/* bnx2x_sriov.h: Broadcom Everest network driver.
*
* Copyright 2009-2012 Broadcom Corporation
*
* Unless you and Broadcom execute a separate written software license
* agreement governing use of this software, this software is licensed to you
* under the terms of the GNU General Public License version 2, available
* at http://www.gnu.org/licenses/old-licenses/gpl-2.0.html (the "GPL").
*
* Notwithstanding the above, under no circumstances may you combine this
* software in any way with any other Broadcom software provided under a
* license other than the GPL, without Broadcom's express prior written
* consent.
*
* Maintained by: Eilon Greenstein <eilong@broadcom.com>
* Written by: Shmulik Ravid <shmulikr@broadcom.com>
* Ariel Elior <ariele@broadcom.com>
*/
#ifndef BNX2X_SRIOV_H
#define BNX2X_SRIOV_H
#include "bnx2x_vfpf.h"
#include "bnx2x_cmn.h"
/* The bnx2x device structure holds vfdb structure described below.
* The VF array is indexed by the relative vfid.
*/
#define BNX2X_VF_MAX_QUEUES 16
struct bnx2x_sriov {
u32 first_vf_in_pf;
/* standard SRIOV capability fields, mostly for debugging */
int pos; /* capability position */
int nres; /* number of resources */
u32 cap; /* SR-IOV Capabilities */
u16 ctrl; /* SR-IOV Control */
u16 total; /* total VFs associated with the PF */
u16 initial; /* initial VFs associated with the PF */
u16 nr_virtfn; /* number of VFs available */
u16 offset; /* first VF Routing ID offset */
u16 stride; /* following VF stride */
u32 pgsz; /* page size for BAR alignment */
u8 link; /* Function Dependency Link */
};
/* bars */
struct bnx2x_vf_bar {
u64 bar;
u32 size;
};
/* vf queue (used both for rx or tx) */
struct bnx2x_vf_queue {
struct eth_context *cxt;
/* MACs object */
struct bnx2x_vlan_mac_obj mac_obj;
/* VLANs object */
struct bnx2x_vlan_mac_obj vlan_obj;
atomic_t vlan_count; /* 0 means vlan-0 is set ~ untagged */
/* Queue Slow-path State object */
struct bnx2x_queue_sp_obj sp_obj;
u32 cid;
u16 index;
u16 sb_idx;
};
/* struct bnx2x_vfop_qctor_params - prepare queue construction parameters:
* q-init, q-setup and SB index
*/
struct bnx2x_vfop_qctor_params {
struct bnx2x_queue_state_params qstate;
struct bnx2x_queue_setup_params prep_qsetup;
};
/* VFOP parameters (one copy per VF) */
union bnx2x_vfop_params {
struct bnx2x_vlan_mac_ramrod_params vlan_mac;
struct bnx2x_rx_mode_ramrod_params rx_mode;
struct bnx2x_mcast_ramrod_params mcast;
struct bnx2x_config_rss_params rss;
struct bnx2x_vfop_qctor_params qctor;
};
/* forward */
struct bnx2x_virtf;
/* VFOP definitions */
typedef void (*vfop_handler_t)(struct bnx2x *bp, struct bnx2x_virtf *vf);
/* VFOP queue filters command additional arguments */
struct bnx2x_vfop_filter {
struct list_head link;
int type;
#define BNX2X_VFOP_FILTER_MAC 1
#define BNX2X_VFOP_FILTER_VLAN 2
bool add;
u8 *mac;
u16 vid;
};
struct bnx2x_vfop_filters {
int add_cnt;
struct list_head head;
struct bnx2x_vfop_filter filters[];
};
/* transient list allocated, built and saved until its
* passed to the SP-VERBs layer.
