173 lines
4.4 KiB
C
173 lines
4.4 KiB
C
|
/* SPDX-License-Identifier: GPL-2.0 */
|
||
|
|
/* Copyright (c) Meta Platforms, Inc. and affiliates. */
|
||
|
|
|
||
|
|
#ifndef _FBNIC_H_
|
||
|
|
#define _FBNIC_H_
|
||
|
|
|
||
|
|
#include <linux/interrupt.h>
|
||
|
|
#include <linux/io.h>
|
||
|
|
#include <linux/ptp_clock_kernel.h>
|
||
|
|
#include <linux/types.h>
|
||
|
|
#include <linux/workqueue.h>
|
||
|
|
|
||
|
|
#include "fbnic_csr.h"
|
||
|
|
#include "fbnic_fw.h"
|
||
|
|
#include "fbnic_hw_stats.h"
|
||
|
|
#include "fbnic_mac.h"
|
||
|
|
#include "fbnic_rpc.h"
|
||
|
|
|
||
|
|
struct fbnic_dev {
|
||
|
|
struct device *dev;
|
||
|
|
struct net_device *netdev;
|
||
|
|
struct dentry *dbg_fbd;
|
||
|
|
|
||
|
|
u32 __iomem *uc_addr0;
|
||
|
|
u32 __iomem *uc_addr4;
|
||
|
|
const struct fbnic_mac *mac;
|
||
|
|
unsigned int fw_msix_vector;
|
||
|
|
unsigned int pcs_msix_vector;
|
||
|
|
unsigned short num_irqs;
|
||
|
|
|
||
|
|
struct delayed_work service_task;
|
||
|
|
|
||
|
|
struct fbnic_fw_mbx mbx[FBNIC_IPC_MBX_INDICES];
|
||
|
|
struct fbnic_fw_cap fw_cap;
|
||
|
|
/* Lock protecting Tx Mailbox queue to prevent possible races */
|
||
|
|
spinlock_t fw_tx_lock;
|
||
|
|
|
||
|
|
unsigned long last_heartbeat_request;
|
||
|
|
unsigned long last_heartbeat_response;
|
||
|
|
u8 fw_heartbeat_enabled;
|
||
|
|
|
||
|
|
u64 dsn;
|
||
|
|
u32 mps;
|
||
|
|
u32 readrq;
|
||
|
|
|
||
|
|
/* Local copy of the devices TCAM */
|
||
|
|
struct fbnic_act_tcam act_tcam[FBNIC_RPC_TCAM_ACT_NUM_ENTRIES];
|
||
|
|
struct fbnic_mac_addr mac_addr[FBNIC_RPC_TCAM_MACDA_NUM_ENTRIES];
|
||
|
|
u8 mac_addr_boundary;
|
||
|
|
u8 tce_tcam_last;
|
||
|
|
|
||
|
|
/* Number of TCQs/RCQs available on hardware */
|
||
|
|
u16 max_num_queues;
|
||
|
|
|
||
|
|
/* Lock protecting writes to @time_high, @time_offset of fbnic_netdev,
|
||
|
|
* and the HW time CSR machinery.
|
||
|
|
*/
|
||
|
|
spinlock_t time_lock;
|
||
|
|
/* Externally accessible PTP clock, may be NULL */
|
||
|
|
struct ptp_clock *ptp;
|
||
|
|
struct ptp_clock_info ptp_info;
|
||
|
|
/* Last @time_high refresh time in jiffies (to catch stalls) */
|
||
|
|
unsigned long last_read;
|
||
|
|
|
||
|
|
/* Local copy of hardware statistics */
|
||
|
|
struct fbnic_hw_stats hw_stats;
|
||
|
|
};
|
||
|
|
|
||
|
|
/* Reserve entry 0 in the MSI-X "others" array until we have filled all
|
||
|
|
* 32 of the possible interrupt slots. By doing this we can avoid any
|
||
|
|
* potential conflicts should we need to enable one of the debug interrupt
|
||
|
|
* causes later.
