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googlers / maze / linux / afcf0a2d9289bbe50aab362e6fb2798038815973 / . / drivers / net / ethernet / broadcom / bnx2x / bnx2x_cmn.h
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/* bnx2x_cmn.h: Broadcom Everest network driver.
*
* Copyright (c) 2007-2013 Broadcom Corporation
*
* 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.
*
* Maintained by: Eilon Greenstein <eilong@broadcom.com>
* Written by: Eliezer Tamir
* Based on code from Michael Chan's bnx2 driver
* UDP CSUM errata workaround by Arik Gendelman
* Slowpath and fastpath rework by Vladislav Zolotarov
* Statistics and Link management by Yitchak Gertner
*
*/
#ifndef BNX2X_CMN_H
#define BNX2X_CMN_H
#include <linux/types.h>
#include <linux/pci.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/irq.h>
#include "bnx2x.h"
#include "bnx2x_sriov.h"
/* This is used as a replacement for an MCP if it's not present */
extern int bnx2x_load_count[2][3]; /* per-path: 0-common, 1-port0, 2-port1 */
extern int bnx2x_num_queues;
/************************ Macros ********************************/
#define BNX2X_PCI_FREE(x, y, size) \
do { \
if (x) { \
dma_free_coherent(&bp->pdev->dev, size, (void *)x, y); \
x = NULL; \
y = 0; \
} \
} while (0)
#define BNX2X_FREE(x) \
do { \
if (x) { \
kfree((void *)x); \
x = NULL; \
} \
} while (0)
#define BNX2X_PCI_ALLOC(y, size) \
({ \
void *x = dma_zalloc_coherent(&bp->pdev->dev, size, y, GFP_KERNEL); \
if (x) \
DP(NETIF_MSG_HW, \
"BNX2X_PCI_ALLOC: Physical %Lx Virtual %p\n", \
(unsigned long long)(*y), x); \
x; \
})
#define BNX2X_PCI_FALLOC(y, size) \
({ \
void *x = dma_alloc_coherent(&bp->pdev->dev, size, y, GFP_KERNEL); \
if (x) { \
memset(x, 0xff, size); \
DP(NETIF_MSG_HW, \
"BNX2X_PCI_FALLOC: Physical %Lx Virtual %p\n", \
(unsigned long long)(*y), x); \
} \
x; \
})
/*********************** Interfaces ****************************
* Functions that need to be implemented by each driver version
*/
/* Init */
/**
* bnx2x_send_unload_req - request unload mode from the MCP.
*
* @bp: driver handle
* @unload_mode: requested function's unload mode
*
* Return unload mode returned by the MCP: COMMON, PORT or FUNC.
*/
u32 bnx2x_send_unload_req(struct bnx2x *bp, int unload_mode);
/**
* bnx2x_send_unload_done - send UNLOAD_DONE command to the MCP.
*
* @bp: driver handle
* @keep_link: true iff link should be kept up
*/
void bnx2x_send_unload_done(struct bnx2x *bp, bool keep_link);
/**
* bnx2x_config_rss_pf - configure RSS parameters in a PF.
*
* @bp: driver handle
* @rss_obj: RSS object to use
* @ind_table: indirection table to configure
* @config_hash: re-configure RSS hash keys configuration
* @enable: enabled or disabled configuration
*/
int bnx2x_rss(struct bnx2x *bp, struct bnx2x_rss_config_obj *rss_obj,
bool config_hash, bool enable);
/**
* bnx2x__init_func_obj - init function object
*
* @bp: driver handle
*
* Initializes the Function Object with the appropriate
* parameters which include a function slow path driver
* interface.
*/
void bnx2x__init_func_obj(struct bnx2x *bp);
/**
* bnx2x_setup_queue - setup eth queue.
*
* @bp: driver handle
* @fp: pointer to the fastpath structure
* @leading: boolean
*
*/
int bnx2x_setup_queue(struct bnx2x *bp, struct bnx2x_fastpath *fp,
bool leading);
/**
* bnx2x_setup_leading - bring up a leading eth queue.
*
* @bp: driver handle
*/
int bnx2x_setup_leading(struct bnx2x *bp);
/**
* bnx2x_fw_command - send the MCP a request
*
* @bp: driver handle
* @command: request
* @param: request's parameter
*
* block until there is a reply
*/
u32 bnx2x_fw_command(struct bnx2x *bp, u32 command, u32 param);
/**
* bnx2x_initial_phy_init - initialize link parameters structure variables.
*
* @bp: driver handle
* @load_mode: current mode
*/
int bnx2x_initial_phy_init(struct bnx2x *bp, int load_mode);
/**
* bnx2x_link_set - configure hw according to link parameters structure.
*
* @bp: driver handle
*/
void bnx2x_link_set(struct bnx2x *bp);
/**
* bnx2x_force_link_reset - Forces link reset, and put the PHY
* in reset as well.
*
* @bp: driver handle
*/
void bnx2x_force_link_reset(struct bnx2x *bp);
/**
* bnx2x_link_test - query link status.
*
* @bp: driver handle
* @is_serdes: bool
*
* Returns 0 if link is UP.
*/
u8 bnx2x_link_test(struct bnx2x *bp, u8 is_serdes);
/**
* bnx2x_drv_pulse - write driver pulse to shmem
*
* @bp: driver handle
*
* writes the value in bp->fw_drv_pulse_wr_seq to drv_pulse mbox
* in the shmem.