*/
struct bnx2x_vfop_args_mcast {
int mc_num;
struct bnx2x_mcast_list_elem *mc;
};
struct bnx2x_vfop_args_qctor {
int qid;
u16 sb_idx;
};
struct bnx2x_vfop_args_qdtor {
int qid;
struct eth_context *cxt;
};
struct bnx2x_vfop_args_defvlan {
int qid;
bool enable;
u16 vid;
u8 prio;
};
struct bnx2x_vfop_args_qx {
int qid;
bool en_add;
};
struct bnx2x_vfop_args_filters {
struct bnx2x_vfop_filters *multi_filter;
atomic_t *credit; /* non NULL means 'don't consume credit' */
};
union bnx2x_vfop_args {
struct bnx2x_vfop_args_mcast mc_list;
struct bnx2x_vfop_args_qctor qctor;
struct bnx2x_vfop_args_qdtor qdtor;
struct bnx2x_vfop_args_defvlan defvlan;
struct bnx2x_vfop_args_qx qx;
struct bnx2x_vfop_args_filters filters;
};
struct bnx2x_vfop {
struct list_head link;
int rc; /* return code */
int state; /* next state */
union bnx2x_vfop_args args; /* extra arguments */
union bnx2x_vfop_params *op_p; /* ramrod params */
/* state machine callbacks */
vfop_handler_t transition;
vfop_handler_t done;
};
/* vf context */
struct bnx2x_virtf {
u16 cfg_flags;
#define VF_CFG_STATS 0x0001
#define VF_CFG_FW_FC 0x0002
#define VF_CFG_TPA 0x0004
#define VF_CFG_INT_SIMD 0x0008
#define VF_CACHE_LINE 0x0010
u8 state;
#define VF_FREE 0 /* VF ready to be acquired holds no resc */
#define VF_ACQUIRED 1 /* VF aquired, but not initalized */
#define VF_ENABLED 2 /* VF Enabled */
#define VF_RESET 3 /* VF FLR'd, pending cleanup */
/* non 0 during flr cleanup */
u8 flr_clnup_stage;
#define VF_FLR_CLN 1 /* reclaim resources and do 'final cleanup'
* sans the end-wait
*/
#define VF_FLR_ACK 2 /* ACK flr notification */
#define VF_FLR_EPILOG 3 /* wait for VF remnants to dissipate in the HW
* ~ final cleanup' end wait
*/
/* dma */
dma_addr_t fw_stat_map; /* valid iff VF_CFG_STATS */
dma_addr_t spq_map;
dma_addr_t bulletin_map;
/* Allocated resources counters. Before the VF is acquired, the
* counters hold the following values:
*
* - xxq_count = 0 as the queues memory is not allocated yet.
*
* - sb_count = The number of status blocks configured for this VF in
* the IGU CAM. Initially read during probe.
*
* - xx_rules_count = The number of rules statically and equally
* allocated for each VF, during PF load.
*/
struct vf_pf_resc_request alloc_resc;
#define vf_rxq_count(vf) ((vf)->alloc_resc.num_rxqs)
#define vf_txq_count(vf) ((vf)->alloc_resc.num_txqs)
#define vf_sb_count(vf) ((vf)->alloc_resc.num_sbs)
#define vf_mac_rules_cnt(vf) ((vf)->alloc_resc.num_mac_filters)
#define vf_vlan_rules_cnt(vf) ((vf)->alloc_resc.num_vlan_filters)
#define vf_mc_rules_cnt(vf) ((vf)->alloc_resc.num_mc_filters)
u8 sb_count; /* actual number of SBs */
u8 igu_base_id; /* base igu status block id */
struct bnx2x_vf_queue *vfqs;
#define bnx2x_vfq(vf, nr, var) ((vf)->vfqs[(nr)].var)
u8 index; /* index in the vf array */
u8 abs_vfid;
u8 sp_cl_id;
u32 error; /* 0 means all's-well */
/* BDF */
unsigned int bus;
unsigned int devfn;
/* bars */
struct bnx2x_vf_bar bars[PCI_SRIOV_NUM_BARS];
/* set-mac ramrod state 1-pending, 0-done */
unsigned long filter_state;
/* leading rss client id ~~ the client id of the first rxq, must be
* set for each txq.
