diff options
Diffstat (limited to 'drivers/net/ethernet')
30 files changed, 404 insertions, 182 deletions
diff --git a/drivers/net/ethernet/atheros/atlx/atl2.c b/drivers/net/ethernet/atheros/atlx/atl2.c index 8f76f4558a88..2ff465848b65 100644 --- a/drivers/net/ethernet/atheros/atlx/atl2.c +++ b/drivers/net/ethernet/atheros/atlx/atl2.c @@ -1412,7 +1412,7 @@ static int atl2_probe(struct pci_dev *pdev, const struct pci_device_id *ent) err = -EIO; - netdev->hw_features = NETIF_F_SG | NETIF_F_HW_VLAN_CTAG_RX; + netdev->hw_features = NETIF_F_HW_VLAN_CTAG_RX; netdev->features |= (NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX); /* Init PHY as early as possible due to power saving issue */ diff --git a/drivers/net/ethernet/broadcom/bgmac.c b/drivers/net/ethernet/broadcom/bgmac.c index 99b30a952b38..38db2e4d7d54 100644 --- a/drivers/net/ethernet/broadcom/bgmac.c +++ b/drivers/net/ethernet/broadcom/bgmac.c @@ -1572,6 +1572,11 @@ static int bgmac_probe(struct bcma_device *core) dev_warn(&core->dev, "Using random MAC: %pM\n", mac); } + /* This (reset &) enable is not preset in specs or reference driver but + * Broadcom does it in arch PCI code when enabling fake PCI device. + */ + bcma_core_enable(core, 0); + /* Allocation and references */ net_dev = alloc_etherdev(sizeof(*bgmac)); if (!net_dev) diff --git a/drivers/net/ethernet/broadcom/bgmac.h b/drivers/net/ethernet/broadcom/bgmac.h index 4fbb093e0d84..9a03c142b742 100644 --- a/drivers/net/ethernet/broadcom/bgmac.h +++ b/drivers/net/ethernet/broadcom/bgmac.h @@ -199,9 +199,9 @@ #define BGMAC_CMDCFG_TAI 0x00000200 #define BGMAC_CMDCFG_HD 0x00000400 /* Set if in half duplex mode */ #define BGMAC_CMDCFG_HD_SHIFT 10 -#define BGMAC_CMDCFG_SR_REV0 0x00000800 /* Set to reset mode, for other revs */ -#define BGMAC_CMDCFG_SR_REV4 0x00002000 /* Set to reset mode, only for core rev 4 */ -#define BGMAC_CMDCFG_SR(rev) ((rev == 4) ? BGMAC_CMDCFG_SR_REV4 : BGMAC_CMDCFG_SR_REV0) +#define BGMAC_CMDCFG_SR_REV0 0x00000800 /* Set to reset mode, for core rev 0-3 */ +#define BGMAC_CMDCFG_SR_REV4 0x00002000 /* Set to reset mode, for core rev >= 4 */ +#define BGMAC_CMDCFG_SR(rev) ((rev >= 4) ? BGMAC_CMDCFG_SR_REV4 : BGMAC_CMDCFG_SR_REV0) #define BGMAC_CMDCFG_ML 0x00008000 /* Set to activate mac loopback mode */ #define BGMAC_CMDCFG_AE 0x00400000 #define BGMAC_CMDCFG_CFE 0x00800000 diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c index cf6445d148ca..44ad1490b472 100644 --- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c +++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c @@ -878,7 +878,11 @@ static void bcmgenet_get_ethtool_stats(struct net_device *dev, else p = (char *)priv; p += s->stat_offset; - data[i] = *(u32 *)p; + if (sizeof(unsigned long) != sizeof(u32) && + s->stat_sizeof == sizeof(unsigned long)) + data[i] = *(unsigned long *)p; + else + data[i] = *(u32 *)p; } } diff --git a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c index 967951582e03..d20539a6d162 100644 --- a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c +++ b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c @@ -1011,10 +1011,11 @@ static int bgx_init_of_phy(struct bgx *bgx) } lmac++; - if (lmac == MAX_LMAC_PER_BGX) + if (lmac == MAX_LMAC_PER_BGX) { + of_node_put(node); break; + } } - of_node_put(node); return 0; defer: diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h index 984a3cc26f86..326d4009525e 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h @@ -1451,6 +1451,9 @@ int t4_mdio_rd(struct adapter *adap, unsigned int mbox, unsigned int phy_addr, unsigned int mmd, unsigned int reg, u16 *valp); int t4_mdio_wr(struct adapter *adap, unsigned int mbox, unsigned int phy_addr, unsigned int mmd, unsigned int reg, u16 val); +int t4_iq_stop(struct adapter *adap, unsigned int mbox, unsigned int pf, + unsigned int vf, unsigned int iqtype, unsigned int iqid, + unsigned int fl0id, unsigned int fl1id); int t4_iq_free(struct adapter *adap, unsigned int mbox, unsigned int pf, unsigned int vf, unsigned int iqtype, unsigned int iqid, unsigned int fl0id, unsigned int fl1id); diff --git a/drivers/net/ethernet/chelsio/cxgb4/sge.c b/drivers/net/ethernet/chelsio/cxgb4/sge.c index 13b144bcf725..6278e5a74b74 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/sge.c +++ b/drivers/net/ethernet/chelsio/cxgb4/sge.c @@ -2981,14 +2981,28 @@ void t4_free_ofld_rxqs(struct adapter *adap, int n, struct sge_ofld_rxq *q) void t4_free_sge_resources(struct adapter *adap) { int i; - struct sge_eth_rxq *eq = adap->sge.ethrxq; - struct sge_eth_txq *etq = adap->sge.ethtxq; + struct sge_eth_rxq *eq; + struct sge_eth_txq *etq; + + /* stop all Rx queues in order to start them draining */ + for (i = 0; i < adap->sge.ethqsets; i++) { + eq = &adap->sge.ethrxq[i]; + if (eq->rspq.desc) + t4_iq_stop(adap, adap->mbox, adap->pf, 0, + FW_IQ_TYPE_FL_INT_CAP, + eq->rspq.cntxt_id, + eq->fl.size ? eq->fl.cntxt_id : 0xffff, + 0xffff); + } /* clean up Ethernet Tx/Rx queues */ - for (i = 0; i < adap->sge.ethqsets; i++, eq++, etq++) { + for (i = 0; i < adap->sge.ethqsets; i++) { + eq = &adap->sge.ethrxq[i]; if (eq->rspq.desc) free_rspq_fl(adap, &eq->rspq, eq->fl.size ? &eq->fl : NULL); + + etq = &adap->sge.ethtxq[i]; if (etq->q.desc) { t4_eth_eq_free(adap, adap->mbox, adap->pf, 0, etq->q.cntxt_id); diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c index cc1736bece0f..71586a3e0f61 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c +++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c @@ -2557,6 +2557,7 @@ void t4_get_regs(struct adapter *adap, void *buf, size_t buf_size) } #define EEPROM_STAT_ADDR 0x7bfc +#define VPD_SIZE 0x800 #define VPD_BASE 0x400 #define VPD_BASE_OLD 0 #define VPD_LEN 1024 @@ -2594,6 +2595,15 @@ int t4_get_raw_vpd_params(struct adapter *adapter, struct vpd_params *p) if (!vpd) return -ENOMEM; + /* We have two VPD data structures stored in the adapter VPD area. + * By default, Linux calculates the size of the VPD area by traversing + * the first VPD area at offset 0x0, so we need to tell the OS what + * our real VPD size is. + */ + ret = pci_set_vpd_size(adapter->pdev, VPD_SIZE); + if (ret < 0) + goto out; + /* Card information normally starts at VPD_BASE but early cards had * it at 0. */ @@ -6940,6 +6950,39 @@ int t4_identify_port(struct adapter *adap, unsigned int mbox, unsigned int viid, } /** + * t4_iq_stop - stop an ingress queue and its FLs + * @adap: the adapter + * @mbox: mailbox to use for the FW command + * @pf: the PF owning the queues + * @vf: the VF owning the queues + * @iqtype: the ingress queue type (FW_IQ_TYPE_FL_INT_CAP, etc.) + * @iqid: ingress queue id + * @fl0id: FL0 queue id or 0xffff if no attached FL0 + * @fl1id: FL1 queue id or 0xffff if no attached FL1 + * + * Stops an ingress queue and its associated FLs, if any. This causes + * any current or future data/messages destined for these queues to be + * tossed. + */ +int t4_iq_stop(struct adapter *adap, unsigned int mbox, unsigned int pf, + unsigned int vf, unsigned int iqtype, unsigned int iqid, + unsigned int fl0id, unsigned int fl1id) +{ + struct fw_iq_cmd c; + + memset(&c, 0, sizeof(c)); + c.op_to_vfn = cpu_to_be32(FW_CMD_OP_V(FW_IQ_CMD) | FW_CMD_REQUEST_F | + FW_CMD_EXEC_F | FW_IQ_CMD_PFN_V(pf) | + FW_IQ_CMD_VFN_V(vf)); + c.alloc_to_len16 = cpu_to_be32(FW_IQ_CMD_IQSTOP_F | FW_LEN16(c)); + c.type_to_iqandstindex = cpu_to_be32(FW_IQ_CMD_TYPE_V(iqtype)); + c.iqid = cpu_to_be16(iqid); + c.fl0id = cpu_to_be16(fl0id); + c.fl1id = cpu_to_be16(fl1id); + return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL); +} + +/** * t4_iq_free - free an ingress queue and its FLs * @adap: the adapter * @mbox: mailbox to use for the FW command diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_pci_id_tbl.h b/drivers/net/ethernet/chelsio/cxgb4/t4_pci_id_tbl.h index 06bc2d2e7a73..a2cdfc1261dc 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/t4_pci_id_tbl.h +++ b/drivers/net/ethernet/chelsio/cxgb4/t4_pci_id_tbl.h @@ -166,6 +166,7 @@ CH_PCI_DEVICE_ID_TABLE_DEFINE_BEGIN CH_PCI_ID_TABLE_FENTRY(0x5099), /* Custom 2x40G QSFP */ CH_PCI_ID_TABLE_FENTRY(0x509a), /* Custom T520-CR */ CH_PCI_ID_TABLE_FENTRY(0x509b), /* Custom T540-CR LOM */ + CH_PCI_ID_TABLE_FENTRY(0x509c), /* Custom T520-CR*/ /* T6 adapters: */ diff --git a/drivers/net/ethernet/intel/e1000/e1000_main.c b/drivers/net/ethernet/intel/e1000/e1000_main.c index 3fc7bde699ba..ae90d4f12b70 100644 --- a/drivers/net/ethernet/intel/e1000/e1000_main.c +++ b/drivers/net/ethernet/intel/e1000/e1000_main.c @@ -3106,7 +3106,7 @@ static int e1000_maybe_stop_tx(struct net_device *netdev, return __e1000_maybe_stop_tx(netdev, size); } -#define TXD_USE_COUNT(S, X) (((S) >> (X)) + 1) +#define TXD_USE_COUNT(S, X) (((S) + ((1 << (X)) - 1)) >> (X)) static netdev_tx_t e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev) { @@ -3256,12 +3256,29 @@ static netdev_tx_t e1000_xmit_frame(struct sk_buff *skb, nr_frags, mss); if (count) { + /* The descriptors needed is higher than other Intel drivers + * due to a number of workarounds. The breakdown is below: + * Data descriptors: MAX_SKB_FRAGS + 1 + * Context Descriptor: 1 + * Keep head from touching tail: 2 + * Workarounds: 3 + */ + int desc_needed = MAX_SKB_FRAGS + 7; + netdev_sent_queue(netdev, skb->len); skb_tx_timestamp(skb); e1000_tx_queue(adapter, tx_ring, tx_flags, count); + + /* 82544 potentially requires twice as many data descriptors + * in order to guarantee buffers don't end on evenly-aligned + * dwords + */ + if (adapter->pcix_82544) + desc_needed += MAX_SKB_FRAGS + 1; + /* Make sure there is space in the ring for the next send. */ - e1000_maybe_stop_tx(netdev, tx_ring, MAX_SKB_FRAGS + 2); + e1000_maybe_stop_tx(netdev, tx_ring, desc_needed); if (!skb->xmit_more || netif_xmit_stopped(netdev_get_tx_queue(netdev, 0))) { diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_pf.c b/drivers/net/ethernet/intel/fm10k/fm10k_pf.c index 62ccebc5f728..8cf943db5662 100644 --- a/drivers/net/ethernet/intel/fm10k/fm10k_pf.c +++ b/drivers/net/ethernet/intel/fm10k/fm10k_pf.c @@ -1223,18 +1223,32 @@ s32 fm10k_iov_msg_mac_vlan_pf(struct fm10k_hw *hw, u32 **results, if (err) return err; - /* verify upper 16 bits are zero */ - if (vid >> 16) - return FM10K_ERR_PARAM; - set = !(vid & FM10K_VLAN_CLEAR); vid &= ~FM10K_VLAN_CLEAR; - err = fm10k_iov_select_vid(vf_info, (u16)vid); - if (err < 0) - return err; + /* if the length field has been set, this is a multi-bit + * update request. For multi-bit requests, simply disallow + * them when the pf_vid has been set. In this case, the PF + * should have already cleared the VLAN_TABLE, and if we + * allowed them, it could allow a rogue VF to receive traffic + * on a VLAN it was not assigned. In the single-bit case, we + * need to modify requests for VLAN 0 to use the default PF or + * SW vid when assigned. + */ - vid = err; + if (vid >> 16) { + /* prevent multi-bit requests when PF has + * administratively set the VLAN for this VF + */ + if (vf_info->pf_vid) + return FM10K_ERR_PARAM; + } else { + err = fm10k_iov_select_vid(vf_info, (u16)vid); + if (err < 0) + return err; + + vid = err; + } /* update VSI info for VF in regards to VLAN table */ err = hw->mac.ops.update_vlan(hw, vid, vf_info->vsi, set); diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c index 67006431726a..344912957cab 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -8559,6 +8559,7 @@ static int i40e_sw_init(struct