*/
void bnx2x_drv_pulse(struct bnx2x *bp);
/**
* bnx2x_igu_ack_sb - update IGU with current SB value
*
* @bp: driver handle
* @igu_sb_id: SB id
* @segment: SB segment
* @index: SB index
* @op: SB operation
* @update: is HW update required
*/
void bnx2x_igu_ack_sb(struct bnx2x *bp, u8 igu_sb_id, u8 segment,
u16 index, u8 op, u8 update);
/* Disable transactions from chip to host */
void bnx2x_pf_disable(struct bnx2x *bp);
int bnx2x_pretend_func(struct bnx2x *bp, u16 pretend_func_val);
/**
* bnx2x__link_status_update - handles link status change.
*
* @bp: driver handle
*/
void bnx2x__link_status_update(struct bnx2x *bp);
/**
* bnx2x_link_report - report link status to upper layer.
*
* @bp: driver handle
*/
void bnx2x_link_report(struct bnx2x *bp);
/* None-atomic version of bnx2x_link_report() */
void __bnx2x_link_report(struct bnx2x *bp);
/**
* bnx2x_get_mf_speed - calculate MF speed.
*
* @bp: driver handle
*
* Takes into account current linespeed and MF configuration.
*/
u16 bnx2x_get_mf_speed(struct bnx2x *bp);
/**
* bnx2x_msix_sp_int - MSI-X slowpath interrupt handler
*
* @irq: irq number
* @dev_instance: private instance
*/
irqreturn_t bnx2x_msix_sp_int(int irq, void *dev_instance);
/**
* bnx2x_interrupt - non MSI-X interrupt handler
*
* @irq: irq number
* @dev_instance: private instance
*/
irqreturn_t bnx2x_interrupt(int irq, void *dev_instance);
/**
* bnx2x_cnic_notify - send command to cnic driver
*
* @bp: driver handle
* @cmd: command
*/
int bnx2x_cnic_notify(struct bnx2x *bp, int cmd);
/**
* bnx2x_setup_cnic_irq_info - provides cnic with IRQ information
*
* @bp: driver handle
*/
void bnx2x_setup_cnic_irq_info(struct bnx2x *bp);
/**
* bnx2x_setup_cnic_info - provides cnic with updated info
*
* @bp: driver handle
*/
void bnx2x_setup_cnic_info(struct bnx2x *bp);
/**
* bnx2x_int_enable - enable HW interrupts.
*
* @bp: driver handle
*/
void bnx2x_int_enable(struct bnx2x *bp);
/**
* bnx2x_int_disable_sync - disable interrupts.
*
* @bp: driver handle
* @disable_hw: true, disable HW interrupts.
*
* This function ensures that there are no
* ISRs or SP DPCs (sp_task) are running after it returns.
*/
void bnx2x_int_disable_sync(struct bnx2x *bp, int disable_hw);
/**
* bnx2x_nic_init_cnic - init driver internals for cnic.
*
* @bp: driver handle
* @load_code: COMMON, PORT or FUNCTION
*
* Initializes:
* - rings
* - status blocks
* - etc.
*/
void bnx2x_nic_init_cnic(struct bnx2x *bp);
/**
* bnx2x_preirq_nic_init - init driver internals.
*
* @bp: driver handle
*
* Initializes:
* - fastpath object
* - fastpath rings
* etc.
*/
void bnx2x_pre_irq_nic_init(struct bnx2x *bp);
/**
* bnx2x_postirq_nic_init - init driver internals.
*
* @bp: driver handle
* @load_code: COMMON, PORT or FUNCTION
*
* Initializes:
* - status blocks
* - slowpath rings
* - etc.
*/
void bnx2x_post_irq_nic_init(struct bnx2x *bp, u32 load_code);
/**
* bnx2x_alloc_mem_cnic - allocate driver's memory for cnic.
*
* @bp: driver handle
*/
int bnx2x_alloc_mem_cnic(struct bnx2x *bp);
/**
* bnx2x_alloc_mem - allocate driver's memory.
*
* @bp: driver handle
*/
int bnx2x_alloc_mem(struct bnx2x *bp);
/**
* bnx2x_free_mem_cnic - release driver's memory for cnic.
*
* @bp: driver handle
*/
void bnx2x_free_mem_cnic(struct bnx2x *bp);
/**
* bnx2x_free_mem - release driver's memory.
*
* @bp: driver handle
*/
void bnx2x_free_mem(struct bnx2x *bp);
/**
* bnx2x_set_num_queues - set number of queues according to mode.
*
* @bp: driver handle
*/
void bnx2x_set_num_queues(struct bnx2x *bp);
/**
* bnx2x_chip_cleanup - cleanup chip internals.
*
* @bp: driver handle
* @unload_mode: COMMON, PORT, FUNCTION
* @keep_link: true iff link should be kept up.
*
* - Cleanup MAC configuration.
* - Closes clients.
* - etc.
*/
void bnx2x_chip_cleanup(struct bnx2x *bp, int unload_mode, bool keep_link);
/**
* bnx2x_acquire_hw_lock - acquire HW lock.
*
* @bp: driver handle
* @resource: resource bit which was locked
*/
int bnx2x_acquire_hw_lock(struct bnx2x *bp, u32 resource);
/**
* bnx2x_release_hw_lock - release HW lock.
