,
                      void *os_buf, dma_addr_t dma_addr,
                      u16 len)
{
    struct rq_enet_desc *desc = vnic_rq_next_desc(rq);

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

    vnic_rq_post(rq, os_buf, 0, dma_addr, len);
}


struct fnic;

int fnic_get_vnic_config(struct fnic *);
int fnic_alloc_vnic_resources(struct fnic *);
void fnic_free_vnic_resources(struct fnic *);
void fnic_get_res_counts(struct fnic *);
int fnic_set_nic_config(struct fnic *fnic, 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);

#endif /* _FNIC_RES_H_ */