i40e_pf *pf) I40E_FLAG_OUTER_UDP_CSUM_CAPABLE | I40E_FLAG_WB_ON_ITR_CAPABLE | I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE | + I40E_FLAG_NO_PCI_LINK_CHECK | I40E_FLAG_100M_SGMII_CAPABLE | I40E_FLAG_USE_SET_LLDP_MIB | I40E_FLAG_GENEVE_OFFLOAD_CAPABLE; diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c index 084d0ab316b7..6a49b7ae511c 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c +++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c @@ -2594,35 +2594,34 @@ int __i40e_maybe_stop_tx(struct i40e_ring *tx_ring, int size) } /** - * __i40e_chk_linearize - Check if there are more than 8 fragments per packet + * __i40e_chk_linearize - Check if there are more than 8 buffers per packet * @skb: send buffer * - * Note: Our HW can't scatter-gather more than 8 fragments to build - * a packet on the wire and so we need to figure out the cases where we - * need to linearize the skb. + * Note: Our HW can't DMA more than 8 buffers to build a packet on the wire + * and so we need to figure out the cases where we need to linearize the skb. + * + * For TSO we need to count the TSO header and segment payload separately. + * As such we need to check cases where we have 7 fragments or more as we + * can potentially require 9 DMA transactions, 1 for the TSO header, 1 for + * the segment payload in the first descriptor, and another 7 for the + * fragments. **/ bool __i40e_chk_linearize(struct sk_buff *skb) { const struct skb_frag_struct *frag, *stale; - int gso_size, nr_frags, sum; - - /* check to see if TSO is enabled, if so we may get a repreive */ - gso_size = skb_shinfo(skb)->gso_size; - if (unlikely(!gso_size)) - return true; + int nr_frags, sum; - /* no need to check if number of frags is less than 8 */ + /* no need to check if number of frags is less than 7 */ nr_frags = skb_shinfo(skb)->nr_frags; - if (nr_frags < I40E_MAX_BUFFER_TXD) + if (nr_frags < (I40E_MAX_BUFFER_TXD - 1)) return false; /* We need to walk through the list and validate that each group * of 6 fragments totals at least gso_size. However we don't need - * to perform such validation on the first or last 6 since the first - * 6 cannot inherit any data from a descriptor before them, and the - * last 6 cannot inherit any data from a descriptor after them. + * to perform such validation on the last 6 since the last 6 cannot + * inherit any data from a descriptor after them. */ - nr_frags -= I40E_MAX_BUFFER_TXD - 1; + nr_frags -= I40E_MAX_BUFFER_TXD - 2; frag = &skb_shinfo(skb)->frags[0]; /* Initialize size to the negative value of gso_size minus 1. We @@ -2631,21 +2630,21 @@ bool __i40e_chk_linearize(struct sk_buff *skb) * descriptors for a single transmit as the header and previous * fragment are already consuming 2 descriptors. */ - sum = 1 - gso_size; + sum = 1 - skb_shinfo(skb)->gso_size; - /* Add size of frags 1 through 5 to create our initial sum */ - sum += skb_frag_size(++frag); - sum += skb_frag_size(++frag); - sum += skb_frag_size(++frag); - sum += skb_frag_size(++frag); - sum += skb_frag_size(++frag); + /* Add size of frags 0 through 4 to create our initial sum */ + sum += skb_frag_size(frag++); + sum += skb_frag_size(frag++); + sum += skb_frag_size(frag++); + sum += skb_frag_size(frag++); + sum += skb_frag_size(frag++); /* Walk through fragments adding latest fragment, testing it, and * then removing stale fragments from the sum. */ stale = &skb_shinfo(skb)->frags[0]; for (;;) { - sum += skb_frag_size(++frag); + sum += skb_frag_size(frag++); /* if sum is negative we failed to make sufficient progress */ if (sum < 0) @@ -2655,7 +2654,7 @@ bool __i40e_chk_linearize(struct sk_buff *skb) if (!--nr_frags) break; - sum -= skb_frag_size(++stale); + sum -= skb_frag_size(stale++); } return false; diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.h b/drivers/net/ethernet/intel/i40e/i40e_txrx.h index cdd5dc00aec5..a9bd70537d65 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_txrx.h +++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.h @@ -413,10 +413,14 @@ static inline int i40e_maybe_stop_tx(struct i40e_ring *tx_ring, int size) **/ static inline bool i40e_chk_linearize(struct sk_buff *skb, int count) { - /* we can only support up to 8 data buffers for a single send */ - if (likely(count <= I40E_MAX_BUFFER_TXD)) + /* Both TSO and single send will work if count is less than 8 */ + if (likely(count < I40E_MAX_BUFFER_TXD)) return false; - return __i40e_chk_linearize(skb); + if (skb_is_gso(skb)) + return __i40e_chk_linearize(skb); + + /* we can support up to 8 data buffers for a single send */ + return count != I40E_MAX_BUFFER_TXD; } #endif /* _I40E_TXRX_H_ */ diff --git a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c index ebcc25c05796..cea97daa844c 100644 --- a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c +++ b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c @@ -1796,35 +1796,34 @@ static void i40e_create_tx_ctx(struct i40e_ring *tx_ring, } /** - * __i40evf_chk_linearize - Check if there are more than 8 fragments per packet + * __i40evf_chk_linearize - Check if there are more than 8 buffers per packet * @skb: send buffer * - * Note: Our HW can't scatter-gather more than 8 fragments to build - * a packet on the wire and so we need to figure out the cases where we - * need to linearize the skb. + * Note: Our HW can't DMA more than 8 buffers to build a packet on the wire + * and so we need to figure out the cases where we need to linearize the skb. + * + * For TSO we need to count the TSO header and segment payload separately. + * As such we need to check cases where we have 7 fragments or more as we + * can potentially require 9 DMA transactions, 1 for the TSO header, 1 for + * the