*
* @bp: driver handle
* @resource: resource bit which was locked
*/
int bnx2x_release_hw_lock(struct bnx2x *bp, u32 resource);
/**
* bnx2x_release_leader_lock - release recovery leader lock
*
* @bp: driver handle
*/
int bnx2x_release_leader_lock(struct bnx2x *bp);
/**
* bnx2x_set_eth_mac - configure eth MAC address in the HW
*
* @bp: driver handle
* @set: set or clear
*
* Configures according to the value in netdev->dev_addr.
*/
int bnx2x_set_eth_mac(struct bnx2x *bp, bool set);
/**
* bnx2x_set_rx_mode - set MAC filtering configurations.
*
* @dev: netdevice
*
* called with netif_tx_lock from dev_mcast.c
* If bp->state is OPEN, should be called with
* netif_addr_lock_bh()
*/
void bnx2x_set_rx_mode_inner(struct bnx2x *bp);
/* Parity errors related */
void bnx2x_set_pf_load(struct bnx2x *bp);
bool bnx2x_clear_pf_load(struct bnx2x *bp);
bool bnx2x_chk_parity_attn(struct bnx2x *bp, bool *global, bool print);
bool bnx2x_reset_is_done(struct bnx2x *bp, int engine);
void bnx2x_set_reset_in_progress(struct bnx2x *bp);
void bnx2x_set_reset_global(struct bnx2x *bp);
void bnx2x_disable_close_the_gate(struct bnx2x *bp);
int bnx2x_init_hw_func_cnic(struct bnx2x *bp);
/**
* bnx2x_sp_event - handle ramrods completion.
*
* @fp: fastpath handle for the event
* @rr_cqe: eth_rx_cqe
*/
void bnx2x_sp_event(struct bnx2x_fastpath *fp, union eth_rx_cqe *rr_cqe);
/**
* bnx2x_ilt_set_info - prepare ILT configurations.
*
* @bp: driver handle
*/
void bnx2x_ilt_set_info(struct bnx2x *bp);
/**
* bnx2x_ilt_set_cnic_info - prepare ILT configurations for SRC
* and TM.
*
* @bp: driver handle
*/
void bnx2x_ilt_set_info_cnic(struct bnx2x *bp);
/**
* bnx2x_dcbx_init - initialize dcbx protocol.
*
* @bp: driver handle
*/
void bnx2x_dcbx_init(struct bnx2x *bp, bool update_shmem);
/**
* bnx2x_set_power_state - set power state to the requested value.
*
* @bp: driver handle
* @state: required state D0 or D3hot
*
* Currently only D0 and D3hot are supported.
*/
int bnx2x_set_power_state(struct bnx2x *bp, pci_power_t state);
/**
* bnx2x_update_max_mf_config - update MAX part of MF configuration in HW.
*
* @bp: driver handle
* @value: new value
*/
void bnx2x_update_max_mf_config(struct bnx2x *bp, u32 value);
/* Error handling */
void bnx2x_fw_dump_lvl(struct bnx2x *bp, const char *lvl);
/* dev_close main block */
int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode, bool keep_link);
/* dev_open main block */
int bnx2x_nic_load(struct bnx2x *bp, int load_mode);
/* hard_xmit callback */
netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev);
/* setup_tc callback */
int bnx2x_setup_tc(struct net_device *dev, u8 num_tc);
int bnx2x_get_vf_config(struct net_device *dev, int vf,
struct ifla_vf_info *ivi);
int bnx2x_set_vf_mac(struct net_device *dev, int queue, u8 *mac);
int bnx2x_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, u8 qos);
/* select_queue callback */
u16 bnx2x_select_queue(struct net_device *dev, struct sk_buff *skb,
void *accel_priv, select_queue_fallback_t fallback);
static inline void bnx2x_update_rx_prod(struct bnx2x *bp,
struct bnx2x_fastpath *fp,
u16 bd_prod, u16 rx_comp_prod,
u16 rx_sge_prod)
{
struct ustorm_eth_rx_producers rx_prods = {0};
u32 i;
/* Update producers */
rx_prods.bd_prod = bd_prod;
rx_prods.cqe_prod = rx_comp_prod;
rx_prods.sge_prod = rx_sge_prod;
/* Make sure that the BD and SGE data is updated before updating the
* producers since FW might read the BD/SGE right after the producer
* is updated.
* This is only applicable for weak-ordered memory model archs such
* as IA-64. The following barrier is also mandatory since FW will
* assumes BDs must have buffers.
*/
wmb();
for (i = 0; i < sizeof(rx_prods)/4; i++)
REG_WR(bp, fp->ustorm_rx_prods_offset + i*4,
((u32 *)&rx_prods)[i]);
mmiowb(); /* keep prod updates ordered */
DP(NETIF_MSG_RX_STATUS,
"queue[%d]: wrote bd_prod %u cqe_prod %u sge_prod %u\n",
fp->index, bd_prod, rx_comp_prod, rx_sge_prod);
}
/* reload helper */
int bnx2x_reload_if_running(struct net_device *dev);
int bnx2x_change_mac_addr(struct net_device *dev, void *p);
/* NAPI poll Tx part */
int bnx2x_tx_int(struct bnx2x *bp, struct bnx2x_fp_txdata *txdata);
/* suspend/resume callbacks */
int bnx2x_suspend(struct pci_dev *pdev, pm_message_t state);
int bnx2x_resume(struct pci_dev *pdev);
/* Release IRQ vectors */
void bnx2x_free_irq(struct bnx2x *bp);
void bnx2x_free_fp_mem(struct bnx2x *bp);
void bnx2x_init_rx_rings(struct bnx2x *bp);
void bnx2x_init_rx_rings_cnic(struct bnx2x *bp);
void bnx2x_free_skbs(struct bnx2x *bp);
void bnx2x_netif_stop(struct bnx2x *bp, int disable_hw);
void bnx2x_netif_start(struct bnx2x *bp);
int bnx2x_load_cnic(struct bnx2x *bp);
/**
* bnx2x_enable_msix - set msix configuration.
