diff options
Diffstat (limited to 'drivers')
25 files changed, 324 insertions, 184 deletions
diff --git a/drivers/edac/ghes_edac.c b/drivers/edac/ghes_edac.c index 6d1ddecbf0da..d0a9ccf640c4 100644 --- a/drivers/edac/ghes_edac.c +++ b/drivers/edac/ghes_edac.c @@ -101,9 +101,14 @@ static void dimm_setup_label(struct dimm_info *dimm, u16 handle) dmi_memdev_name(handle, &bank, &device); - /* both strings must be non-zero */ - if (bank && *bank && device && *device) - snprintf(dimm->label, sizeof(dimm->label), "%s %s", bank, device); + /* + * Set to a NULL string when both bank and device are zero. In this case, + * the label assigned by default will be preserved. + */ + snprintf(dimm->label, sizeof(dimm->label), "%s%s%s", + (bank && *bank) ? bank : "", + (bank && *bank && device && *device) ? " " : "", + (device && *device) ? device : ""); } static void assign_dmi_dimm_info(struct dimm_info *dimm, struct memdev_dmi_entry *entry) diff --git a/drivers/edac/synopsys_edac.c b/drivers/edac/synopsys_edac.c index 40b1abeca856..a14baeca6400 100644 --- a/drivers/edac/synopsys_edac.c +++ b/drivers/edac/synopsys_edac.c @@ -527,6 +527,28 @@ static void handle_error(struct mem_ctl_info *mci, struct synps_ecc_status *p) memset(p, 0, sizeof(*p)); } +static void enable_intr(struct synps_edac_priv *priv) +{ + /* Enable UE/CE Interrupts */ + if (priv->p_data->quirks & DDR_ECC_INTR_SELF_CLEAR) + writel(DDR_UE_MASK | DDR_CE_MASK, + priv->baseaddr + ECC_CLR_OFST); + else + writel(DDR_QOSUE_MASK | DDR_QOSCE_MASK, + priv->baseaddr + DDR_QOS_IRQ_EN_OFST); + +} + +static void disable_intr(struct synps_edac_priv *priv) +{ + /* Disable UE/CE Interrupts */ + if (priv->p_data->quirks & DDR_ECC_INTR_SELF_CLEAR) + writel(0x0, priv->baseaddr + ECC_CLR_OFST); + else + writel(DDR_QOSUE_MASK | DDR_QOSCE_MASK, + priv->baseaddr + DDR_QOS_IRQ_DB_OFST); +} + /** * intr_handler - Interrupt Handler for ECC interrupts. * @irq: IRQ number. @@ -568,6 +590,9 @@ static irqreturn_t intr_handler(int irq, void *dev_id) /* v3.0 of the controller does not have this register */ if (!(priv->p_data->quirks & DDR_ECC_INTR_SELF_CLEAR)) writel(regval, priv->baseaddr + DDR_QOS_IRQ_STAT_OFST); + else + enable_intr(priv); + return IRQ_HANDLED; } @@ -850,25 +875,6 @@ static void mc_init(struct mem_ctl_info *mci, struct platform_device *pdev) init_csrows(mci); } -static void enable_intr(struct synps_edac_priv *priv) -{ - /* Enable UE/CE Interrupts */ - if (priv->p_data->quirks & DDR_ECC_INTR_SELF_CLEAR) - writel(DDR_UE_MASK | DDR_CE_MASK, - priv->baseaddr + ECC_CLR_OFST); - else - writel(DDR_QOSUE_MASK | DDR_QOSCE_MASK, - priv->baseaddr + DDR_QOS_IRQ_EN_OFST); - -} - -static void disable_intr(struct synps_edac_priv *priv) -{ - /* Disable UE/CE Interrupts */ - writel(DDR_QOSUE_MASK | DDR_QOSCE_MASK, - priv->baseaddr + DDR_QOS_IRQ_DB_OFST); -} - static int setup_irq(struct mem_ctl_info *mci, struct platform_device *pdev) { diff --git a/drivers/gpu/drm/nouveau/nouveau_dmem.c b/drivers/gpu/drm/nouveau/nouveau_dmem.c index 7ba66ad68a8a..16356611b5b9 100644 --- a/drivers/gpu/drm/nouveau/nouveau_dmem.c +++ b/drivers/gpu/drm/nouveau/nouveau_dmem.c @@ -680,7 +680,11 @@ nouveau_dmem_migrate_vma(struct nouveau_drm *drm, goto out_free_dma; for (i = 0; i < npages; i += max) { - args.end = start + (max << PAGE_SHIFT); + if (args.start + (max << PAGE_SHIFT) > end) + args.end = end; + else + args.end = args.start + (max << PAGE_SHIFT); + ret = migrate_vma_setup(&args); if (ret) goto out_free_pfns; diff --git a/drivers/gpu/drm/tiny/simpledrm.c b/drivers/gpu/drm/tiny/simpledrm.c index f5b8e864a5cd..b1a88675bd47 100644 --- a/drivers/gpu/drm/tiny/simpledrm.c +++ b/drivers/gpu/drm/tiny/simpledrm.c @@ -627,7 +627,7 @@ static const struct drm_connector_funcs simpledrm_connector_funcs = { .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, }; -static int +static enum drm_mode_status simpledrm_simple_display_pipe_mode_valid(struct drm_simple_display_pipe *pipe, const struct drm_display_mode *mode) { diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c index b463d85bfb35..47b68c6071be 100644 --- a/drivers/idle/intel_idle.c +++ b/drivers/idle/intel_idle.c @@ -162,7 +162,13 @@ static __cpuidle int intel_idle_irq(struct cpuidle_device *dev, raw_local_irq_enable(); ret = __intel_idle(dev, drv, index); - raw_local_irq_disable(); + + /* + * The lockdep hardirqs state may be changed to 'on' with timer + * tick interrupt followed by __do_softirq(). Use local_irq_disable() + * to keep the hardirqs state correct. + */ + local_irq_disable(); return ret; } diff --git a/drivers/net/ethernet/fungible/funeth/funeth_rx.c b/drivers/net/ethernet/fungible/funeth/funeth_rx.c index 0f6a549b9f67..29a6c2ede43a 100644 --- a/drivers/net/ethernet/fungible/funeth/funeth_rx.c +++ b/drivers/net/ethernet/fungible/funeth/funeth_rx.c @@ -142,6 +142,7 @@ static void *fun_run_xdp(struct funeth_rxq *q, skb_frag_t *frags, void *buf_va, int ref_ok, struct funeth_txq *xdp_q) { struct bpf_prog *xdp_prog; + struct xdp_frame *xdpf; struct xdp_buff xdp; u32 act; @@ -163,7 +164,9 @@ static void *fun_run_xdp(struct funeth_rxq *q, skb_frag_t *frags, void *buf_va, case XDP_TX: if (unlikely(!ref_ok)) goto pass; - if (!fun_xdp_tx(xdp_q, xdp.data, xdp.data_end - xdp.data)) + + xdpf = xdp_convert_buff_to_frame(&xdp); + if (!xdpf || !fun_xdp_tx(xdp_q, xdpf)) goto xdp_error; FUN_QSTAT_INC(q, xdp_tx); q->xdp_flush |= FUN_XDP_FLUSH_TX; diff --git a/drivers/net/ethernet/fungible/funeth/funeth_tx.c b/drivers/net/ethernet/fungible/funeth/funeth_tx.c index ff6e29237253..2f6698b98b03 100644 --- a/drivers/net/ethernet/fungible/funeth/funeth_tx.c +++ b/drivers/net/ethernet/fungible/funeth/funeth_tx.c @@ -466,7 +466,7 @@ static unsigned int fun_xdpq_clean(struct funeth_txq *q, unsigned int budget) do { fun_xdp_unmap(q, reclaim_idx); - page_frag_free(q->info[reclaim_idx].vaddr); + xdp_return_frame(q->info[reclaim_idx].xdpf); trace_funeth_tx_free(q, reclaim_idx, 1, head); @@ -479,11 +479,11 @@ static unsigned int fun_xdpq_clean(struct funeth_txq *q, unsigned int budget) return npkts; } -bool fun_xdp_tx(struct funeth_txq *q, void *data, unsigned int len) +bool fun_xdp_tx(struct funeth_txq *q, struct xdp_frame *xdpf) { struct fun_eth_tx_req *req; struct fun_dataop_gl *gle; - unsigned int idx; + unsigned int idx, len; dma_addr_t dma; if (fun_txq_avail(q) < FUN_XDP_CLEAN_THRES) @@ -494,7 +494,8 @@ bool fun_xdp_tx(struct funeth_txq *q, void *data, unsigned int len) return false; } - dma = dma_map_single(q->dma_dev, data, len, DMA_TO_DEVICE); + len = xdpf->len; + dma = dma_map_single(q->dma_dev, xdpf->data, len, DMA_TO_DEVICE); if (unlikely(dma_mapping_error(q->dma_dev, dma))) { FUN_QSTAT_INC(q, tx_map_err); return false; @@ -514,7 +515,7 @@ bool fun_xdp_tx(struct funeth_txq *q, void *data, unsigned int len) gle = (struct fun_dataop_gl *)req->dataop.imm; fun_dataop_gl_init(gle, 0, 0, len, dma); - q->info[idx].vaddr = data; + q->info[idx].xdpf = xdpf; u64_stats_update_begin(&q->syncp); q->stats.tx_bytes += len; @@ -545,12 +546,9 @@ int fun_xdp_xmit_frames(struct net_device *dev, int n, if (unlikely(q_idx >= fp->num_xdpqs)) return -ENXIO; - for (q = xdpqs[q_idx], i = 0; i < n; i++) { - const struct xdp_frame *xdpf = frames[i]; - - if (!fun_xdp_tx(q, xdpf->data, xdpf->len)) + for (q = xdpqs[q_idx], i = 0; i < n; i++) + if (!fun_xdp_tx(q, frames[i])) break; - } if (unlikely(flags & XDP_XMIT_FLUSH)) fun_txq_wr_db(q); @@ -577,7 +575,7 @@ static void fun_xdpq_purge(struct funeth_txq *q) unsigned int idx = q->cons_cnt & q->mask; fun_xdp_unmap(q, idx); - page_frag_free(q->info[idx].vaddr); + xdp_return_frame(q->info[idx].xdpf); q->cons_cnt++; } } diff --git a/drivers/net/ethernet/fungible/funeth/funeth_txrx.h b/drivers/net/ethernet/fungible/funeth/funeth_txrx.h index 04c9f91b7489..8708e2895946 100644 --- a/drivers/net/ethernet/fungible/funeth/funeth_txrx.h +++ b/drivers/net/ethernet/fungible/funeth/funeth_txrx.h @@ -95,8 +95,8 @@ struct funeth_txq_stats { /* per Tx queue SW counters */ struct funeth_tx_info { /* per Tx descriptor state */ union { - struct sk_buff *skb; /* associated packet */ - void *vaddr; /* start address for XDP */ + struct sk_buff *skb; /* associated packet (sk_buff path) */ + struct xdp_frame *xdpf; /* associated XDP frame (XDP path) */ }; }; @@ -245,7 +245,7 @@ static inline int fun_irq_node(const struct fun_irq *p) int fun_rxq_napi_poll(struct napi_struct *napi, int budget); int fun_txq_napi_poll(struct napi_struct *napi, int budget); netdev_tx_t fun_start_xmit(struct sk_buff *skb, struct net_device *netdev); -bool fun_xdp_tx(struct funeth_txq *q, void *data, unsigned int len); +bool fun_xdp_tx(struct funeth_txq *q, struct xdp_frame *xdpf); int fun_xdp_xmit_frames(struct net_device *dev, int n, struct xdp_frame **frames, u32 flags); diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c index 6f01bffd7e5c..9471f47089b2 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -1920,11 +1920,15 @@ static void i40e_vsi_setup_queue_map(struct i40e_vsi *vsi, * non-zero req_queue_pairs says that user requested a new * queue count via ethtool's set_channels, so use this * value for queues distribution across traffic classes + * We need at least one queue pair for the interface + * to be usable as we see in else statement. */ if (vsi->req_queue_pairs > 0) vsi->num_queue_pairs = vsi->req_queue_pairs; else if (pf->flags & I40E_FLAG_MSIX_ENABLED) vsi->num_queue_pairs = pf->num_lan_msix; + else + vsi->num_queue_pairs = 1; } /* Number of queues per enabled TC */ diff --git a/drivers/net/ethernet/intel/ice/ice_ethtool.c b/drivers/net/ethernet/intel/ice/ice_ethtool.c index 8aee4ae4cc8c..74350a95a6e9 100644 --- a/drivers/net/ethernet/intel/ice/ice_ethtool.c +++ b/drivers/net/ethernet/intel/ice/ice_ethtool.c @@ -660,7 +660,8 @@ static int ice_lbtest_receive_frames(struct ice_rx_ring *rx_ring) rx_desc = ICE_RX_DESC(rx_ring, i); if (!