*/
int leading_rss;
/* MCAST object */
struct bnx2x_mcast_obj mcast_obj;
/* RSS configuration object */
struct bnx2x_rss_config_obj rss_conf_obj;
/* slow-path operations */
atomic_t op_in_progress;
int op_rc;
bool op_wait_blocking;
struct list_head op_list_head;
union bnx2x_vfop_params op_params;
struct mutex op_mutex; /* one vfop at a time mutex */
enum channel_tlvs op_current;
};
#define BNX2X_NR_VIRTFN(bp) ((bp)->vfdb->sriov.nr_virtfn)
#define for_each_vf(bp, var) \
for ((var) = 0; (var) < BNX2X_NR_VIRTFN(bp); (var)++)
#define for_each_vfq(vf, var) \
for ((var) = 0; (var) < vf_rxq_count(vf); (var)++)
#define for_each_vf_sb(vf, var) \
for ((var) = 0; (var) < vf_sb_count(vf); (var)++)
#define is_vf_multi(vf) (vf_rxq_count(vf) > 1)
#define HW_VF_HANDLE(bp, abs_vfid) \
(u16)(BP_ABS_FUNC((bp)) | (1<<3) | ((u16)(abs_vfid) << 4))
#define FW_PF_MAX_HANDLE 8
#define FW_VF_HANDLE(abs_vfid) \
(abs_vfid + FW_PF_MAX_HANDLE)
/* locking and unlocking the channel mutex */
void bnx2x_lock_vf_pf_channel(struct bnx2x *bp, struct bnx2x_virtf *vf,
enum channel_tlvs tlv);
void bnx2x_unlock_vf_pf_channel(struct bnx2x *bp, struct bnx2x_virtf *vf,
enum channel_tlvs expected_tlv);
/* VF mail box (aka vf-pf channel) */
/* a container for the bi-directional vf<-->pf messages.
* The actual response will be placed according to the offset parameter
* provided in the request
*/
#define MBX_MSG_ALIGN 8
#define MBX_MSG_ALIGNED_SIZE (roundup(sizeof(struct bnx2x_vf_mbx_msg), \
MBX_MSG_ALIGN))
struct bnx2x_vf_mbx_msg {
union vfpf_tlvs req;
union pfvf_tlvs resp;
};
struct bnx2x_vf_mbx {
struct bnx2x_vf_mbx_msg *msg;
dma_addr_t msg_mapping;
/* VF GPA address */
u32 vf_addr_lo;
u32 vf_addr_hi;
struct vfpf_first_tlv first_tlv; /* saved VF request header */
u8 flags;
#define VF_MSG_INPROCESS 0x1 /* failsafe - the FW should prevent
* more then one pending msg
*/
};
struct bnx2x_vf_sp {
union {
struct eth_classify_rules_ramrod_data e2;
} mac_rdata;
union {
struct eth_classify_rules_ramrod_data e2;
} vlan_rdata;
union {
struct eth_filter_rules_ramrod_data e2;
} rx_mode_rdata;
union {
struct eth_multicast_rules_ramrod_data e2;
} mcast_rdata;
union {
struct client_init_ramrod_data init_data;
struct client_update_ramrod_data update_data;
} q_data;
};
struct hw_dma {
void *addr;
dma_addr_t mapping;
size_t size;
};
struct bnx2x_vfdb {
#define BP_VFDB(bp) ((bp)->vfdb)
/* vf array */
struct bnx2x_virtf *vfs;
#define BP_VF(bp, idx) (&((bp)->vfdb->vfs[(idx)]))
#define bnx2x_vf(bp, idx, var) ((bp)->vfdb->vfs[(idx)].var)
/* queue array - for all vfs */
struct bnx2x_vf_queue *vfqs;
/* vf HW contexts */
struct hw_dma context[BNX2X_VF_CIDS/ILT_PAGE_CIDS];
#define BP_VF_CXT_PAGE(bp, i) (&(bp)->vfdb->context[(i)])
/* SR-IOV information */
struct bnx2x_sriov sriov;
struct hw_dma mbx_dma;
#define BP_VF_MBX_DMA(bp) (&((bp)->vfdb->mbx_dma))
struct bnx2x_vf_mbx mbxs[BNX2X_MAX_NUM_OF_VFS];
#define BP_VF_MBX(bp, vfid) (&((bp)->vfdb->mbxs[(vfid)]))
struct hw_dma sp_dma;
#define bnx2x_vf_sp(bp, vf, field) ((bp)->vfdb->sp_dma.addr + \