*
* @bp: driver handle
*
* fills msix_table, requests vectors, updates num_queues
* according to number of available vectors.
*/
int bnx2x_enable_msix(struct bnx2x *bp);
/**
* bnx2x_enable_msi - request msi mode from OS, updated internals accordingly
*
* @bp: driver handle
*/
int bnx2x_enable_msi(struct bnx2x *bp);
/**
* bnx2x_low_latency_recv - LL callback
*
* @napi: napi structure
*/
int bnx2x_low_latency_recv(struct napi_struct *napi);
/**
* bnx2x_alloc_mem_bp - allocate memories outsize main driver structure
*
* @bp: driver handle
*/
int bnx2x_alloc_mem_bp(struct bnx2x *bp);
/**
* bnx2x_free_mem_bp - release memories outsize main driver structure
*
* @bp: driver handle
*/
void bnx2x_free_mem_bp(struct bnx2x *bp);
/**
* bnx2x_change_mtu - change mtu netdev callback
*
* @dev: net device
* @new_mtu: requested mtu
*
*/
int bnx2x_change_mtu(struct net_device *dev, int new_mtu);
#ifdef NETDEV_FCOE_WWNN
/**
* bnx2x_fcoe_get_wwn - return the requested WWN value for this port
*
* @dev: net_device
* @wwn: output buffer
* @type: WWN type: NETDEV_FCOE_WWNN (node) or NETDEV_FCOE_WWPN (port)
*
*/
int bnx2x_fcoe_get_wwn(struct net_device *dev, u64 *wwn, int type);
#endif
netdev_features_t bnx2x_fix_features(struct net_device *dev,
netdev_features_t features);
int bnx2x_set_features(struct net_device *dev, netdev_features_t features);
/**
* bnx2x_tx_timeout - tx timeout netdev callback
*
* @dev: net device
*/
void bnx2x_tx_timeout(struct net_device *dev);
/*********************** Inlines **********************************/
/*********************** Fast path ********************************/
static inline void bnx2x_update_fpsb_idx(struct bnx2x_fastpath *fp)
{
barrier(); /* status block is written to by the chip */
fp->fp_hc_idx = fp->sb_running_index[SM_RX_ID];
}
static inline void bnx2x_igu_ack_sb_gen(struct bnx2x *bp, u8 igu_sb_id,
u8 segment, u16 index, u8 op,
u8 update, u32 igu_addr)
{
struct igu_regular cmd_data = {0};
cmd_data.sb_id_and_flags =
((index << IGU_REGULAR_SB_INDEX_SHIFT) |
(segment << IGU_REGULAR_SEGMENT_ACCESS_SHIFT) |
(update << IGU_REGULAR_BUPDATE_SHIFT) |
(op << IGU_REGULAR_ENABLE_INT_SHIFT));
DP(NETIF_MSG_INTR, "write 0x%08x to IGU addr 0x%x\n",
cmd_data.sb_id_and_flags, igu_addr);
REG_WR(bp, igu_addr, cmd_data.sb_id_and_flags);
/* Make sure that ACK is written */
mmiowb();
barrier();
}
static inline void bnx2x_hc_ack_sb(struct bnx2x *bp, u8 sb_id,
u8 storm, u16 index, u8 op, u8 update)
{
u32 hc_addr = (HC_REG_COMMAND_REG + BP_PORT(bp)*32 +
COMMAND_REG_INT_ACK);
struct igu_ack_register igu_ack;
igu_ack.status_block_index = index;
igu_ack.sb_id_and_flags =
((sb_id << IGU_ACK_REGISTER_STATUS_BLOCK_ID_SHIFT) |
(storm << IGU_ACK_REGISTER_STORM_ID_SHIFT) |
(update << IGU_ACK_REGISTER_UPDATE_INDEX_SHIFT) |
(op << IGU_ACK_REGISTER_INTERRUPT_MODE_SHIFT));
REG_WR(bp, hc_addr, (*(u32 *)&igu_ack));
/* Make sure that ACK is written */
mmiowb();
barrier();
}
static inline void bnx2x_ack_sb(struct bnx2x *bp, u8 igu_sb_id, u8 storm,
u16 index, u8 op, u8 update)
{
if (bp->common.int_block == INT_BLOCK_HC)
bnx2x_hc_ack_sb(bp, igu_sb_id, storm, index, op, update);
else {
u8 segment;
if (CHIP_INT_MODE_IS_BC(bp))
segment = storm;
else if (igu_sb_id != bp->igu_dsb_id)
segment = IGU_SEG_ACCESS_DEF;
else if (storm == ATTENTION_ID)
segment = IGU_SEG_ACCESS_ATTN;
else
segment = IGU_SEG_ACCESS_DEF;
bnx2x_igu_ack_sb(bp, igu_sb_id, segment, index, op, update);
}
}
static inline u16 bnx2x_hc_ack_int(struct bnx2x *bp)
{
u32 hc_addr = (HC_REG_COMMAND_REG + BP_PORT(bp)*32 +
COMMAND_REG_SIMD_MASK);
u32 result = REG_RD(bp, hc_addr);
barrier();
return result;
}
static inline u16 bnx2x_igu_ack_int(struct bnx2x *bp)
{
u32 igu_addr = (BAR_IGU_INTMEM + IGU_REG_SISR_MDPC_WMASK_LSB_UPPER*8);
u32 result = REG_RD(bp, igu_addr);
DP(NETIF_MSG_INTR, "read 0x%08x from IGU addr 0x%x\n",