segment payload in the first descriptor, and another 7 for the + * fragments. **/ bool __i40evf_chk_linearize(struct sk_buff *skb) { const struct skb_frag_struct *frag, *stale; - int gso_size, nr_frags, sum; - - /* check to see if TSO is enabled, if so we may get a repreive */ - gso_size = skb_shinfo(skb)->gso_size; - if (unlikely(!gso_size)) - return true; + int nr_frags, sum; - /* no need to check if number of frags is less than 8 */ + /* no need to check if number of frags is less than 7 */ nr_frags = skb_shinfo(skb)->nr_frags; - if (nr_frags < I40E_MAX_BUFFER_TXD) + if (nr_frags < (I40E_MAX_BUFFER_TXD - 1)) return false; /* We need to walk through the list and validate that each group * of 6 fragments totals at least gso_size. However we don't need - * to perform such validation on the first or last 6 since the first - * 6 cannot inherit any data from a descriptor before them, and the - * last 6 cannot inherit any data from a descriptor after them. + * to perform such validation on the last 6 since the last 6 cannot + * inherit any data from a descriptor after them. */ - nr_frags -= I40E_MAX_BUFFER_TXD - 1; + nr_frags -= I40E_MAX_BUFFER_TXD - 2; frag = &skb_shinfo(skb)->frags[0]; /* Initialize size to the negative value of gso_size minus 1. We @@ -1833,21 +1832,21 @@ bool __i40evf_chk_linearize(struct sk_buff *skb) * descriptors for a single transmit as the header and previous * fragment are already consuming 2 descriptors. */ - sum = 1 - gso_size; + sum = 1 - skb_shinfo(skb)->gso_size; - /* Add size of frags 1 through 5 to create our initial sum */ - sum += skb_frag_size(++frag); - sum += skb_frag_size(++frag); - sum += skb_frag_size(++frag); - sum += skb_frag_size(++frag); - sum += skb_frag_size(++frag); + /* Add size of frags 0 through 4 to create our initial sum */ + sum += skb_frag_size(frag++); + sum += skb_frag_size(frag++); + sum += skb_frag_size(frag++); + sum += skb_frag_size(frag++); + sum += skb_frag_size(frag++); /* Walk through fragments adding latest fragment, testing it, and * then removing stale fragments from the sum. */ stale = &skb_shinfo(skb)->frags[0]; for (;;) { - sum += skb_frag_size(++frag); + sum += skb_frag_size(frag++); /* if sum is negative we failed to make sufficient progress */ if (sum < 0) @@ -1857,7 +1856,7 @@ bool __i40evf_chk_linearize(struct sk_buff *skb) if (!--nr_frags) break; - sum -= skb_frag_size(++stale); + sum -= skb_frag_size(stale++); } return false; diff --git a/drivers/net/ethernet/intel/i40evf/i40e_txrx.h b/drivers/net/ethernet/intel/i40evf/i40e_txrx.h index c1dd8c5c9666..0429553fe887 100644 --- a/drivers/net/ethernet/intel/i40evf/i40e_txrx.h +++ b/drivers/net/ethernet/intel/i40evf/i40e_txrx.h @@ -395,10 +395,14 @@ static inline int i40e_maybe_stop_tx(struct i40e_ring *tx_ring, int size) **/ static inline bool i40e_chk_linearize(struct sk_buff *skb, int count) { - /* we can only support up to 8 data buffers for a single send */ - if (likely(count <= I40E_MAX_BUFFER_TXD)) + /* Both TSO and single send will work if count is less than 8 */ + if (likely(count < I40E_MAX_BUFFER_TXD)) return false; - return __i40evf_chk_linearize(skb); + if (skb_is_gso(skb)) + return __i40evf_chk_linearize(skb); + + /* we can support up to 8 data buffers for a single send */ + return count != I40E_MAX_BUFFER_TXD; } #endif /* _I40E_TXRX_H_ */ diff --git a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c index f69584a9b47f..c761194bb323 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c @@ -337,7 +337,7 @@ static int mlx4_en_get_sset_count(struct net_device *dev, int sset) case ETH_SS_STATS: return bitmap_iterator_count(&it) + (priv->tx_ring_num * 2) + - (priv->rx_ring_num * 2); + (priv->rx_ring_num * 3); case ETH_SS_TEST: return MLX4_EN_NUM_SELF_TEST - !(priv->mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UC_LOOPBACK) * 2; @@ -404,6 +404,7 @@ static void mlx4_en_get_ethtool_stats(struct net_device *dev, for (i = 0; i < priv->rx_ring_num; i++) { data[index++] = priv->rx_ring[i]->packets; data[index++] = priv->rx_ring[i]->bytes; + data[index++] = priv->rx_ring[i]->dropped; } spin_unlock_bh(&priv->stats_lock); @@ -477,6 +478,8 @@ static void mlx4_en_get_strings(struct net_device *dev, "rx%d_packets", i); sprintf(data + (index++) * ETH_GSTRING_LEN, "rx%d_bytes", i); + sprintf(data + (index++) * ETH_GSTRING_LEN, + "rx%d_dropped", i); } break; case ETH_SS_PRIV_FLAGS: diff --git a/drivers/net/ethernet/mellanox/mlx4/en_port.c b/drivers/net/ethernet/mellanox/mlx4/en_port.c index 3904b5fc0b7c..20b6c2e678b8 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_port.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_port.c @@ -158,6 +158,7 @@ int mlx4_en_DUMP_ETH_STATS(struct mlx4_en_dev *mdev, u8 port, u8 reset) u64 in_mod = reset << 8 | port; int err; int i, counter_index; + unsigned long sw_rx_dropped = 0; mailbox = mlx4_alloc_cmd_mailbox(mdev->dev); if (IS_ERR(mailbox)) @@ -180,6 +181,7 @@ int mlx4_en_DUMP_ETH_STATS(struct mlx4_en_dev *mdev, u8 port, u8 reset) for (i = 0; i < priv->rx_ring_num; i++) { stats->rx_packets += priv->rx_ring[i]->packets; stats->rx_bytes += priv->rx_ring[i]->bytes; + sw_rx_dropped += priv->rx_ring[i]->dropped; priv->port_stats.rx_chksum_good += priv->rx_ring[i]->csum_ok; priv->port_stats.rx_chksum_none += priv->rx_ring[i]->csum_none; priv->port_stats.rx_chksum_complete += priv->rx_ring[i]->csum_complete; @@ -236,7 +238,8 @@ int mlx4_en_DUMP_ETH_STATS(struct mlx4_en_dev *mdev, u8 port, u8 reset) &mlx4_en_stats->MCAST_prio_1, NUM_PRIORITIES); stats->collisions = 0; - stats->rx_dropped = be32_to_cpu(mlx4_en_stats->RDROP); + stats->rx_dropped = be32_to_cpu(mlx4_en_stats->RDROP) + + sw_rx_dropped; stats->rx_length_errors = be32_to_cpu(mlx4_en_stats->RdropLength); stats->rx_over_errors = 0; stats->rx_crc_errors = be32_to_cpu(mlx4_en_stats->RCRC); diff --git a/drivers/net/ethernet/mellanox/mlx4/en_rx.c b/drivers/net/ethernet/mellanox/mlx4/en_rx.c index 86bcfe510e4e..b723e3bcab39 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_rx.