|
||
|
|
*/
|
||
|
|
enum {
|
||
|
|
FBNIC_FW_MSIX_ENTRY,
|
||
|
|
FBNIC_PCS_MSIX_ENTRY,
|
||
|
|
FBNIC_NON_NAPI_VECTORS
|
||
|
|
};
|
||
|
|
|
||
|
|
static inline bool fbnic_present(struct fbnic_dev *fbd)
|
||
|
|
{
|
||
|
|
return !!READ_ONCE(fbd->uc_addr0);
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline void fbnic_wr32(struct fbnic_dev *fbd, u32 reg, u32 val)
|
||
|
|
{
|
||
|
|
u32 __iomem *csr = READ_ONCE(fbd->uc_addr0);
|
||
|
|
|
||
|
|
if (csr)
|
||
|
|
writel(val, csr + reg);
|
||
|
|
}
|
||
|
|
|
||
|
|
u32 fbnic_rd32(struct fbnic_dev *fbd, u32 reg);
|
||
|
|
|
||
|
|
static inline void fbnic_wrfl(struct fbnic_dev *fbd)
|
||
|
|
{
|
||
|
|
fbnic_rd32(fbd, FBNIC_MASTER_SPARE_0);
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline void
|
||
|
|
fbnic_rmw32(struct fbnic_dev *fbd, u32 reg, u32 mask, u32 val)
|
||
|
|
{
|
||
|
|
u32 v;
|
||
|
|
|
||
|
|
v = fbnic_rd32(fbd, reg);
|
||
|
|
v &= ~mask;
|
||
|
|
v |= val;
|
||
|
|
fbnic_wr32(fbd, reg, v);
|
||
|
|
}
|
||
|
|
|
||
|
|
#define wr32(_f, _r, _v) fbnic_wr32(_f, _r, _v)
|
||
|
|
#define rd32(_f, _r) fbnic_rd32(_f, _r)
|
||
|
|
#define wrfl(_f) fbnic_wrfl(_f)
|
||
|
|
|
||
|
|
bool fbnic_fw_present(struct fbnic_dev *fbd);
|
||
|
|
u32 fbnic_fw_rd32(struct fbnic_dev *fbd, u32 reg);
|
||
|
|
void fbnic_fw_wr32(struct fbnic_dev *fbd, u32 reg, u32 val);
|
||
|
|
|
||
|
|
#define fw_rd32(_f, _r) fbnic_fw_rd32(_f, _r)
|
||
|
|
#define fw_wr32(_f, _r, _v) fbnic_fw_wr32(_f, _r, _v)
|
||
|
|
#define fw_wrfl(_f) fbnic_fw_rd32(_f, FBNIC_FW_ZERO_REG)
|
||
|
|
|
||
|
|
static inline bool fbnic_bmc_present(struct fbnic_dev *fbd)
|
||
|
|
{
|
||
|
|
return fbd->fw_cap.bmc_present;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline bool fbnic_init_failure(struct fbnic_dev *fbd)
|
||
|
|
{
|
||
|
|
return !fbd->netdev;
|
||
|
|
}
|
||
|
|
|
||
|
|
extern char fbnic_driver_name[];
|
||
|
|
|
||
|
|
void fbnic_devlink_free(struct fbnic_dev *fbd);
|
||
|
|
struct fbnic_dev *fbnic_devlink_alloc(struct pci_dev *pdev);
|
||
|
|
void fbnic_devlink_register(struct fbnic_dev *fbd);
|
||
|
|
void fbnic_devlink_unregister(struct fbnic_dev *fbd);
|
||
|
|
|
||
|
|
int fbnic_fw_enable_mbx(struct fbnic_dev *fbd);
|
||
|
|
void fbnic_fw_disable_mbx(struct fbnic_dev *fbd);
|
||
|
|
|
||
|
|
int fbnic_pcs_irq_enable(struct fbnic_dev *fbd);
|
||
|
|
void fbnic_pcs_irq_disable(struct fbnic_dev *fbd);
|
||
|
|
|
||
|
|
int fbnic_request_irq(struct fbnic_dev *dev, int nr, irq_handler_t handler,
|
||
|
|
unsigned long flags, const char *name, void *data);
|
||
|
|
void fbnic_free_irq(struct fbnic_dev *dev, int nr, void *data);
|
||
|
|
void fbnic_free_irqs(struct fbnic_dev *fbd);
|
||
|
|
int fbnic_alloc_irqs(struct fbnic_dev *fbd);
|
||
|
|
|
||
|
|
void fbnic_get_fw_ver_commit_str(struct fbnic_dev *fbd, char *fw_version,
|
||
|
|
const size_t str_sz);
|
||
|
|
|
||
|
|
void fbnic_dbg_fbd_init(struct fbnic_dev *fbd);
|
||
|
|
void fbnic_dbg_fbd_exit(struct fbnic_dev *fbd);
|
||
|
|
void fbnic_dbg_init(void);
|
||
|
|
void fbnic_dbg_exit(void);
|
||
|
|
|
||
|
|
void fbnic_csr_get_regs(struct fbnic_dev *fbd, u32 *data, u32 *regs_version);
|
||
|
|
int fbnic_csr_regs_len(struct fbnic_dev *fbd);
|
||
|
|
|
||
|
|
enum fbnic_boards {
|
||
|
|
fbnic_board_asic
|
||
|
|
};
|
||
|
|
|
||
|
|
struct fbnic_info {
|
||
|
|
unsigned int max_num_queues;
|
||
|
|
unsigned int bar_mask;
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif /* _FBNIC_H_ */
|