(rx_desc->wb.status_error0 & - cpu_to_le16(ICE_TX_DESC_CMD_EOP | ICE_TX_DESC_CMD_RS))) + (cpu_to_le16(BIT(ICE_RX_FLEX_DESC_STATUS0_DD_S)) | + cpu_to_le16(BIT(ICE_RX_FLEX_DESC_STATUS0_EOF_S))))) continue; rx_buf = &rx_ring->rx_buf[i]; diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c index efb076f71e38..522462f41067 100644 --- a/drivers/net/ethernet/intel/ice/ice_main.c +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -4640,6 +4640,8 @@ ice_probe(struct pci_dev *pdev, const struct pci_device_id __always_unused *ent) ice_set_safe_mode_caps(hw); } + hw->ucast_shared = true; + err = ice_init_pf(pf); if (err) { dev_err(dev, "ice_init_pf failed: %d\n", err); @@ -5994,10 +5996,12 @@ int ice_vsi_cfg(struct ice_vsi *vsi) if (vsi->netdev) { ice_set_rx_mode(vsi->netdev); - err = ice_vsi_vlan_setup(vsi); + if (vsi->type != ICE_VSI_LB) { + err = ice_vsi_vlan_setup(vsi); - if (err) - return err; + if (err) + return err; + } } ice_vsi_cfg_dcb_rings(vsi); diff --git a/drivers/net/ethernet/intel/ice/ice_sriov.c b/drivers/net/ethernet/intel/ice/ice_sriov.c index bb1721f1321d..f4907a3c2d19 100644 --- a/drivers/net/ethernet/intel/ice/ice_sriov.c +++ b/drivers/net/ethernet/intel/ice/ice_sriov.c @@ -1310,39 +1310,6 @@ out_put_vf: } /** - * ice_unicast_mac_exists - check if the unicast MAC exists on the PF's switch - * @pf: PF used to reference the switch's rules - * @umac: unicast MAC to compare against existing switch rules - * - * Return true on the first/any match, else return false - */ -static bool ice_unicast_mac_exists(struct ice_pf *pf, u8 *umac) -{ - struct ice_sw_recipe *mac_recipe_list = - &pf->hw.switch_info->recp_list[ICE_SW_LKUP_MAC]; - struct ice_fltr_mgmt_list_entry *list_itr; - struct list_head *rule_head; - struct mutex *rule_lock; /* protect MAC filter list access */ - - rule_head = &mac_recipe_list->filt_rules; - rule_lock = &mac_recipe_list->filt_rule_lock; - - mutex_lock(rule_lock); - list_for_each_entry(list_itr, rule_head, list_entry) { - u8 *existing_mac = &list_itr->fltr_info.l_data.mac.mac_addr[0]; - - if (ether_addr_equal(existing_mac, umac)) { - mutex_unlock(rule_lock); - return true; - } - } - - mutex_unlock(rule_lock); - - return false; -} - -/** * ice_set_vf_mac * @netdev: network interface device structure * @vf_id: VF identifier @@ -1376,13 +1343,6 @@ int ice_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac) if (ret) goto out_put_vf; - if (ice_unicast_mac_exists(pf, mac)) { - netdev_err(netdev, "Unicast MAC %pM already exists on this PF. Preventing setting VF %u unicast MAC address to %pM\n", - mac, vf_id, mac); - ret = -EINVAL; - goto out_put_vf; - } - mutex_lock(&vf->cfg_lock); /* VF is notified of its new MAC via the PF's response to the diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl.c b/drivers/net/ethernet/intel/ice/ice_virtchnl.c index da7c5ce15be0..3143c2abf775 100644 --- a/drivers/net/ethernet/intel/ice/ice_virtchnl.c +++ b/drivers/net/ethernet/intel/ice/ice_virtchnl.c @@ -2966,7 +2966,8 @@ ice_vc_validate_add_vlan_filter_list(struct ice_vsi *vsi, struct virtchnl_vlan_filtering_caps *vfc, struct virtchnl_vlan_filter_list_v2 *vfl) { - u16 num_requested_filters = vsi->num_vlan + vfl->num_elements; + u16 num_requested_filters = ice_vsi_num_non_zero_vlans(vsi) + + vfl->num_elements; if (num_requested_filters > vfc->max_filters) return false; diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c index 28b19945d716..e64318c110fd 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c @@ -28,6 +28,9 @@ #define MAX_RATE_EXPONENT 0x0FULL #define MAX_RATE_MANTISSA 0xFFULL +#define CN10K_MAX_BURST_MANTISSA 0x7FFFULL +#define CN10K_MAX_BURST_SIZE 8453888ULL + /* Bitfields in NIX_TLX_PIR register */ #define TLX_RATE_MANTISSA GENMASK_ULL(8, 1) #define TLX_RATE_EXPONENT GENMASK_ULL(12, 9) @@ -35,6 +38,9 @@ #define TLX_BURST_MANTISSA GENMASK_ULL(36, 29) #define TLX_BURST_EXPONENT GENMASK_ULL(40, 37) +#define CN10K_TLX_BURST_MANTISSA GENMASK_ULL(43, 29) +#define CN10K_TLX_BURST_EXPONENT GENMASK_ULL(47, 44) + struct otx2_tc_flow_stats { u64 bytes; u64 pkts; @@ -77,33 +83,42 @@ int otx2_tc_alloc_ent_bitmap(struct otx2_nic *nic) } EXPORT_SYMBOL(otx2_tc_alloc_ent_bitmap); -static void otx2_get_egress_burst_cfg(u32 burst, u32 *burst_exp, - u32 *burst_mantissa) +static void otx2_get_egress_burst_cfg(struct otx2_nic *nic, u32 burst, + u32 *burst_exp, u32 *burst_mantissa) { + int max_burst, max_mantissa; unsigned