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_rx.c @@ -61,7 +61,7 @@ static int mlx4_alloc_pages(struct mlx4_en_priv *priv, gfp_t gfp = _gfp; if (order) - gfp |= __GFP_COMP | __GFP_NOWARN; + gfp |= __GFP_COMP | __GFP_NOWARN | __GFP_NOMEMALLOC; page = alloc_pages(gfp, order); if (likely(page)) break; @@ -126,7 +126,9 @@ out: dma_unmap_page(priv->ddev, page_alloc[i].dma, page_alloc[i].page_size, PCI_DMA_FROMDEVICE); page = page_alloc[i].page; - set_page_count(page, 1); + /* Revert changes done by mlx4_alloc_pages */ + page_ref_sub(page, page_alloc[i].page_size / + priv->frag_info[i].frag_stride - 1); put_page(page); } } @@ -176,7 +178,9 @@ out: dma_unmap_page(priv->ddev, page_alloc->dma, page_alloc->page_size, PCI_DMA_FROMDEVICE); page = page_alloc->page; - set_page_count(page, 1); + /* Revert changes done by mlx4_alloc_pages */ + page_ref_sub(page, page_alloc->page_size / + priv->frag_info[i].frag_stride - 1); put_page(page); page_alloc->page = NULL; } @@ -939,7 +943,7 @@ int mlx4_en_process_rx_cq(struct net_device *dev, struct mlx4_en_cq *cq, int bud /* GRO not possible, complete processing here */ skb = mlx4_en_rx_skb(priv, rx_desc, frags, length); if (!skb) { - priv->stats.rx_dropped++; + ring->dropped++; goto next; } diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c index 358f7230da58..12c77a70abdb 100644 --- a/drivers/net/ethernet/mellanox/mlx4/main.c +++ b/drivers/net/ethernet/mellanox/mlx4/main.c @@ -3172,6 +3172,34 @@ static int mlx4_check_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap return 0; } +static int mlx4_pci_enable_device(struct mlx4_dev *dev) +{ + struct pci_dev *pdev = dev->persist->pdev; + int err = 0; + + mutex_lock(&dev->persist->pci_status_mutex); + if (dev->persist->pci_status == MLX4_PCI_STATUS_DISABLED) { + err = pci_enable_device(pdev); + if (!err) + dev->persist->pci_status = MLX4_PCI_STATUS_ENABLED; + } + mutex_unlock(&dev->persist->pci_status_mutex); + + return err; +} + +static void mlx4_pci_disable_device(struct mlx4_dev *dev) +{ + struct pci_dev *pdev = dev->persist->pdev; + + mutex_lock(&dev->persist->pci_status_mutex); + if (dev->persist->pci_status == MLX4_PCI_STATUS_ENABLED) { + pci_disable_device(pdev); + dev->persist->pci_status = MLX4_PCI_STATUS_DISABLED; + } + mutex_unlock(&dev->persist->pci_status_mutex); +} + static int mlx4_load_one(struct pci_dev *pdev, int pci_dev_data, int total_vfs, int *nvfs, struct mlx4_priv *priv, int reset_flow) @@ -3582,7 +3610,7 @@ static int __mlx4_init_one(struct pci_dev *pdev, int pci_dev_data, pr_info(DRV_NAME ": Initializing %s\n", pci_name(pdev)); - err = pci_enable_device(pdev); + err = mlx4_pci_enable_device(&priv->dev); if (err) { dev_err(&pdev->dev, "Cannot enable PCI device, aborting\n"); return err; @@ -3715,7 +3743,7 @@ err_release_regions: pci_release_regions(pdev); err_disable_pdev: - pci_disable_device(pdev); + mlx4_pci_disable_device(&priv->dev); pci_set_drvdata(pdev, NULL); return err; } @@ -3775,6 +3803,7 @@ static int mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id) priv->pci_dev_data = id->driver_data; mutex_init(&dev->persist->device_state_mutex); mutex_init(&dev->persist->interface_state_mutex); + mutex_init(&dev->persist->pci_status_mutex); ret = devlink_register(devlink, &pdev->dev); if (ret) @@ -3923,7 +3952,7 @@ static void mlx4_remove_one(struct pci_dev *pdev) } pci_release_regions(pdev); - pci_disable_device(pdev); + mlx4_pci_disable_device(dev); devlink_unregister(devlink); kfree(dev->persist); devlink_free(devlink); @@ -4042,7 +4071,7 @@ static pci_ers_result_t mlx4_pci_err_detected(struct pci_dev *pdev, if (state == pci_channel_io_perm_failure) return PCI_ERS_RESULT_DISCONNECT; - pci_disable_device(pdev); + mlx4_pci_disable_device(persist->dev); return PCI_ERS_RESULT_NEED_RESET; } @@ -4050,45 +4079,53 @@ static pci_ers_result_t mlx4_pci_slot_reset(struct pci_dev *pdev) { struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev); struct mlx4_dev *dev = persist->dev; - struct mlx4_priv *priv = mlx4_priv(dev); - int ret; - int nvfs[MLX4_MAX_PORTS + 1] = {0, 0, 0}; - int total_vfs; + int err; mlx4_err(dev, "mlx4_pci_slot_reset was called\n"); - ret = pci_enable_device(pdev); - if (ret) { - mlx4_err(dev, "Can not re-enable device, ret=%d\n", ret); + err = mlx4_pci_enable_device(dev); + if (err) { + mlx4_err(dev, "Can not re-enable device, err=%d\n", err); return PCI_ERS_RESULT_DISCONNECT; } pci_set_master(pdev); pci_restore_state(pdev); pci_save_state(pdev); + return PCI_ERS_RESULT_RECOVERED; +} +static void mlx4_pci_resume(struct pci_dev *pdev) +{ + struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev); + struct mlx4_dev *dev = persist->dev; + struct mlx4_priv *priv = mlx4_priv(dev); + int nvfs[MLX4_MAX_PORTS + 1] = {0, 0, 0}; + int total_vfs; + int err; + + mlx4_err(dev, "%s was called\n", __func__); total_vfs = dev->persist->num_vfs; memcpy(nvfs, dev->persist->nvfs, sizeof(dev->persist->nvfs)); mutex_lock(&persist->interface_state_mutex); if (!