/* bnx2x_cmn.h: QLogic Everest network driver. * * Copyright (c) 2007-2013 Broadcom Corporation * Copyright (c) 2014 QLogic Corporation * All rights reserved * * 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: Ariel Elior <ariel.elior@qlogic.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
/* This is used as a replacement for an MCP if it's not present */ externint bnx2x_load_count[2][3]; /* per-path: 0-common, 1-port0, 2-port1 */ externint 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)
/*********************** 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_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_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);
/** * 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, constchar *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);
/* setup_tc callback */ int bnx2x_setup_tc(struct net_device *dev, u8 num_tc); int __bnx2x_setup_tc(struct net_device *dev, enum tc_setup_type type, void *type_data);
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,
__be16 vlan_proto); int bnx2x_set_vf_spoofchk(struct net_device *dev, int idx, bool val);
/* 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_RELAXED(bp, fp->ustorm_rx_prods_offset + i * 4,
((u32 *)&rx_prods)[i]);
/** * 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_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
/** bnx2x_get_c2s_mapping - read inner-to-outer vlan configuration * c2s_map should have BNX2X_MAX_PRIORITY entries. * @bp: driver handle * @c2s_map: should have BNX2X_MAX_PRIORITY entries for mapping * @c2s_default: entry for non-tagged configuration
*/ void bnx2x_get_c2s_mapping(struct bnx2x *bp, u8 *c2s_map, u8 *c2s_default);
/*********************** Inlines **********************************/ /*********************** Fast path ********************************/ staticinlinevoid 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];
}
/* Skip "next page" elements */ if (!page) return;
/* Since many fragments can share the same page, make sure to * only unmap and free the page once.
*/
dma_unmap_page(&bp->pdev->dev, dma_unmap_addr(sw_buf, mapping),
SGE_PAGE_SIZE, DMA_FROM_DEVICE);
staticinlinevoid 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().
*/ staticinlinevoid 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];
/* Statistics ID are global per chip/path, while Client IDs for E1x are per * port.
*/ staticinline 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;
}
/** * 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.
*/ staticinline 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_PATH(bp) + 2 * i].
config);
func_num +=
((func_config & FUNC_MF_CFG_FUNC_HIDE) ? 0 : 1);
}
}
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);
staticinlinevoid __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
*/ staticinlinebool bnx2x_wait_sp_comp(struct bnx2x *bp, unsignedlong 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); returntrue;
}
netif_addr_unlock_bh(bp->dev);
/** * 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);
/** * bnx2x_extract_max_cfg - extract MAX BW part from MF configuration. * * @bp: driver handle * @mf_cfg: MF configuration *
*/ staticinline 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 */ staticinlinebool 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_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);
/** * bnx2x_set_os_driver_state - write driver state for management FW usage * * @bp: driver handle * @state: OS_DRIVER_STATE_* value reflecting current driver state
*/ void bnx2x_set_os_driver_state(struct bnx2x *bp, u32 state);
/** * bnx2x_nvram_read - reads data from nvram [might sleep] * * @bp: driver handle * @offset: byte offset in nvram * @ret_buf: pointer to buffer where data is to be stored * @buf_size: Length of 'ret_buf' in bytes
*/ int bnx2x_nvram_read(struct bnx2x *bp, u32 offset, u8 *ret_buf, int buf_size);
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