diff options
Diffstat (limited to 'drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h')
-rw-r--r-- | drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h | 122 |
1 files changed, 111 insertions, 11 deletions
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h index bf27c54..33aa7de 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h @@ -1,6 +1,6 @@ /* bnx2x_cmn.h: Broadcom Everest network driver. * - * Copyright (c) 2007-2011 Broadcom Corporation + * Copyright (c) 2007-2012 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 @@ -379,8 +379,8 @@ void bnx2x_set_q_rx_mode(struct bnx2x *bp, u8 cl_id, unsigned long ramrod_flags); /* Parity errors related */ -void bnx2x_inc_load_cnt(struct bnx2x *bp); -u32 bnx2x_dec_load_cnt(struct bnx2x *bp); +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); @@ -534,8 +534,9 @@ int bnx2x_change_mtu(struct net_device *dev, int new_mtu); */ 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); + netdev_features_t features); int bnx2x_set_features(struct net_device *dev, netdev_features_t features); /** @@ -614,8 +615,7 @@ static inline void bnx2x_igu_clear_sb_gen(struct bnx2x *bp, u8 func, u32 igu_addr_ctl = IGU_REG_COMMAND_REG_CTRL; u32 igu_addr_ack = IGU_REG_CSTORM_TYPE_0_SB_CLEANUP + (idu_sb_id/32)*4; u32 sb_bit = 1 << (idu_sb_id%32); - u32 func_encode = func | - ((is_Pf == true ? 1 : 0) << IGU_FID_ENCODE_IS_PF_SHIFT); + u32 func_encode = func | (is_Pf ? 1 : 0) << IGU_FID_ENCODE_IS_PF_SHIFT; u32 addr_encode = IGU_CMD_E2_PROD_UPD_BASE + idu_sb_id; /* Not supported in BC mode */ @@ -984,10 +984,11 @@ static inline int bnx2x_func_start(struct bnx2x *bp) /* Function parameters */ start_params->mf_mode = bp->mf_mode; start_params->sd_vlan_tag = bp->mf_ov; - if (CHIP_IS_E1x(bp)) - start_params->network_cos_mode = OVERRIDE_COS; - else + + 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; return bnx2x_func_state_change(bp, &func_params); } @@ -1491,6 +1492,105 @@ static inline u16 bnx2x_extract_max_cfg(struct bnx2x *bp, u32 mf_cfg) 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; +} + +static inline bool bnx2x_need_gro_check(int mtu) +{ + return (SGE_PAGES / (mtu - ETH_MAX_TPA_HEADER_SIZE - 1)) != + (SGE_PAGES / (mtu - ETH_MIN_TPA_HEADER_SIZE + 1)); +} + +/** + * bnx2x_bz_fp - zero content of the fastpath structure. + * + * @bp: driver handle + * @index: fastpath index to be zeroed + * + * Makes sure the contents of the bp->fp[index].napi is kept + * intact. + */ +static inline void bnx2x_bz_fp(struct bnx2x *bp, int index) +{ + struct bnx2x_fastpath *fp = &bp->fp[index]; + struct napi_struct orig_napi = fp->napi; + /* bzero bnx2x_fastpath contents */ + if (bp->stats_init) + memset(fp, 0, sizeof(*fp)); + else { + /* Keep Queue statistics */ + struct bnx2x_eth_q_stats *tmp_eth_q_stats; + struct bnx2x_eth_q_stats_old *tmp_eth_q_stats_old; + + tmp_eth_q_stats = kzalloc(sizeof(struct bnx2x_eth_q_stats), + GFP_KERNEL); + if (tmp_eth_q_stats) + memcpy(tmp_eth_q_stats, &fp->eth_q_stats, + sizeof(struct bnx2x_eth_q_stats)); + + tmp_eth_q_stats_old = + kzalloc(sizeof(struct bnx2x_eth_q_stats_old), + GFP_KERNEL); + if (tmp_eth_q_stats_old) + memcpy(tmp_eth_q_stats_old, &fp->eth_q_stats_old, + sizeof(struct bnx2x_eth_q_stats_old)); + + memset(fp, 0, sizeof(*fp)); + + if (tmp_eth_q_stats) { + memcpy(&fp->eth_q_stats, tmp_eth_q_stats, + sizeof(struct bnx2x_eth_q_stats)); + kfree(tmp_eth_q_stats); + } + + if (tmp_eth_q_stats_old) { + memcpy(&fp->eth_q_stats_old, tmp_eth_q_stats_old, + sizeof(struct bnx2x_eth_q_stats_old)); + kfree(tmp_eth_q_stats_old); + } + + } + + /* Restore the NAPI object as it has been already initialized */ + fp->napi = orig_napi; + + fp->bp = bp; + fp->index = index; + if (IS_ETH_FP(fp)) + fp->max_cos = bp->max_cos; + else + /* Special queues support only one CoS */ + fp->max_cos = 1; + + /* + * set the tpa flag for each queue. The tpa flag determines the queue + * minimal size so it must be set prior to queue memory allocation + */ + fp->disable_tpa = !(bp->flags & TPA_ENABLE_FLAG || + (bp->flags & GRO_ENABLE_FLAG && + bnx2x_mtu_allows_gro(bp->dev->mtu))); + if (bp->flags & TPA_ENABLE_FLAG) + fp->mode = TPA_MODE_LRO; + else if (bp->flags & GRO_ENABLE_FLAG) + fp->mode = TPA_MODE_GRO; + +#ifdef BCM_CNIC + /* We don't want TPA on an FCoE L2 ring */ + if (IS_FCOE_FP(fp)) + fp->disable_tpa = 1; +#endif +} + /** * bnx2x_get_iscsi_info - update iSCSI params according to licensing info. * @@ -1539,7 +1639,7 @@ 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_DRV_FLAGS); + bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_DRV_FLAGS); drv_flags = SHMEM2_RD(bp, drv_flags); if (set) @@ -1549,7 +1649,7 @@ static inline void bnx2x_update_drv_flags(struct bnx2x *bp, u32 flags, u32 set) SHMEM2_WR(bp, drv_flags, drv_flags); DP(NETIF_MSG_HW, "drv_flags 0x%08x\n", drv_flags); - bnx2x_release_hw_lock(bp, HW_LOCK_DRV_FLAGS); + bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_DRV_FLAGS); } } |