(persist->interface_state & MLX4_INTERFACE_STATE_UP)) { - ret = mlx4_load_one(pdev, priv->pci_dev_data, total_vfs, nvfs, + err = mlx4_load_one(pdev, priv->pci_dev_data, total_vfs, nvfs, priv, 1); - if (ret) { - mlx4_err(dev, "%s: mlx4_load_one failed, ret=%d\n", - __func__, ret); + if (err) { + mlx4_err(dev, "%s: mlx4_load_one failed, err=%d\n", + __func__, err); goto end; } - ret = restore_current_port_types(dev, dev->persist-> + err = restore_current_port_types(dev, dev->persist-> curr_port_type, dev->persist-> curr_port_poss_type); - if (ret) - mlx4_err(dev, "could not restore original port types (%d)\n", ret); + if (err) + mlx4_err(dev, "could not restore original port types (%d)\n", err); } end: mutex_unlock(&persist->interface_state_mutex); - return ret ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED; } static void mlx4_shutdown(struct pci_dev *pdev) @@ -4105,6 +4142,7 @@ static void mlx4_shutdown(struct pci_dev *pdev) static const struct pci_error_handlers mlx4_err_handler = { .error_detected = mlx4_pci_err_detected, .slot_reset = mlx4_pci_slot_reset, + .resume = mlx4_pci_resume, }; static struct pci_driver mlx4_driver = { diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4.h b/drivers/net/ethernet/mellanox/mlx4/mlx4.h index ef9683101ead..c9d7fc5159f2 100644 --- a/drivers/net/ethernet/mellanox/mlx4/mlx4.h +++ b/drivers/net/ethernet/mellanox/mlx4/mlx4.h @@ -586,6 +586,8 @@ struct mlx4_mfunc_master_ctx { struct mlx4_master_qp0_state qp0_state[MLX4_MAX_PORTS + 1]; int init_port_ref[MLX4_MAX_PORTS + 1]; u16 max_mtu[MLX4_MAX_PORTS + 1]; + u8 pptx; + u8 pprx; int disable_mcast_ref[MLX4_MAX_PORTS + 1]; struct mlx4_resource_tracker res_tracker; struct workqueue_struct *comm_wq; diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h index d12ab6a73344..63b1aeae2c03 100644 --- a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h +++ b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h @@ -323,6 +323,7 @@ struct mlx4_en_rx_ring { unsigned long csum_ok; unsigned long csum_none; unsigned long csum_complete; + unsigned long dropped; int hwtstamp_rx_filter; cpumask_var_t affinity_mask; }; diff --git a/drivers/net/ethernet/mellanox/mlx4/port.c b/drivers/net/ethernet/mellanox/mlx4/port.c index 211c65087997..087b23b320cb 100644 --- a/drivers/net/ethernet/mellanox/mlx4/port.c +++ b/drivers/net/ethernet/mellanox/mlx4/port.c @@ -1317,6 +1317,19 @@ static int mlx4_common_set_port(struct mlx4_dev *dev, int slave, u32 in_mod, } gen_context->mtu = cpu_to_be16(master->max_mtu[port]); + /* Slave cannot change Global Pause configuration */ + if (slave != mlx4_master_func_num(dev) && + ((gen_context->pptx != master->pptx) || + (gen_context->pprx != master->pprx))) { + gen_context->pptx = master->pptx; + gen_context->pprx = master->pprx; + mlx4_warn(dev, + "denying Global Pause change for slave:%d\n", + slave); + } else { + master->pptx = gen_context->pptx; + master->pprx = gen_context->pprx; + } break; case MLX4_SET_PORT_GID_TABLE: /* change to MULTIPLE entries: number of guest's gids diff --git a/drivers/net/ethernet/qlogic/qede/qede_main.c b/drivers/net/ethernet/qlogic/qede/qede_main.c index 518af329502d..7869465435fa 100644 --- a/drivers/net/ethernet/qlogic/qede/qede_main.c +++ b/drivers/net/ethernet/qlogic/qede/qede_main.c @@ -750,6 +750,12 @@ static bool qede_has_tx_work(struct qede_fastpath *fp) return false; } +static inline void qede_rx_bd_ring_consume(struct qede_rx_queue *rxq) +{ + qed_chain_consume(&rxq->rx_bd_ring); + rxq->sw_rx_cons++; +} + /* This function reuses the buffer(from an offset) from * consumer index to producer index in the bd ring */ @@ -773,6 +779,21 @@ static inline void qede_reuse_page(struct qede_dev *edev, curr_cons->data = NULL; } +/* In case of allocation failures reuse buffers + * from consumer index to produce buffers for firmware + */ +static void qede_recycle_rx_bd_ring(struct qede_rx_queue *rxq, + struct qede_dev *edev, u8 count) +{ + struct sw_rx_data *curr_cons; + + for (; count > 0; count--) { + curr_cons = &rxq->sw_rx_ring[rxq->sw_rx_cons & NUM_RX_BDS_MAX]; + qede_reuse_page(edev, rxq, curr_cons); + qede_rx_bd_ring_consume(rxq); + } +} + static inline int qede_realloc_rx_buffer(struct qede_dev *edev, struct qede_rx_queue *rxq, struct sw_rx_data *curr_cons) @@ -781,8 +802,14 @@ static inline int qede_realloc_rx_buffer(struct qede_dev *edev, curr_cons->page_offset += rxq->rx_buf_seg_size; if (curr_cons->page_offset == PAGE_SIZE) { - if (unlikely(qede_alloc_rx_buffer(edev, rxq))) + if (unlikely(qede_alloc_rx_buffer(edev, rxq))) { + /* Since we failed to allocate new buffer + * current buffer can be used again. + */ + curr_cons->page_offset -= rxq->rx_buf_seg_size; + return -ENOMEM; + } dma_unmap_page(&edev->pdev->dev, curr_cons->mapping, PAGE_SIZE, DMA_FROM_DEVICE); @@ -901,7 +928,10 @@ static int qede_fill_frag_skb(struct qede_dev *edev, len_on_bd); if (unlikely(qede_realloc_rx_buffer(edev, rxq, current_bd))) { - tpa_info->agg_state = QEDE_AGG_STATE_ERROR; + /* Incr page ref count to reuse on allocation failure + * so that it doesn't get freed while freeing SKB. + */ + atomic_inc(¤t_bd->data->_count); goto out; } @@ -915,6 +945,8 @@ static int qede_fill_frag_skb(struct qede_dev *edev, return 0; out: + tpa_info->agg_state = QEDE_AGG_STATE_ERROR; + qede_recycle_rx_bd_ring(rxq, edev, 1); return -ENOMEM; } @@ -966,8 +998,9 @@ static void qede_tpa_start(struct qede_dev *edev, tpa_info->skb = netdev_alloc_skb(edev->ndev, le16_to_cpu(cqe->len_on_first_bd)); if (unlikely(!tpa_info->skb)) { + DP_NOTICE(edev, "Failed to allocate SKB for gro\n"); tpa_info->agg_state = QEDE_AGG_STATE_ERROR; - return; + goto cons_buf; } skb_put(tpa_info->skb, le16_to_cpu(cqe->len_on_first_bd)); @@ -990,6 +1023,7 @@ static void qede_tpa_start(struct qede_dev *edev, /* This is needed in order to enable forwarding support */ qede_set_gro_params(edev, tpa_info->skb, cqe); +cons_buf: /* We still need to handle bd_len_list to consume buffers */ if (likely(cqe->ext_bd_len_list[0])) qede_fill_frag_skb(edev, rxq, cqe->tpa_agg_index, le16_to_cpu(cqe->ext_bd_len_list[0])); @@ -1007,7 +1041,6 @@ static void