int tmp; + if (is_dev_otx2(nic->pdev)) { + max_burst = MAX_BURST_SIZE; + max_mantissa = MAX_BURST_MANTISSA; + } else { + max_burst = CN10K_MAX_BURST_SIZE; + max_mantissa = CN10K_MAX_BURST_MANTISSA; + } + /* Burst is calculated as * ((256 + BURST_MANTISSA) << (1 + BURST_EXPONENT)) / 256 * Max supported burst size is 130,816 bytes. */ - burst = min_t(u32, burst, MAX_BURST_SIZE); + burst = min_t(u32, burst, max_burst); if (burst) { *burst_exp = ilog2(burst) ? ilog2(burst) - 1 : 0; tmp = burst - rounddown_pow_of_two(burst); - if (burst < MAX_BURST_MANTISSA) + if (burst < max_mantissa) *burst_mantissa = tmp * 2; else *burst_mantissa = tmp / (1ULL << (*burst_exp - 7)); } else { *burst_exp = MAX_BURST_EXPONENT; - *burst_mantissa = MAX_BURST_MANTISSA; + *burst_mantissa = max_mantissa; } } -static void otx2_get_egress_rate_cfg(u32 maxrate, u32 *exp, +static void otx2_get_egress_rate_cfg(u64 maxrate, u32 *exp, u32 *mantissa, u32 *div_exp) { - unsigned int tmp; + u64 tmp; /* Rate calculation by hardware * @@ -132,21 +147,44 @@ static void otx2_get_egress_rate_cfg(u32 maxrate, u32 *exp, } } -static int otx2_set_matchall_egress_rate(struct otx2_nic *nic, u32 burst, u32 maxrate) +static u64 otx2_get_txschq_rate_regval(struct otx2_nic *nic, + u64 maxrate, u32 burst) { - struct otx2_hw *hw = &nic->hw; - struct nix_txschq_config *req; u32 burst_exp, burst_mantissa; u32 exp, mantissa, div_exp; + u64 regval = 0; + + /* Get exponent and mantissa values from the desired rate */ + otx2_get_egress_burst_cfg(nic, burst, &burst_exp, &burst_mantissa); + otx2_get_egress_rate_cfg(maxrate, &exp, &mantissa, &div_exp); + + if (is_dev_otx2(nic->pdev)) { + regval = FIELD_PREP(TLX_BURST_EXPONENT, (u64)burst_exp) | + FIELD_PREP(TLX_BURST_MANTISSA, (u64)burst_mantissa) | + FIELD_PREP(TLX_RATE_DIVIDER_EXPONENT, div_exp) | + FIELD_PREP(TLX_RATE_EXPONENT, exp) | + FIELD_PREP(TLX_RATE_MANTISSA, mantissa) | BIT_ULL(0); + } else { + regval = FIELD_PREP(CN10K_TLX_BURST_EXPONENT, (u64)burst_exp) | + FIELD_PREP(CN10K_TLX_BURST_MANTISSA, (u64)burst_mantissa) | + FIELD_PREP(TLX_RATE_DIVIDER_EXPONENT, div_exp) | + FIELD_PREP(TLX_RATE_EXPONENT, exp) | + FIELD_PREP(TLX_RATE_MANTISSA, mantissa) | BIT_ULL(0); + } + + return regval; +} + +static int otx2_set_matchall_egress_rate(struct otx2_nic *nic, + u32 burst, u64 maxrate) +{ + struct otx2_hw *hw = &nic->hw; + struct nix_txschq_config *req; int txschq, err; /* All SQs share the same TL4, so pick the first scheduler */ txschq = hw->txschq_list[NIX_TXSCH_LVL_TL4][0]; - /* Get exponent and mantissa values from the desired rate */ - otx2_get_egress_burst_cfg(burst, &burst_exp, &burst_mantissa); - otx2_get_egress_rate_cfg(maxrate, &exp, &mantissa, &div_exp); - mutex_lock(&nic->mbox.lock); req = otx2_mbox_alloc_msg_nix_txschq_cfg(&nic->mbox); if (!req) { @@ -157,11 +195,7 @@ static int otx2_set_matchall_egress_rate(struct otx2_nic *nic, u32 burst, u32 ma req->lvl = NIX_TXSCH_LVL_TL4; req->num_regs = 1; req->reg[0] = NIX_AF_TL4X_PIR(txschq); - req->regval[0] = FIELD_PREP(TLX_BURST_EXPONENT, burst_exp) | - FIELD_PREP(TLX_BURST_MANTISSA, burst_mantissa) | - FIELD_PREP(TLX_RATE_DIVIDER_EXPONENT, div_exp) | - FIELD_PREP(TLX_RATE_EXPONENT, exp) | - FIELD_PREP(TLX_RATE_MANTISSA, mantissa) | BIT_ULL(0); + req->regval[0] = otx2_get_txschq_rate_regval(nic, maxrate, burst); err = otx2_sync_mbox_msg(&nic->mbox); mutex_unlock(&nic->mbox.lock); @@ -230,7 +264,7 @@ static int otx2_tc_egress_matchall_install(struct otx2_nic *nic, struct netlink_ext_ack *extack = cls->common.extack; struct flow_action *actions = &cls->rule->action; struct flow_action_entry *entry; - u32 rate; + u64 rate; int err; err = otx2_tc_validate_flow(nic, actions, extack); @@ -256,7 +290,7 @@ static int otx2_tc_egress_matchall_install(struct otx2_nic *nic, } /* Convert bytes per second to Mbps */ rate = entry->police.rate_bytes_ps * 8; - rate = max_t(u32, rate / 1000000, 1); + rate = max_t(u64, rate / 1000000, 1); err = otx2_set_matchall_egress_rate(nic, entry->police.burst, rate); if (err) return err; @@ -614,21 +648,27 @@ static int otx2_tc_prepare_flow(struct otx2_nic *nic, struct otx2_tc_flow *node, flow_spec->dport = match.key->dst; flow_mask->dport = match.mask->dst; - if (ip_proto == IPPROTO_UDP) - req->features |= BIT_ULL(NPC_DPORT_UDP); - else if (ip_proto == IPPROTO_TCP) - req->features |= BIT_ULL(NPC_DPORT_TCP); - else if (ip_proto == IPPROTO_SCTP) - req->features |= BIT_ULL(NPC_DPORT_SCTP); + + if (flow_mask->dport) { + if (ip_proto == IPPROTO_UDP) + req->features |= BIT_ULL(NPC_DPORT_UDP); + else if (ip_proto == IPPROTO_TCP) + req->features |= BIT_ULL(NPC_DPORT_TCP); + else if (ip_proto == IPPROTO_SCTP) + req->features |= BIT_ULL(NPC_DPORT_SCTP); + } flow_spec->sport = match.key->src; flow_mask->sport = match.mask->src; - if (ip_proto == IPPROTO_UDP) - req->features |= BIT_ULL(NPC_SPORT_UDP); - else if (ip_proto == IPPROTO_TCP) - req->features |= BIT_ULL(NPC_SPORT_TCP); - else if (ip_proto == IPPROTO_SCTP) - req->features |= BIT_ULL(NPC_SPORT_SCTP); + + if (flow_mask->sport) { + if (ip_proto == IPPROTO_UDP) + req->features |= BIT_ULL(NPC_SPORT_UDP); + else if (ip_proto == IPPROTO_TCP) + req->features |= BIT_ULL(NPC_SPORT_TCP); + else if (ip_proto == IPPROTO_SCTP) + req->features |= BIT_ULL(NPC_SPORT_SCTP); + } } return otx2_tc_parse_actions(nic, &rule->action, req, f, node); diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c index c00d6c4ed37c..245d36696486 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c @@ -7022,7 +7022,7 @@ mlxsw_sp_fib6_entry_nexthop_add(struct mlxsw_sp *mlxsw_sp, mlxsw_sp_rt6 = mlxsw_sp_rt6_create(rt_arr[i]); if (IS_ERR(mlxsw_sp_rt6)) { err = PTR_ERR(mlxsw_sp_rt6); - goto err_rt6_create; + goto err_rt6_unwind; } list_add_tail(&mlxsw_sp_rt6->list, &fib6_entry->rt6_list); @@ -7031,14 +7031,12 @@ mlxsw_sp_fib6_entry_nexthop_add(struct mlxsw_sp *mlxsw_sp, err = mlxsw_sp_nexthop6_group_update(mlxsw_sp, op_ctx, fib6_entry); if (err) - goto err_nexthop6_group_update; + goto err_rt6_unwind; return 0; -err_nexthop6_group_update: - i = nrt6; -err_rt6_create: - for (i--; i >= 0; i--) { +err_rt6_unwind: + for (; i > 0; i--) { fib6_entry->nrt6--; mlxsw_sp_rt6 = list_last_entry(&fib6_entry->rt6_list, struct mlxsw_sp_rt6, list); @@ -7166,7 +7164,7 @@ mlxsw_sp_fib6_entry_create(struct mlxsw_sp *mlxsw_sp, mlxsw_sp_rt6 = mlxsw_sp_rt6_create(rt_arr[i]); if (IS_ERR(mlxsw_sp_rt6)) { err = PTR_ERR(mlxsw_sp_rt6); - goto err_rt6_create; + goto err_rt6_unwind; } list_add_tail(&mlxsw_sp_rt6->list, &fib6_entry->rt6_list); fib6_entry->nrt6++; @@ -7174,7 +7172,7 @@ mlxsw_sp_fib6_entry_create(struct mlxsw_sp *mlxsw_sp, err = mlxsw_sp_nexthop6_group_get(mlxsw_sp, fib6_entry); if (err) - goto err_nexthop6_group_get; + goto err_rt6_unwind; err = mlxsw_sp_nexthop_group_vr_link(fib_entry->nh_group, fib_node->fib); @@ -7193,10 +7191,8 @@ err_fib6_entry_type_set: mlxsw_sp_nexthop_group_vr_unlink(fib_entry->nh_group, fib_node->fib); err_nexthop_group_vr_link: mlxsw_sp_nexthop6_group_put(mlxsw_sp, fib_entry); -err_nexthop6_group_get: - i = nrt6; -err_rt6_create: - for (i--; i >= 0; i--) { +err_rt6_unwind: + for (; i > 0; i--) { fib6_entry->nrt6--; mlxsw_sp_rt6 = list_last_entry(&fib6_entry->rt6_list, struct mlxsw_sp_rt6, list); diff --git a/drivers/net/ethernet/sfc/ptp.c b/drivers/net/ethernet/sfc/ptp.c index 4625f85acab2..10ad0b93d283 100644 --- a/drivers/net/ethernet/sfc/ptp.c +++ b/drivers/net/ethernet/sfc/ptp.c @@ -1100,7 +1100,29 @@ static void efx_ptp_xmit_skb_queue(struct efx_nic *efx, struct sk_buff *skb) tx_queue = efx_channel_get_tx_queue(ptp_data->channel, type); if (tx_queue && tx_queue->timestamping) { + /* This code invokes normal driver TX code which is always + * protected from softirqs when called from generic TX code, + * which in turn disables preemption. Look at __dev_queue_xmit + * which uses rcu_read_lock_bh disabling preemption for RCU + * plus disabling softirqs. We do not need RCU reader + * protection here. + * + * Although it is theoretically safe for current PTP TX/RX code + * running without disabling softirqs, there are three good + * reasond for doing so: + * + * 1) The code invoked is mainly implemented for non-PTP + * packets and it is always executed with softirqs + * disabled. + * 2) This being a single PTP packet, better to not + * interrupt its processing by softirqs which can lead + * to high latencies. + * 3) netdev_xmit_more checks preemption is disabled and + * triggers a BUG_ON if not. + */ + local_bh_disable(); efx_enqueue_skb(tx_queue, skb); + local_bh_enable(); } else { WARN_ONCE(1, "PTP channel has no timestamped tx queue\n"); dev_kfree_skb_any(skb); diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c index ca8ab290013c..d42e1afb6521 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c @@ -688,18 +688,19 @@ static int mediatek_dwmac_probe(struct platform_device *pdev) ret = mediatek_dwmac_clks_config(priv_plat, true); if (ret) - return ret; + goto err_remove_config_dt; ret = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res); - if (ret) { - stmmac_remove_config_dt(pdev, plat_dat); + if (ret) goto err_drv_probe; - } return 0; err_drv_probe: mediatek_dwmac_clks_config(priv_plat, false); +err_remove_config_dt: + stmmac_remove_config_dt(pdev, plat_dat); + return ret; } diff --git a/drivers/net/macsec.c b/drivers/net/macsec.c index 817577e713d7..f354fad05714 100644 --- a/drivers/net/macsec.c +++ b/drivers/net/macsec.c @@ -243,6 +243,7 @@ static struct macsec_cb *macsec_skb_cb(struct sk_buff *skb) #define DEFAULT_SEND_SCI true #define DEFAULT_ENCRYPT false #define DEFAULT_ENCODING_SA 0 +#define MACSEC_XPN_MAX_REPLAY_WINDOW (((1 << 30) - 1)) static bool send_sci(const struct macsec_secy *secy) { @@ -1697,7 +1698,7 @@ static bool validate_add_rxsa(struct nlattr **attrs) return false; if (attrs[MACSEC_SA_ATTR_PN] && - *(u64 *)nla_data(attrs[MACSEC_SA_ATTR_PN]) == 0) + nla_get_u64(attrs[MACSEC_SA_ATTR_PN]) == 0) return false; if (attrs[MACSEC_SA_ATTR_ACTIVE]) { @@ -1753,7 +1754,8 @@ static int macsec_add_rxsa(struct sk_buff *skb, struct genl_info *info) } pn_len = secy->xpn ? MACSEC_XPN_PN_LEN : MACSEC_DEFAULT_PN_LEN; - if (nla_len(tb_sa[MACSEC_SA_ATTR_PN]) != pn_len) { + if (tb_sa[MACSEC_SA_ATTR_PN] && + nla_len(tb_sa[MACSEC_SA_ATTR_PN]) != pn_len) { pr_notice("macsec: nl: add_rxsa: bad pn length: %d != %d\n", nla_len(tb_sa[MACSEC_SA_ATTR_PN]), pn_len); rtnl_unlock(); @@ -1769,7 +1771,7 @@ static int macsec_add_rxsa(struct sk_buff *skb, struct genl_info *info) if (nla_len(tb_sa[MACSEC_SA_ATTR_SALT]) != MACSEC_SALT_LEN) { pr_notice("macsec: nl: add_rxsa: bad salt length: %d != %d\n", nla_len(tb_sa[MACSEC_SA_ATTR_SALT]), - MACSEC_SA_ATTR_SALT); + MACSEC_SALT_LEN); rtnl_unlock(); return -EINVAL; } @@ -1842,7 +1844,7 @@ static int macsec_add_rxsa(struct sk_buff *skb, struct genl_info *info) return 0; cleanup: - kfree(rx_sa); + macsec_rxsa_put(rx_sa); rtnl_unlock(); return err; } @@ -1939,7 +1941,7 @@ static bool validate_add_txsa(struct nlattr **attrs) if (nla_get_u8(attrs[MACSEC_SA_ATTR_AN]) >= MACSEC_NUM_AN) return false; - if (nla_get_u32(attrs[MACSEC_SA_ATTR_PN]) == 0) + if (nla_get_u64(attrs[MACSEC_SA_ATTR_PN]) == 0) return false; if (attrs[MACSEC_SA_ATTR_ACTIVE]) { @@ -2011,7 +2013,7 @@ static int macsec_add_txsa(struct sk_buff *skb, struct genl_info *info) if (nla_len(tb_sa[MACSEC_SA_ATTR_SALT]) != MACSEC_SALT_LEN) { pr_notice("macsec: nl: add_txsa: bad salt length: %d != %d\n", nla_len(tb_sa[MACSEC_SA_ATTR_SALT]), - MACSEC_SA_ATTR_SALT); + MACSEC_SALT_LEN); rtnl_unlock(); return -EINVAL; } @@ -2085,7 +2087,7 @@ static int macsec_add_txsa(struct sk_buff *skb, struct genl_info *info) cleanup: secy->operational = was_operational; - kfree(tx_sa); + macsec_txsa_put(tx_sa); rtnl_unlock(); return err; } @@ -2293,7 +2295,7 @@ static bool validate_upd_sa(struct nlattr **attrs) if (nla_get_u8(attrs[MACSEC_SA_ATTR_AN]) >= MACSEC_NUM_AN) return false; - if (attrs[MACSEC_SA_ATTR_PN] && nla_get_u32(attrs[MACSEC_SA_ATTR_PN]) == 0) + if (attrs[MACSEC_SA_ATTR_PN] && nla_get_u64(attrs[MACSEC_SA_ATTR_PN]) == 0) return false; if (attrs[MACSEC_SA_ATTR_ACTIVE]) { @@ -3745,9 +3747,6 @@ static int macsec_changelink_common(struct net_device *dev, secy->operational = tx_sa && tx_sa->active; } - if (data[IFLA_MACSEC_WINDOW]) - secy->replay_window = nla_get_u32(data[IFLA_MACSEC_WINDOW]); - if (data[IFLA_MACSEC_ENCRYPT]) tx_sc->encrypt = !!nla_get_u8(data[IFLA_MACSEC_ENCRYPT]); @@ -3793,6 +3792,16 @@ static int macsec_changelink_common(struct net_device *dev, } } + if (data[IFLA_MACSEC_WINDOW]) { + secy->replay_window = nla_get_u32(data[IFLA_MACSEC_WINDOW]); + + /* IEEE 802.1AEbw-2013 10.7.8 - maximum replay window + * for XPN cipher suites */ + if (secy->xpn && + secy->replay_window > MACSEC_XPN_MAX_REPLAY_WINDOW) + return -EINVAL; + } + return 0; } @@ -3822,7 +3831,7 @@ static int macsec_changelink(struct net_device *dev, struct nlattr *tb[], ret = macsec_changelink_common(dev, data); if (ret) - return ret; + goto cleanup; /* If h/w offloading is available, propagate to the device */ if (macsec_is_offloaded(macsec)) { diff --git a/drivers/net/pcs/pcs-xpcs.c b/drivers/net/pcs/pcs-xpcs.c index 61418d4dc0cd..8768f6e34846 100644 --- a/drivers/net/pcs/pcs-xpcs.c +++ b/drivers/net/pcs/pcs-xpcs.c @@ -898,7 +898,7 @@ static int xpcs_get_state_c37_sgmii(struct dw_xpcs *xpcs, */ ret = xpcs_read(xpcs, MDIO_MMD_VEND2, DW_VR_MII_AN_INTR_STS); if (ret < 0) - return false; + return ret; if (ret & DW_VR_MII_C37_ANSGM_SP_LNKSTS) { int speed_value; diff --git a/drivers/net/sungem_phy.c b/drivers/net/sungem_phy.c index 4daac5fda073..0d40d265b688 100644 --- a/drivers/net/sungem_phy.c +++ b/drivers/net/sungem_phy.c @@ -454,6 +454,7 @@ static int bcm5421_init(struct mii_phy* phy) int can_low_power = 1; if (np == NULL || of_get_property(np, "no-autolowpower", NULL)) can_low_power = 0; + of_node_put(np); if (can_low_power) { /* Enable automatic low-power */ sungem_phy_write(phy, 0x1c, 0x9002); diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index c7804fce204c..206904e60784 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -242,9 +242,15 @@ struct virtnet_info { /* Packet virtio header size */ u8 hdr_len; - /* Work struct for refilling if we run low on memory. */ + /* Work struct for delayed refilling if we run low on memory. */ struct