result, igu_addr);
barrier();
return result;
}
static inline u16 bnx2x_ack_int(struct bnx2x *bp)
{
barrier();
if (bp->common.int_block == INT_BLOCK_HC)
return bnx2x_hc_ack_int(bp);
else
return bnx2x_igu_ack_int(bp);
}
static inline int bnx2x_has_tx_work_unload(struct bnx2x_fp_txdata *txdata)
{
/* Tell compiler that consumer and producer can change */
barrier();
return txdata->tx_pkt_prod != txdata->tx_pkt_cons;
}
static inline u16 bnx2x_tx_avail(struct bnx2x *bp,
struct bnx2x_fp_txdata *txdata)
{
s16 used;
u16 prod;
u16 cons;
prod = txdata->tx_bd_prod;
cons = txdata->tx_bd_cons;
used = SUB_S16(prod, cons);
#ifdef BNX2X_STOP_ON_ERROR
WARN_ON(used < 0);
WARN_ON(used > txdata->tx_ring_size);
WARN_ON((txdata->tx_ring_size - used) > MAX_TX_AVAIL);
#endif
return (s16)(txdata->tx_ring_size) - used;
}
static inline int bnx2x_tx_queue_has_work(struct bnx2x_fp_txdata *txdata)
{
u16 hw_cons;
/* Tell compiler that status block fields can change */
barrier();
hw_cons = le16_to_cpu(*txdata->tx_cons_sb);
return hw_cons != txdata->tx_pkt_cons;
}
static inline bool bnx2x_has_tx_work(struct bnx2x_fastpath *fp)
{
u8 cos;
for_each_cos_in_tx_queue(fp, cos)
if (bnx2x_tx_queue_has_work(fp->txdata_ptr[cos]))
return true;
return false;
}
#define BNX2X_IS_CQE_COMPLETED(cqe_fp) (cqe_fp->marker == 0x0)
#define BNX2X_SEED_CQE(cqe_fp) (cqe_fp->marker = 0xFFFFFFFF)
static inline int bnx2x_has_rx_work(struct bnx2x_fastpath *fp)
{
u16 cons;
union eth_rx_cqe *cqe;
struct eth_fast_path_rx_cqe *cqe_fp;
cons = RCQ_BD(fp->rx_comp_cons);
cqe = &fp->rx_comp_ring[cons];
cqe_fp = &cqe->fast_path_cqe;
return BNX2X_IS_CQE_COMPLETED(cqe_fp);
}
/**
* bnx2x_tx_disable - disables tx from stack point of view
*
* @bp: driver handle
*/
static inline void bnx2x_tx_disable(struct bnx2x *bp)
{
netif_tx_disable(bp->dev);
netif_carrier_off(bp->dev);
}
static inline void bnx2x_free_rx_sge(struct bnx2x *bp,
struct bnx2x_fastpath *fp, u16 index)
{
struct sw_rx_page *sw_buf = &fp->rx_page_ring[index];
struct page *page = sw_buf->page;
struct eth_rx_sge *sge = &fp->rx_sge_ring[index];
/* Skip "next page" elements */
if (!page)
return;
dma_unmap_page(&bp->pdev->dev, dma_unmap_addr(sw_buf, mapping),
SGE_PAGES, DMA_FROM_DEVICE);
__free_pages(page, PAGES_PER_SGE_SHIFT);
sw_buf->page = NULL;
sge->addr_hi = 0;
sge->addr_lo = 0;
}
static inline void bnx2x_del_all_napi_cnic(struct bnx2x *bp)
{
int i;
for_each_rx_queue_cnic(bp, i) {
napi_hash_del(&bnx2x_fp(bp, i, napi));
netif_napi_del(&bnx2x_fp(bp, i, napi));
}
}
static inline void bnx2x_del_all_napi(struct bnx2x *bp)
{
int i;
for_each_eth_queue(bp, i) {
napi_hash_del(&bnx2x_fp(bp, i, napi));
netif_napi_del(&bnx2x_fp(bp, i, napi));
}
}
int bnx2x_set_int_mode(struct bnx2x *bp);
static inline void bnx2x_disable_msi(struct bnx2x *bp)
{
if (bp->flags & USING_MSIX_FLAG) {
pci_disable_msix(bp->pdev);
bp->flags &= ~(USING_MSIX_FLAG | USING_SINGLE_MSIX_FLAG);
} else if (bp->flags & USING_MSI_FLAG) {
pci_disable_msi(bp->pdev);
bp->flags &= ~USING_MSI_FLAG;
}
}
static inline void bnx2x_clear_sge_mask_next_elems(struct bnx2x_fastpath *fp)
{
int i, j;
for (i = 1; i <= NUM_RX_SGE_PAGES; i++) {
int idx = RX_SGE_CNT * i - 1;
for (j = 0; j < 2; j++) {
BIT_VEC64_CLEAR_BIT(fp->sge_mask, idx);
idx--;
}
}
}
static inline void bnx2x_init_sge_ring_bit_mask(struct bnx2x_fastpath *fp)
{
/* Set the mask to all 1-s: it's faster to compare to 0 than to 0xf-s */
memset(fp->sge_mask, 0xff, sizeof(fp->sge_mask));
/* Clear the two last indices in the page to 1:
these are the indices that correspond to the "next" element,
hence will never be indicated and should be removed from
the calculations. */
bnx2x_clear_sge_mask_next_elems(fp);
}
/* note that we are not allocating a new buffer,
* we are just moving one from cons to prod
* we are not creating a new mapping,
* so there is no need to check for dma_mapping_error().