qede_gro_ip_csum(struct sk_buff *skb) const struct iphdr *iph = ip_hdr(skb); struct tcphdr *th; - skb_set_network_header(skb, 0); skb_set_transport_header(skb, sizeof(struct iphdr)); th = tcp_hdr(skb); @@ -1022,7 +1055,6 @@ static void qede_gro_ipv6_csum(struct sk_buff *skb) struct ipv6hdr *iph = ipv6_hdr(skb); struct tcphdr *th; - skb_set_network_header(skb, 0); skb_set_transport_header(skb, sizeof(struct ipv6hdr)); th = tcp_hdr(skb); @@ -1037,8 +1069,21 @@ static void qede_gro_receive(struct qede_dev *edev, struct sk_buff *skb, u16 vlan_tag) { + /* FW can send a single MTU sized packet from gro flow + * due to aggregation timeout/last segment etc. which + * is not expected to be a gro packet. If a skb has zero + * frags then simply push it in the stack as non gso skb. + */ + if (unlikely(!skb->data_len)) { + skb_shinfo(skb)->gso_type = 0; + skb_shinfo(skb)->gso_size = 0; + goto send_skb; + } + #ifdef CONFIG_INET if (skb_shinfo(skb)->gso_size) { + skb_set_network_header(skb, 0); + switch (skb->protocol) { case htons(ETH_P_IP): qede_gro_ip_csum(skb); @@ -1053,6 +1098,8 @@ static void qede_gro_receive(struct qede_dev *edev, } } #endif + +send_skb: skb_record_rx_queue(skb, fp->rss_id); qede_skb_receive(edev, fp, skb, vlan_tag); } @@ -1244,17 +1291,17 @@ static int qede_rx_int(struct qede_fastpath *fp, int budget) "CQE in CONS = %u has error, flags = %x, dropping incoming packet\n", sw_comp_cons, parse_flag); rxq->rx_hw_errors++; - qede_reuse_page(edev, rxq, sw_rx_data); - goto next_rx; + qede_recycle_rx_bd_ring(rxq, edev, fp_cqe->bd_num); + goto next_cqe; } skb = netdev_alloc_skb(edev->ndev, QEDE_RX_HDR_SIZE); if (unlikely(!skb)) { DP_NOTICE(edev, "Build_skb failed, dropping incoming packet\n"); - qede_reuse_page(edev, rxq, sw_rx_data); + qede_recycle_rx_bd_ring(rxq, edev, fp_cqe->bd_num); rxq->rx_alloc_errors++; - goto next_rx; + goto next_cqe; } /* Copy data into SKB */ @@ -1288,11 +1335,22 @@ static int qede_rx_int(struct qede_fastpath *fp, int budget) if (unlikely(qede_realloc_rx_buffer(edev, rxq, sw_rx_data))) { DP_ERR(edev, "Failed to allocate rx buffer\n"); + /* Incr page ref count to reuse on allocation + * failure so that it doesn't get freed while + * freeing SKB. + */ + + atomic_inc(&sw_rx_data->data->_count); rxq->rx_alloc_errors++; + qede_recycle_rx_bd_ring(rxq, edev, + fp_cqe->bd_num); + dev_kfree_skb_any(skb); goto next_cqe; } } + qede_rx_bd_ring_consume(rxq); + if (fp_cqe->bd_num != 1) { u16 pkt_len = le16_to_cpu(fp_cqe->pkt_len); u8 num_frags; @@ -1303,18 +1361,27 @@ static int qede_rx_int(struct qede_fastpath *fp, int budget) num_frags--) { u16 cur_size = pkt_len > rxq->rx_buf_size ? rxq->rx_buf_size : pkt_len; + if (unlikely(!cur_size)) { + DP_ERR(edev, + "Still got %d BDs for mapping jumbo, but length became 0\n", + num_frags); + qede_recycle_rx_bd_ring(rxq, edev, + num_frags); + dev_kfree_skb_any(skb); + goto next_cqe; + } - WARN_ONCE(!cur_size, - "Still got %d BDs for mapping jumbo, but length became 0\n", - num_frags); - - if (unlikely(qede_alloc_rx_buffer(edev, rxq))) + if (unlikely(qede_alloc_rx_buffer(edev, rxq))) { + qede_recycle_rx_bd_ring(rxq, edev, + num_frags); + dev_kfree_skb_any(skb); goto next_cqe; + } - rxq->sw_rx_cons++; sw_rx_index = rxq->sw_rx_cons & NUM_RX_BDS_MAX; sw_rx_data = &rxq->sw_rx_ring[sw_rx_index]; - qed_chain_consume(&rxq->rx_bd_ring); + qede_rx_bd_ring_consume(rxq); + dma_unmap_page(&edev->pdev->dev, sw_rx_data->mapping, PAGE_SIZE, DMA_FROM_DEVICE); @@ -1330,7 +1397,7 @@ static int qede_rx_int(struct qede_fastpath *fp, int budget) pkt_len -= cur_size; } - if (pkt_len) + if (unlikely(pkt_len)) DP_ERR(edev, "Mapped all BDs of jumbo, but still have %d bytes\n", pkt_len); @@ -1349,10 +1416,6 @@ static int qede_rx_int(struct qede_fastpath *fp, int budget) skb_record_rx_queue(skb, fp->rss_id); qede_skb_receive(edev, fp, skb, le16_to_cpu(fp_cqe->vlan_tag)); - - qed_chain_consume(&rxq->rx_bd_ring); -next_rx: - rxq->sw_rx_cons++; next_rx_only: rx_pkt++; @@ -2257,7 +2320,7 @@ static void qede_free_sge_mem(struct qede_dev *edev, struct qede_agg_info *tpa_info = &rxq->tpa_info[i]; struct sw_rx_data *replace_buf = &tpa_info->replace_buf; - if (replace_buf) { + if (replace_buf->data) { dma_unmap_page(&edev->pdev->dev, dma_unmap_addr(replace_buf, mapping), PAGE_SIZE, DMA_FROM_DEVICE); @@ -2377,7 +2440,7 @@ err: static int qede_alloc_mem_rxq(struct qede_dev *edev, struct qede_rx_queue *rxq) { - int i, rc, size, num_allocated; + int i, rc, size; rxq->num_rx_buffers = edev->q_num_rx_buffers; @@ -2394,6 +2457,7 @@ static int qede_alloc_mem_rxq(struct qede_dev *edev, rxq->sw_rx_ring = kzalloc(size, GFP_KERNEL); if (!rxq->sw_rx_ring) { DP_ERR(edev, "Rx buffers ring allocation failed\n"); + rc = -ENOMEM; goto err; } @@ -2421,26 +2485,16 @@ static int qede_alloc_mem_rxq(struct qede_dev *edev, /* Allocate buffers for the Rx ring */ for (i = 0; i < rxq->num_rx_buffers; i++) { rc = qede_alloc_rx_buffer(edev, rxq); - if (rc) - break; - } - num_allocated = i; - if (!num_allocated) { - DP_ERR(edev, "Rx buffers allocation failed\n"); - goto err; - } else if (num_allocated < rxq->num_rx_buffers) { - DP_NOTICE(edev, - "Allocated less buffers than desired (%d allocated)\n", - num_allocated); + if (rc) { + DP_ERR(edev, + "Rx buffers allocation failed at index %d\n", i); + goto err; + } } - qede_alloc_sge_mem(edev, rxq); - - return 0; - + rc = qede_alloc_sge_mem(edev, rxq); err: - qede_free_mem_rxq(edev, rxq); - return -ENOMEM; + return rc; } static void qede_free_mem_txq(struct qede_dev *edev, @@ -2523,10 +2577,8 @@ static int qede_alloc_mem_fp(struct qede_dev *edev, } return 0; - err: - qede_free_mem_fp(edev, fp); - return -ENOMEM; + return rc; } static void qede_free_mem_load(struct