(vf)->index * sizeof(struct bnx2x_vf_sp) + \
offsetof(struct bnx2x_vf_sp, field))
#define bnx2x_vf_sp_map(bp, vf, field) ((bp)->vfdb->sp_dma.mapping + \
(vf)->index * sizeof(struct bnx2x_vf_sp) + \
offsetof(struct bnx2x_vf_sp, field))
#define FLRD_VFS_DWORDS (BNX2X_MAX_NUM_OF_VFS / 32)
u32 flrd_vfs[FLRD_VFS_DWORDS];
};
/* queue access */
static inline struct bnx2x_vf_queue *vfq_get(struct bnx2x_virtf *vf, u8 index)
{
return &(vf->vfqs[index]);
}
static inline bool vfq_is_leading(struct bnx2x_vf_queue *vfq)
{
return (vfq->index == 0);
}
/* FW ids */
static inline u8 vf_igu_sb(struct bnx2x_virtf *vf, u16 sb_idx)
{
return vf->igu_base_id + sb_idx;
}
static inline u8 vf_hc_qzone(struct bnx2x_virtf *vf, u16 sb_idx)
{
return vf_igu_sb(vf, sb_idx);
}
static u8 vfq_cl_id(struct bnx2x_virtf *vf, struct bnx2x_vf_queue *q)
{
return vf->igu_base_id + q->index;
}
static inline u8 vfq_qzone_id(struct bnx2x_virtf *vf, struct bnx2x_vf_queue *q)
{
return vfq_cl_id(vf, q);
}
/* global iov routines */
int bnx2x_iov_init_ilt(struct bnx2x *bp, u16 line);
int bnx2x_iov_init_one(struct bnx2x *bp, int int_mode_param, int num_vfs_param);
void bnx2x_iov_remove_one(struct bnx2x *bp);
void bnx2x_iov_free_mem(struct bnx2x *bp);
int bnx2x_iov_alloc_mem(struct bnx2x *bp);
int bnx2x_iov_nic_init(struct bnx2x *bp);
void bnx2x_iov_init_dq(struct bnx2x *bp);
void bnx2x_iov_init_dmae(struct bnx2x *bp);
void bnx2x_iov_set_queue_sp_obj(struct bnx2x *bp, int vf_cid,
struct bnx2x_queue_sp_obj **q_obj);
void bnx2x_iov_sp_event(struct bnx2x *bp, int vf_cid, bool queue_work);
int bnx2x_iov_eq_sp_event(struct bnx2x *bp, union event_ring_elem *elem);
void bnx2x_iov_adjust_stats_req(struct bnx2x *bp);
void bnx2x_iov_storm_stats_update(struct bnx2x *bp);
void bnx2x_iov_sp_task(struct bnx2x *bp);
/* global vf mailbox routines */
void bnx2x_vf_mbx(struct bnx2x *bp, struct vf_pf_event_data *vfpf_event);
void bnx2x_vf_enable_mbx(struct bnx2x *bp, u8 abs_vfid);
/* acquire */
int bnx2x_vf_acquire(struct bnx2x *bp, struct bnx2x_virtf *vf,
struct vf_pf_resc_request *resc);
/* init */
int bnx2x_vf_init(struct bnx2x *bp, struct bnx2x_virtf *vf,
dma_addr_t *sb_map);
static inline struct bnx2x_vfop *bnx2x_vfop_cur(struct bnx2x *bp,
struct bnx2x_virtf *vf)
{
WARN(!mutex_is_locked(&vf->op_mutex), "about to access vf op linked list but mutex was not locked!");
WARN_ON(list_empty(&vf->op_list_head));
return list_first_entry(&vf->op_list_head, struct bnx2x_vfop, link);
}
int bnx2x_vf_idx_by_abs_fid(struct bnx2x *bp, u16 abs_vfid);
u8 bnx2x_vf_max_queue_cnt(struct bnx2x *bp, struct bnx2x_virtf *vf);
/* VF FLR helpers */
int bnx2x_vf_flr_clnup_epilog(struct bnx2x *bp, u8 abs_vfid);
void bnx2x_vf_enable_access(struct bnx2x *bp, u8 abs_vfid);
void bnx2x_add_tlv(struct bnx2x *bp, void *tlvs_list, u16 offset, u16 type,
u16 length);
void bnx2x_vfpf_prep(struct bnx2x *bp, struct vfpf_first_tlv *first_tlv,
u16 type, u16 length);
void bnx2x_dp_tlv_list(struct bnx2x *bp, void *tlvs_list);
bool bnx2x_tlv_supported(u16 tlvtype);
#endif /* bnx2x_sriov.h */