*/
static inline void bnx2x_reuse_rx_data(struct bnx2x_fastpath *fp,
u16 cons, u16 prod)
{
struct sw_rx_bd *cons_rx_buf = &fp->rx_buf_ring[cons];
struct sw_rx_bd *prod_rx_buf = &fp->rx_buf_ring[prod];
struct eth_rx_bd *cons_bd = &fp->rx_desc_ring[cons];
struct eth_rx_bd *prod_bd = &fp->rx_desc_ring[prod];
dma_unmap_addr_set(prod_rx_buf, mapping,
dma_unmap_addr(cons_rx_buf, mapping));
prod_rx_buf->data = cons_rx_buf->data;
*prod_bd = *cons_bd;
}
/************************* Init ******************************************/
/* returns func by VN for current port */
static inline int func_by_vn(struct bnx2x *bp, int vn)
{
return 2 * vn + BP_PORT(bp);
}
static inline int bnx2x_config_rss_eth(struct bnx2x *bp, bool config_hash)
{
return bnx2x_rss(bp, &bp->rss_conf_obj, config_hash, true);
}
/**
* bnx2x_func_start - init function
*
* @bp: driver handle
*
* Must be called before sending CLIENT_SETUP for the first client.
*/
static inline int bnx2x_func_start(struct bnx2x *bp)
{
struct bnx2x_func_state_params func_params = {NULL};
struct bnx2x_func_start_params *start_params =
&func_params.params.start;
/* Prepare parameters for function state transitions */
__set_bit(RAMROD_COMP_WAIT, &func_params.ramrod_flags);
func_params.f_obj = &bp->func_obj;
func_params.cmd = BNX2X_F_CMD_START;
/* Function parameters */
start_params->mf_mode = bp->mf_mode;
start_params->sd_vlan_tag = bp->mf_ov;
if (CHIP_IS_E2(bp) || CHIP_IS_E3(bp))
start_params->network_cos_mode = STATIC_COS;
else /* CHIP_IS_E1X */
start_params->network_cos_mode = FW_WRR;
start_params->gre_tunnel_mode = L2GRE_TUNNEL;
start_params->gre_tunnel_rss = GRE_INNER_HEADERS_RSS;
return bnx2x_func_state_change(bp, &func_params);
}
/**
* bnx2x_set_fw_mac_addr - fill in a MAC address in FW format
*
* @fw_hi: pointer to upper part
* @fw_mid: pointer to middle part
* @fw_lo: pointer to lower part
* @mac: pointer to MAC address
*/
static inline void bnx2x_set_fw_mac_addr(__le16 *fw_hi, __le16 *fw_mid,
__le16 *fw_lo, u8 *mac)
{
((u8 *)fw_hi)[0] = mac[1];
((u8 *)fw_hi)[1] = mac[0];
((u8 *)fw_mid)[0] = mac[3];
((u8 *)fw_mid)[1] = mac[2];
((u8 *)fw_lo)[0] = mac[5];
((u8 *)fw_lo)[1] = mac[4];
}
static inline void bnx2x_free_rx_sge_range(struct bnx2x *bp,
struct bnx2x_fastpath *fp, int last)
{
int i;
if (fp->disable_tpa)
return;
for (i = 0; i < last; i++)
bnx2x_free_rx_sge(bp, fp, i);
}
static inline void bnx2x_set_next_page_rx_bd(struct bnx2x_fastpath *fp)
{
int i;
for (i = 1; i <= NUM_RX_RINGS; i++) {
struct eth_rx_bd *rx_bd;
rx_bd = &fp->rx_desc_ring[RX_DESC_CNT * i - 2];
rx_bd->addr_hi =
cpu_to_le32(U64_HI(fp->rx_desc_mapping +
BCM_PAGE_SIZE*(i % NUM_RX_RINGS)));
rx_bd->addr_lo =
cpu_to_le32(U64_LO(fp->rx_desc_mapping +
BCM_PAGE_SIZE*(i % NUM_RX_RINGS)));
}
}
/* Statistics ID are global per chip/path, while Client IDs for E1x are per
* port.