qede_dev *edev) @@ -2549,22 +2601,13 @@ static int qede_alloc_mem_load(struct qede_dev *edev) struct qede_fastpath *fp = &edev->fp_array[rss_id]; rc = qede_alloc_mem_fp(edev, fp); - if (rc) - break; - } - - if (rss_id != QEDE_RSS_CNT(edev)) { - /* Failed allocating memory for all the queues */ - if (!rss_id) { + if (rc) { DP_ERR(edev, - "Failed to allocate memory for the leading queue\n"); - rc = -ENOMEM; - } else { - DP_NOTICE(edev, - "Failed to allocate memory for all of RSS queues\n Desired: %d queues, allocated: %d queues\n", - QEDE_RSS_CNT(edev), rss_id); + "Failed to allocate memory for fastpath - rss id = %d\n", + rss_id); + qede_free_mem_load(edev); + return rc; } - edev->num_rss = rss_id; } return 0; diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index 087e14a3fba7..9e2a0bd8f5a8 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -1691,6 +1691,9 @@ static int ravb_set_gti(struct net_device *ndev) rate = clk_get_rate(clk); clk_put(clk); + if (!rate) + return -EINVAL; + inc = 1000000000ULL << 20; do_div(inc, rate); diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c index 004e2d7560fd..ceea74cc2229 100644 --- a/drivers/net/ethernet/renesas/sh_eth.c +++ b/drivers/net/ethernet/renesas/sh_eth.c @@ -2194,17 +2194,13 @@ static int sh_eth_set_ringparam(struct net_device *ndev, __func__); return ret; } - ret = sh_eth_dev_init(ndev, false); + ret = sh_eth_dev_init(ndev, true); if (ret < 0) { netdev_err(ndev, "%s: sh_eth_dev_init failed.\n", __func__); return ret; } - mdp->irq_enabled = true; - sh_eth_write(ndev, mdp->cd->eesipr_value, EESIPR); - /* Setting the Rx mode will start the Rx process. */ - sh_eth_write(ndev, EDRRR_R, EDRRR); netif_device_attach(ndev); } diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c index f0d797ab74d8..44022b1845ce 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c @@ -34,6 +34,9 @@ #define SYSMGR_EMACGRP_CTRL_PHYSEL_MASK 0x00000003 #define SYSMGR_EMACGRP_CTRL_PTP_REF_CLK_MASK 0x00000010 +#define SYSMGR_FPGAGRP_MODULE_REG 0x00000028 +#define SYSMGR_FPGAGRP_MODULE_EMAC 0x00000004 + #define EMAC_SPLITTER_CTRL_REG 0x0 #define EMAC_SPLITTER_CTRL_SPEED_MASK 0x3 #define EMAC_SPLITTER_CTRL_SPEED_10 0x2 @@ -148,7 +151,7 @@ static int socfpga_dwmac_setup(struct socfpga_dwmac *dwmac) int phymode = dwmac->interface; u32 reg_offset = dwmac->reg_offset; u32 reg_shift = dwmac->reg_shift; - u32 ctrl, val; + u32 ctrl, val, module; switch (phymode) { case PHY_INTERFACE_MODE_RGMII: @@ -175,12 +178,19 @@ static int socfpga_dwmac_setup(struct socfpga_dwmac *dwmac) ctrl &= ~(SYSMGR_EMACGRP_CTRL_PHYSEL_MASK << reg_shift); ctrl |= val << reg_shift; - if (dwmac->f2h_ptp_ref_clk) + if (dwmac->f2h_ptp_ref_clk) { ctrl |= SYSMGR_EMACGRP_CTRL_PTP_REF_CLK_MASK << (reg_shift / 2); - else + regmap_read(sys_mgr_base_addr, SYSMGR_FPGAGRP_MODULE_REG, + &module); + module |= (SYSMGR_FPGAGRP_MODULE_EMAC << (reg_shift / 2)); + regmap_write(sys_mgr_base_addr, SYSMGR_FPGAGRP_MODULE_REG, + module); + } else { ctrl &= ~(SYSMGR_EMACGRP_CTRL_PTP_REF_CLK_MASK << (reg_shift / 2)); + } regmap_write(sys_mgr_base_addr, reg_offset, ctrl); + return 0; } diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 78464fa7fe1f..fcbd4be562e2 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -288,10 +288,6 @@ bool stmmac_eee_init(struct stmmac_priv *priv) (priv->pcs == STMMAC_PCS_RTBI)) goto out; - /* Never init EEE in case of a switch is attached */ - if (priv->phydev->is_pseudo_fixed_link) - goto out; - /* MAC core supports the EEE feature. */ if (priv->dma_cap.eee) { int tx_lpi_timer = priv->tx_lpi_timer; @@ -771,10 +767,16 @@ static void stmmac_adjust_link(struct net_device *dev) spin_unlock_irqrestore(&priv->lock, flags); - /* At this stage, it could be needed to setup the EEE or adjust some - * MAC related HW registers. - */ - priv->eee_enabled = stmmac_eee_init(priv); + if (phydev->is_pseudo_fixed_link) + /* Stop PHY layer to call the hook to adjust the link in case + * of a switch is attached to the stmmac driver. + */ + phydev->irq = PHY_IGNORE_INTERRUPT; + else + /* At this stage, init the EEE if supported. + * Never called in case of fixed_link. + */ + priv->eee_enabled = stmmac_eee_init(priv); } /** @@ -865,10 +867,6 @@ static int stmmac_init_phy(struct net_device *dev) return -ENODEV; } - /* If attached to a switch, there is no reason to poll phy handler */ - if (phydev->is_pseudo_fixed_link) - phydev->irq = PHY_IGNORE_INTERRUPT; - pr_debug("stmmac_init_phy: %s: attached to PHY (UID 0x%x)" " Link = %d\n", dev->name, phydev->phy_id, phydev->link); diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c index 42fdfd4d9d4f..bbb77cd8ad67 100644 --- a/drivers/net/ethernet/ti/cpsw.c +++ b/drivers/net/ethernet/ti/cpsw.c @@ -1251,12 +1251,12 @@ static int cpsw_ndo_open(struct net_device *ndev) int i, ret; u32 reg; + pm_runtime_get_sync(&priv->pdev->dev); + if (!cpsw_common_res_usage_state(priv)) cpsw_intr_disable(priv); netif_carrier_off(ndev); - pm_runtime_get_sync(&priv->pdev->dev); - reg = priv->version; dev_info(priv->dev, "initializing cpsw version %d.%d (%d)\n", diff --git a/drivers/net/ethernet/ti/davinci_emac.c b/drivers/net/ethernet/ti/davinci_emac.c index 5d9abedd6b75..58d58f002559 100644 --- a/drivers/net/ethernet/ti/davinci_emac.c +++ b/drivers/net/ethernet/ti/davinci_emac.c @@ -1878,8 +1878,6 @@ davinci_emac_of_get_pdata(struct platform_device *pdev, struct emac_priv *priv) pdata->hw_ram_addr = auxdata->hw_ram_addr; } - pdev->dev.platform_data = pdata; - return pdata; } @@ -2101,6 +2099,7 @@ static int davinci_emac_remove(struct platform_device *pdev) cpdma_ctlr_destroy(priv->dma); unregister_netdev(ndev); + pm_runtime_disable(&pdev->dev); free_netdev(ndev); return 0; |