delayed_work refill; + /* Is delayed refill enabled? */ + bool refill_enabled; + + /* The lock to synchronize the access to refill_enabled */ + spinlock_t refill_lock; + /* Work struct for config space updates */ struct work_struct config_work; @@ -348,6 +354,20 @@ static struct page *get_a_page(struct receive_queue *rq, gfp_t gfp_mask) return p; } +static void enable_delayed_refill(struct virtnet_info *vi) +{ + spin_lock_bh(&vi->refill_lock); + vi->refill_enabled = true; + spin_unlock_bh(&vi->refill_lock); +} + +static void disable_delayed_refill(struct virtnet_info *vi) +{ + spin_lock_bh(&vi->refill_lock); + vi->refill_enabled = false; + spin_unlock_bh(&vi->refill_lock); +} + static void virtqueue_napi_schedule(struct napi_struct *napi, struct virtqueue *vq) { @@ -1527,8 +1547,12 @@ static int virtnet_receive(struct receive_queue *rq, int budget, } if (rq->vq->num_free > min((unsigned int)budget, virtqueue_get_vring_size(rq->vq)) / 2) { - if (!try_fill_recv(vi, rq, GFP_ATOMIC)) - schedule_delayed_work(&vi->refill, 0); + if (!try_fill_recv(vi, rq, GFP_ATOMIC)) { + spin_lock(&vi->refill_lock); + if (vi->refill_enabled) + schedule_delayed_work(&vi->refill, 0); + spin_unlock(&vi->refill_lock); + } } u64_stats_update_begin(&rq->stats.syncp); @@ -1651,6 +1675,8 @@ static int virtnet_open(struct net_device *dev) struct virtnet_info *vi = netdev_priv(dev); int i, err; + enable_delayed_refill(vi); + for (i = 0; i < vi->max_queue_pairs; i++) { if (i < vi->curr_queue_pairs) /* Make sure we have some buffers: if oom use wq. */ @@ -2033,6 +2059,8 @@ static int virtnet_close(struct net_device *dev) struct virtnet_info *vi = netdev_priv(dev); int i; + /* Make sure NAPI doesn't schedule refill work */ + disable_delayed_refill(vi); /* Make sure refill_work doesn't re-enable napi! */ cancel_delayed_work_sync(&vi->refill); @@ -2792,6 +2820,8 @@ static int virtnet_restore_up(struct virtio_device *vdev) virtio_device_ready(vdev); + enable_delayed_refill(vi); + if (netif_running(vi->dev)) { err = virtnet_open(vi->dev); if (err) @@ -3534,6 +3564,7 @@ static int virtnet_probe(struct virtio_device *vdev) vdev->priv = vi; INIT_WORK(&vi->config_work, virtnet_config_changed_work); + spin_lock_init(&vi->refill_lock); /* If we can receive ANY GSO packets, we must allocate large ones. */ if (virtio_has_feature(vdev, VIRTIO_NET_F_GUEST_TSO4) || diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c index 7e476f50935b..f9e4b01cd0f5 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c +++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c @@ -11386,6 +11386,7 @@ scsih_shutdown(struct pci_dev *pdev) _scsih_ir_shutdown(ioc); _scsih_nvme_shutdown(ioc); mpt3sas_base_mask_interrupts(ioc); + mpt3sas_base_stop_watchdog(ioc); ioc->shost_recovery = 1; mpt3sas_base_make_ioc_ready(ioc, SOFT_RESET); ioc->shost_recovery = 0; diff --git a/drivers/scsi/scsi_ioctl.c b/drivers/scsi/scsi_ioctl.c index a480c4d589f5..729e309e6034 100644 --- a/drivers/scsi/scsi_ioctl.c +++ b/drivers/scsi/scsi_ioctl.c @@ -450,7 +450,7 @@ static int sg_io(struct scsi_device *sdev, struct sg_io_hdr *hdr, fmode_t mode) goto out_put_request; ret = 0; - if (hdr->iovec_count) { + if (hdr->iovec_count && hdr->dxfer_len) { struct iov_iter i; struct iovec *iov = NULL; diff --git a/drivers/scsi/ufs/ufshcd-pltfrm.c b/drivers/scsi/ufs/ufshcd-pltfrm.c index 87975d1a21c8..adc302b1a57a 100644 --- a/drivers/scsi/ufs/ufshcd-pltfrm.c +++ b/drivers/scsi/ufs/ufshcd-pltfrm.c @@ -107,9 +107,20 @@ out: return ret; } +static bool phandle_exists(const struct device_node *np, + const char *phandle_name, int index) +{ + struct device_node *parse_np = of_parse_phandle(np, phandle_name, index); + + if (parse_np) + of_node_put(parse_np); + + return parse_np != NULL; +} + #define MAX_PROP_SIZE 32 static int ufshcd_populate_vreg(struct device *dev, const char *name, - struct ufs_vreg **out_vreg) + struct ufs_vreg **out_vreg) { char prop_name[MAX_PROP_SIZE]; struct ufs_vreg *vreg = NULL; @@ -121,7 +132,7 @@ static int ufshcd_populate_vreg(struct device *dev, const char *name, } snprintf(prop_name, MAX_PROP_SIZE, "%s-supply", name); - if (!of_parse_phandle(np, prop_name, 0)) { + if (!phandle_exists(np, prop_name, 0)) { dev_info(dev, "%s: Unable to find %s regulator, assuming enabled\n", __func__, prop_name); goto out; diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 452ad0612067..874490f7f5e7 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -734,17 +734,28 @@ static enum utp_ocs ufshcd_get_tr_ocs(struct ufshcd_lrb *lrbp) } /** - * ufshcd_utrl_clear - Clear a bit in UTRLCLR register + * ufshcd_utrl_clear() - Clear requests from the controller request list. * @hba: per adapter instance - * @pos: position of the bit to be cleared + * @mask: mask with one bit set