diff options
Diffstat (limited to 'include/linux/bnxt/ulp.h')
| -rw-r--r-- | include/linux/bnxt/ulp.h | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/include/linux/bnxt/ulp.h b/include/linux/bnxt/ulp.h new file mode 100644 index 000000000000..0851ad3394b0 --- /dev/null +++ b/include/linux/bnxt/ulp.h @@ -0,0 +1,144 @@ +/* Broadcom NetXtreme-C/E network driver. + * + * Copyright (c) 2016-2018 Broadcom Limited + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation. + */ + +#ifndef BNXT_ULP_H +#define BNXT_ULP_H + +#include <linux/auxiliary_bus.h> + +#define BNXT_MIN_ROCE_CP_RINGS 2 +#define BNXT_MIN_ROCE_STAT_CTXS 1 + +#define BNXT_MAX_ROCE_MSIX_VF 2 +#define BNXT_MAX_ROCE_MSIX_NPAR_PF 5 +#define BNXT_MAX_ROCE_MSIX 64 + +struct hwrm_async_event_cmpl; +struct bnxt; + +enum bnxt_auxdev_type { + BNXT_AUXDEV_RDMA = 0, + BNXT_AUXDEV_FWCTL, + __BNXT_AUXDEV_MAX +}; + +struct bnxt_aux_priv { + struct auxiliary_device aux_dev; + struct bnxt_en_dev *edev; + int id; +}; + +struct bnxt_msix_entry { + u32 vector; + u32 ring_idx; + u32 db_offset; +}; + +struct bnxt_ulp_ops { + /* async_notifier() cannot sleep (in BH context) */ + void (*ulp_async_notifier)(void *, struct hwrm_async_event_cmpl *); + void (*ulp_irq_stop)(void *, bool); + void (*ulp_irq_restart)(void *, struct bnxt_msix_entry *); +}; + +struct bnxt_fw_msg { + void *msg; + int msg_len; + void *resp; + int resp_max_len; + int timeout; +}; + +struct bnxt_ulp { + void *handle; + struct bnxt_ulp_ops __rcu *ulp_ops; + unsigned long *async_events_bmap; + u16 max_async_event_id; + u16 msix_requested; +}; + +struct bnxt_en_dev { + struct net_device *net; + struct pci_dev *pdev; + struct bnxt_msix_entry msix_entries[BNXT_MAX_ROCE_MSIX]; + u32 flags; + #define BNXT_EN_FLAG_ROCEV1_CAP 0x1 + #define BNXT_EN_FLAG_ROCEV2_CAP 0x2 + #define BNXT_EN_FLAG_ROCE_CAP (BNXT_EN_FLAG_ROCEV1_CAP | \ + BNXT_EN_FLAG_ROCEV2_CAP) + #define BNXT_EN_FLAG_ULP_STOPPED 0x8 + #define BNXT_EN_FLAG_VF 0x10 +#define BNXT_EN_VF(edev) ((edev)->flags & BNXT_EN_FLAG_VF) + #define BNXT_EN_FLAG_ROCE_VF_RES_MGMT 0x20 + #define BNXT_EN_FLAG_SW_RES_LMT 0x40 +#define BNXT_EN_SW_RES_LMT(edev) ((edev)->flags & BNXT_EN_FLAG_SW_RES_LMT) + + struct bnxt_ulp *ulp_tbl; + int l2_db_size; /* Doorbell BAR size in + * bytes mapped by L2 + * driver. + */ + int l2_db_size_nc; /* Doorbell BAR size in + * bytes mapped as non- + * cacheable. + */ + int l2_db_offset; /* Doorbell offset in + * bytes within + * l2_db_size_nc. + */ + u16 chip_num; + u16 hw_ring_stats_size; + u16 pf_port_id; + unsigned long en_state; /* Could be checked in + * RoCE driver suspend + * mode only. Will be + * updated in resume. + */ + void __iomem *bar0; + + u16 ulp_num_msix_vec; + u16 ulp_num_ctxs; + + /* serialize ulp operations */ + struct mutex en_dev_lock; +}; + +static inline bool bnxt_ulp_registered(struct bnxt_en_dev *edev) +{ + if (edev && rcu_access_pointer(edev->ulp_tbl->ulp_ops)) + return true; + return false; +} + +int bnxt_get_ulp_msix_num(struct bnxt *bp); +int bnxt_get_ulp_msix_num_in_use(struct bnxt *bp); +void bnxt_set_ulp_msix_num(struct bnxt *bp, int num); +int bnxt_get_ulp_stat_ctxs(struct bnxt *bp); +void bnxt_set_ulp_stat_ctxs(struct bnxt *bp, int num_ctxs); +int bnxt_get_ulp_stat_ctxs_in_use(struct bnxt *bp); +void bnxt_set_dflt_ulp_stat_ctxs(struct bnxt *bp); +void bnxt_ulp_stop(struct bnxt *bp); +void bnxt_ulp_start(struct bnxt *bp); +void bnxt_ulp_sriov_cfg(struct bnxt *bp, int num_vfs); +void bnxt_ulp_irq_stop(struct bnxt *bp); +void bnxt_ulp_irq_restart(struct bnxt *bp, int err); +void bnxt_ulp_async_events(struct bnxt *bp, struct hwrm_async_event_cmpl *cmpl); +void bnxt_aux_devices_uninit(struct bnxt *bp); +void bnxt_aux_devices_del(struct bnxt *bp); +void bnxt_aux_devices_add(struct bnxt *bp); +void bnxt_aux_devices_init(struct bnxt *bp); +int bnxt_register_dev(struct bnxt_en_dev *edev, struct bnxt_ulp_ops *ulp_ops, + void *handle); +void bnxt_unregister_dev(struct bnxt_en_dev *edev); +int bnxt_send_msg(struct bnxt_en_dev *edev, struct bnxt_fw_msg *fw_msg); +void bnxt_register_async_events(struct bnxt_en_dev *edev, + unsigned long *events_bmap, u16 max_id); +int bnxt_auxdev_id_alloc(struct bnxt *bp); +void bnxt_auxdev_id_free(struct bnxt *bp, int id); +#endif |