*/
static inline u8 bnx2x_stats_id(struct bnx2x_fastpath *fp)
{
struct bnx2x *bp = fp->bp;
if (!CHIP_IS_E1x(bp)) {
/* there are special statistics counters for FCoE 136..140 */
if (IS_FCOE_FP(fp))
return bp->cnic_base_cl_id + (bp->pf_num >> 1);
return fp->cl_id;
}
return fp->cl_id + BP_PORT(bp) * FP_SB_MAX_E1x;
}
static inline void bnx2x_init_vlan_mac_fp_objs(struct bnx2x_fastpath *fp,
bnx2x_obj_type obj_type)
{
struct bnx2x *bp = fp->bp;
/* Configure classification DBs */
bnx2x_init_mac_obj(bp, &bnx2x_sp_obj(bp, fp).mac_obj, fp->cl_id,
fp->cid, BP_FUNC(bp), bnx2x_sp(bp, mac_rdata),
bnx2x_sp_mapping(bp, mac_rdata),
BNX2X_FILTER_MAC_PENDING,
&bp->sp_state, obj_type,
&bp->macs_pool);
}
/**
* bnx2x_get_path_func_num - get number of active functions
*
* @bp: driver handle
*
* Calculates the number of active (not hidden) functions on the
* current path.
*/
static inline u8 bnx2x_get_path_func_num(struct bnx2x *bp)
{
u8 func_num = 0, i;
/* 57710 has only one function per-port */
if (CHIP_IS_E1(bp))
return 1;
/* Calculate a number of functions enabled on the current
* PATH/PORT.
*/
if (CHIP_REV_IS_SLOW(bp)) {
if (IS_MF(bp))
func_num = 4;
else
func_num = 2;
} else {
for (i = 0; i < E1H_FUNC_MAX / 2; i++) {
u32 func_config =
MF_CFG_RD(bp,
func_mf_config[BP_PORT(bp) + 2 * i].
config);
func_num +=
((func_config & FUNC_MF_CFG_FUNC_HIDE) ? 0 : 1);
}
}
WARN_ON(!func_num);
return func_num;
}
static inline void bnx2x_init_bp_objs(struct bnx2x *bp)
{
/* RX_MODE controlling object */
bnx2x_init_rx_mode_obj(bp, &bp->rx_mode_obj);
/* multicast configuration controlling object */
bnx2x_init_mcast_obj(bp, &bp->mcast_obj, bp->fp->cl_id, bp->fp->cid,
BP_FUNC(bp), BP_FUNC(bp),
bnx2x_sp(bp, mcast_rdata),
bnx2x_sp_mapping(bp, mcast_rdata),
BNX2X_FILTER_MCAST_PENDING, &bp->sp_state,
BNX2X_OBJ_TYPE_RX);
/* Setup CAM credit pools */
bnx2x_init_mac_credit_pool(bp, &bp->macs_pool, BP_FUNC(bp),
bnx2x_get_path_func_num(bp));
bnx2x_init_vlan_credit_pool(bp, &bp->vlans_pool, BP_ABS_FUNC(bp)>>1,
bnx2x_get_path_func_num(bp));
/* RSS configuration object */
bnx2x_init_rss_config_obj(bp, &bp->rss_conf_obj, bp->fp->cl_id,
bp->fp->cid, BP_FUNC(bp), BP_FUNC(bp),
bnx2x_sp(bp, rss_rdata),
bnx2x_sp_mapping(bp, rss_rdata),
BNX2X_FILTER_RSS_CONF_PENDING, &bp->sp_state,
BNX2X_OBJ_TYPE_RX);
}
static inline u8 bnx2x_fp_qzone_id(struct bnx2x_fastpath *fp)
{
if (CHIP_IS_E1x(fp->bp))
return fp->cl_id + BP_PORT(fp->bp) * ETH_MAX_RX_CLIENTS_E1H;
else
return fp->cl_id;
}
static inline void bnx2x_init_txdata(struct bnx2x *bp,
struct bnx2x_fp_txdata *txdata, u32 cid,
int txq_index, __le16 *tx_cons_sb,
struct bnx2x_fastpath *fp)
{
txdata->cid = cid;
txdata->txq_index = txq_index;
txdata->tx_cons_sb = tx_cons_sb;
txdata->parent_fp = fp;
txdata->tx_ring_size = IS_FCOE_FP(fp) ? MAX_TX_AVAIL : bp->tx_ring_size;
DP(NETIF_MSG_IFUP, "created tx data cid %d, txq %d\n",
txdata->cid, txdata->txq_index);
}
static inline u8 bnx2x_cnic_eth_cl_id(struct bnx2x *bp, u8 cl_idx)
{
return bp->cnic_base_cl_id + cl_idx +
(bp->pf_num >> 1) * BNX2X_MAX_CNIC_ETH_CL_ID_IDX;
}
static inline u8 bnx2x_cnic_fw_sb_id(struct bnx2x *bp)
{
/* the 'first' id is allocated for the cnic */
return bp->base_fw_ndsb;
}
static inline u8 bnx2x_cnic_igu_sb_id(struct bnx2x *bp)
{
return bp->igu_base_sb;
}
static inline int bnx2x_clean_tx_queue(struct bnx2x *bp,
struct bnx2x_fp_txdata *txdata)
{
int cnt = 1000;
while (bnx2x_has_tx_work_unload(txdata)) {
if (!cnt) {
BNX2X_ERR("timeout waiting for queue[%d]: txdata->tx_pkt_prod(%d) != txdata->tx_pkt_cons(%d)\n",
txdata->txq_index, txdata->tx_pkt_prod,
txdata->tx_pkt_cons);
#ifdef BNX2X_STOP_ON_ERROR
bnx2x_panic();
return -EBUSY;
#else
break;
#endif
}
cnt--;
usleep_range(1000, 2000);
}
return 0;
}
int bnx2x_get_link_cfg_idx(struct bnx2x *bp);
static inline void __storm_memset_struct(struct bnx2x *bp,
u32 addr, size_t size, u32 *data)
{
int i;
for (i = 0; i < size/4; i++)
REG_WR(bp, addr + (i * 4), data[i]);
}
/**
* bnx2x_wait_sp_comp - wait for the outstanding SP commands.