for each request to be cleared */ -static inline void ufshcd_utrl_clear(struct ufs_hba *hba, u32 pos) +static inline void ufshcd_utrl_clear(struct ufs_hba *hba, u32 mask) { if (hba->quirks & UFSHCI_QUIRK_BROKEN_REQ_LIST_CLR) - ufshcd_writel(hba, (1 << pos), REG_UTP_TRANSFER_REQ_LIST_CLEAR); - else - ufshcd_writel(hba, ~(1 << pos), - REG_UTP_TRANSFER_REQ_LIST_CLEAR); + mask = ~mask; + /* + * From the UFSHCI specification: "UTP Transfer Request List CLear + * Register (UTRLCLR): This field is bit significant. Each bit + * corresponds to a slot in the UTP Transfer Request List, where bit 0 + * corresponds to request slot 0. A bit in this field is set to ‘0’ + * by host software to indicate to the host controller that a transfer + * request slot is cleared. The host controller + * shall free up any resources associated to the request slot + * immediately, and shall set the associated bit in UTRLDBR to ‘0’. The + * host software indicates no change to request slots by setting the + * associated bits in this field to ‘1’. Bits in this field shall only + * be set ‘1’ or ‘0’ by host software when UTRLRSR is set to ‘1’." + */ + ufshcd_writel(hba, ~mask, REG_UTP_TRANSFER_REQ_LIST_CLEAR); } /** @@ -2853,16 +2864,19 @@ static int ufshcd_compose_dev_cmd(struct ufs_hba *hba, return ufshcd_compose_devman_upiu(hba, lrbp); } -static int -ufshcd_clear_cmd(struct ufs_hba *hba, int tag) +/* + * Clear all the requests from the controller for which a bit has been set in + * @mask and wait until the controller confirms that these requests have been + * cleared. + */ +static int ufshcd_clear_cmds(struct ufs_hba *hba, u32 mask) { int err = 0; unsigned long flags; - u32 mask = 1 << tag; /* clear outstanding transaction before retry */ spin_lock_irqsave(hba->host->host_lock, flags); - ufshcd_utrl_clear(hba, tag); + ufshcd_utrl_clear(hba, mask); spin_unlock_irqrestore(hba->host->host_lock, flags); /* @@ -2933,37 +2947,59 @@ ufshcd_dev_cmd_completion(struct ufs_hba *hba, struct ufshcd_lrb *lrbp) static int ufshcd_wait_for_dev_cmd(struct ufs_hba *hba, struct ufshcd_lrb *lrbp, int max_timeout) { - int err = 0; - unsigned long time_left; + unsigned long time_left = msecs_to_jiffies(max_timeout); unsigned long flags; + bool pending; + int err; +retry: time_left = wait_for_completion_timeout(hba->dev_cmd.complete, - msecs_to_jiffies(max_timeout)); + time_left); - spin_lock_irqsave(hba->host->host_lock, flags); - hba->dev_cmd.complete = NULL; if (likely(time_left)) { + /* + * The completion handler called complete() and the caller of + * this function still owns the @lrbp tag so the code below does + * not trigger any race conditions. + */ + hba->dev_cmd.complete = NULL; err = ufshcd_get_tr_ocs(lrbp); if (!err) err = ufshcd_dev_cmd_completion(hba, lrbp); - } - spin_unlock_irqrestore(hba->host->host_lock, flags); - - if (!time_left) { + } else { err = -ETIMEDOUT; dev_dbg(hba->dev, "%s: dev_cmd request timedout, tag %d\n", __func__, lrbp->task_tag); - if (!ufshcd_clear_cmd(hba, lrbp->task_tag)) + if (ufshcd_clear_cmds(hba, 1U << lrbp->task_tag) == 0) { /* successfully cleared the command, retry if needed */ err = -EAGAIN; - /* - * in case of an error, after clearing the doorbell, - * we also need to clear the outstanding_request - * field in hba - */ - spin_lock_irqsave(&hba->outstanding_lock, flags); - __clear_bit(lrbp->task_tag, &hba->outstanding_reqs); - spin_unlock_irqrestore(&hba->outstanding_lock, flags); + /* + * Since clearing the command succeeded we also need to + * clear the task tag bit from the outstanding_reqs + * variable. + */ + spin_lock_irqsave(&hba->outstanding_lock, flags); + pending = test_bit(lrbp->task_tag, + &hba->outstanding_reqs); + if (pending) { + hba->dev_cmd.complete = NULL; + __clear_bit(lrbp->task_tag, + &hba->outstanding_reqs); + } + spin_unlock_irqrestore(&hba->outstanding_lock, flags); + + if (!pending) { + /* + * The completion handler ran while we tried to + * clear the command. + */ + time_left = 1; + goto retry; + } + } else { + dev_err(hba->dev, "%s: failed to clear tag %d\n", + __func__, lrbp->task_tag); + } } return err; @@ -6988,7 +7024,7 @@ static int ufshcd_eh_device_reset_handler(struct scsi_cmnd *cmd) /* clear the commands that were pending for corresponding LUN */ for_each_set_bit(pos, &hba->outstanding_reqs, hba->nutrs) { if (hba->lrb[pos].lun == lun) { - err = ufshcd_clear_cmd(hba, pos); + err = ufshcd_clear_cmds(hba, 1U << pos); if (err) break; __ufshcd_transfer_req_compl(hba, 1U << pos); @@ -7090,7 +7126,7 @@ static int ufshcd_try_to_abort_task(struct ufs_hba *hba, int tag) goto out; } - err = ufshcd_clear_cmd(hba, tag); + err = ufshcd_clear_cmds(hba, 1U << tag); if (err) dev_err(hba->dev, "%s: Failed clearing cmd at tag %d, err %d\n", __func__, tag, err); |