*
* @bp: driver handle
* @mask: bits that need to be cleared
*/
static inline bool bnx2x_wait_sp_comp(struct bnx2x *bp, unsigned long mask)
{
int tout = 5000; /* Wait for 5 secs tops */
while (tout--) {
smp_mb();
netif_addr_lock_bh(bp->dev);
if (!(bp->sp_state & mask)) {
netif_addr_unlock_bh(bp->dev);
return true;
}
netif_addr_unlock_bh(bp->dev);
usleep_range(1000, 2000);
}
smp_mb();
netif_addr_lock_bh(bp->dev);
if (bp->sp_state & mask) {
BNX2X_ERR("Filtering completion timed out. sp_state 0x%lx, mask 0x%lx\n",
bp->sp_state, mask);
netif_addr_unlock_bh(bp->dev);
return false;
}
netif_addr_unlock_bh(bp->dev);
return true;
}
/**
* bnx2x_set_ctx_validation - set CDU context validation values
*
* @bp: driver handle
* @cxt: context of the connection on the host memory
* @cid: SW CID of the connection to be configured
*/
void bnx2x_set_ctx_validation(struct bnx2x *bp, struct eth_context *cxt,
u32 cid);
void bnx2x_update_coalesce_sb_index(struct bnx2x *bp, u8 fw_sb_id,
u8 sb_index, u8 disable, u16 usec);
void bnx2x_acquire_phy_lock(struct bnx2x *bp);
void bnx2x_release_phy_lock(struct bnx2x *bp);
/**
* bnx2x_extract_max_cfg - extract MAX BW part from MF configuration.
*
* @bp: driver handle
* @mf_cfg: MF configuration
*
*/
static inline u16 bnx2x_extract_max_cfg(struct bnx2x *bp, u32 mf_cfg)
{
u16 max_cfg = (mf_cfg & FUNC_MF_CFG_MAX_BW_MASK) >>
FUNC_MF_CFG_MAX_BW_SHIFT;
if (!max_cfg) {
DP(NETIF_MSG_IFUP | BNX2X_MSG_ETHTOOL,
"Max BW configured to 0 - using 100 instead\n");
max_cfg = 100;
}
return max_cfg;
}
/* checks if HW supports GRO for given MTU */
static inline bool bnx2x_mtu_allows_gro(int mtu)
{
/* gro frags per page */
int fpp = SGE_PAGE_SIZE / (mtu - ETH_MAX_TPA_HEADER_SIZE);
/*
* 1. Number of frags should not grow above MAX_SKB_FRAGS
* 2. Frag must fit the page
*/
return mtu <= SGE_PAGE_SIZE && (U_ETH_SGL_SIZE * fpp) <= MAX_SKB_FRAGS;
}
/**
* bnx2x_get_iscsi_info - update iSCSI params according to licensing info.
*
* @bp: driver handle
*
*/
void bnx2x_get_iscsi_info(struct bnx2x *bp);
/**
* bnx2x_link_sync_notify - send notification to other functions.
*
* @bp: driver handle
*
*/
static inline void bnx2x_link_sync_notify(struct bnx2x *bp)
{
int func;
int vn;
/* Set the attention towards other drivers on the same port */
for (vn = VN_0; vn < BP_MAX_VN_NUM(bp); vn++) {
if (vn == BP_VN(bp))
continue;
func = func_by_vn(bp, vn);
REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_0 +
(LINK_SYNC_ATTENTION_BIT_FUNC_0 + func)*4, 1);
}
}
/**
* bnx2x_update_drv_flags - update flags in shmem
*
* @bp: driver handle
* @flags: flags to update
* @set: set or clear
*
*/
static inline void bnx2x_update_drv_flags(struct bnx2x *bp, u32 flags, u32 set)
{
if (SHMEM2_HAS(bp, drv_flags)) {
u32 drv_flags;
bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_DRV_FLAGS);
drv_flags = SHMEM2_RD(bp, drv_flags);
if (set)
SET_FLAGS(drv_flags, flags);
else
RESET_FLAGS(drv_flags, flags);
SHMEM2_WR(bp, drv_flags, drv_flags);
DP(NETIF_MSG_IFUP, "drv_flags 0x%08x\n", drv_flags);
bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_DRV_FLAGS);
}
}
static inline bool bnx2x_is_valid_ether_addr(struct bnx2x *bp, u8 *addr)
{
if (is_valid_ether_addr(addr) ||
(is_zero_ether_addr(addr) &&
(IS_MF_STORAGE_SD(bp) || IS_MF_FCOE_AFEX(bp))))
return true;
return false;
}
/**
* bnx2x_fill_fw_str - Fill buffer with FW version string
*
* @bp: driver handle
* @buf: character buffer to fill with the fw name
* @buf_len: length of the above buffer
*
*/
void bnx2x_fill_fw_str(struct bnx2x *bp, char *buf, size_t buf_len);
int bnx2x_drain_tx_queues(struct bnx2x *bp);
void bnx2x_squeeze_objects(struct bnx2x *bp);
void bnx2x_schedule_sp_rtnl(struct bnx2x*, enum sp_rtnl_flag,
u32 verbose);
#endif /* BNX2X_CMN_H */