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-rw-r--r--drivers/net/ethernet/aeroflex/greth.c1
-rw-r--r--drivers/net/ethernet/alacritech/slicoss.c4
-rw-r--r--drivers/net/ethernet/amazon/ena/ena_com.c1
-rw-r--r--drivers/net/ethernet/atheros/atlx/atl1.c1
-rw-r--r--drivers/net/ethernet/atheros/atlx/atl2.c1
-rw-r--r--drivers/net/ethernet/broadcom/bnx2.c4
-rw-r--r--drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c2
-rw-r--r--drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h4
-rw-r--r--drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c1
-rw-r--r--drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c29
-rw-r--r--drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c1
-rw-r--r--drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c2
-rw-r--r--drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c4
-rw-r--r--drivers/net/ethernet/broadcom/bnxt/bnxt.c3
-rw-r--r--drivers/net/ethernet/broadcom/tg3.c6
-rw-r--r--drivers/net/ethernet/cavium/liquidio/cn66xx_device.c10
-rw-r--r--drivers/net/ethernet/cavium/liquidio/octeon_device.c1
-rw-r--r--drivers/net/ethernet/cavium/liquidio/octeon_droq.c4
-rw-r--r--drivers/net/ethernet/cavium/liquidio/request_manager.c1
-rw-r--r--drivers/net/ethernet/intel/e1000/e1000_main.c5
-rw-r--r--drivers/net/ethernet/intel/e1000e/netdev.c7
-rw-r--r--drivers/net/ethernet/intel/fm10k/fm10k_iov.c2
-rw-r--r--drivers/net/ethernet/intel/fm10k/fm10k_main.c5
-rw-r--r--drivers/net/ethernet/intel/i40e/i40e_txrx.c5
-rw-r--r--drivers/net/ethernet/intel/iavf/iavf_txrx.c5
-rw-r--r--drivers/net/ethernet/intel/ice/ice_txrx.c5
-rw-r--r--drivers/net/ethernet/intel/igb/igb_main.c5
-rw-r--r--drivers/net/ethernet/intel/igbvf/netdev.c4
-rw-r--r--drivers/net/ethernet/intel/igc/igc_main.c5
-rw-r--r--drivers/net/ethernet/intel/ixgbe/ixgbe_main.c5
-rw-r--r--drivers/net/ethernet/marvell/sky2.c4
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/catas.c4
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/cmd.c13
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/cmd.c1
-rw-r--r--drivers/net/ethernet/myricom/myri10ge/myri10ge.c2
-rw-r--r--drivers/net/ethernet/neterion/s2io.c2
-rw-r--r--drivers/net/ethernet/neterion/vxge/vxge-main.c5
-rw-r--r--drivers/net/ethernet/neterion/vxge/vxge-traffic.c4
-rw-r--r--drivers/net/ethernet/qlogic/qed/qed_int.c13
-rw-r--r--drivers/net/ethernet/qlogic/qed/qed_spq.c3
-rw-r--r--drivers/net/ethernet/qlogic/qede/qede_ethtool.c8
-rw-r--r--drivers/net/ethernet/qlogic/qede/qede_fp.c8
-rw-r--r--drivers/net/ethernet/qlogic/qla3xxx.c1
-rw-r--r--drivers/net/ethernet/qlogic/qlge/qlge.h1
-rw-r--r--drivers/net/ethernet/qlogic/qlge/qlge_main.c1
-rw-r--r--drivers/net/ethernet/renesas/ravb_main.c9
-rw-r--r--drivers/net/ethernet/renesas/ravb_ptp.c3
-rw-r--r--drivers/net/ethernet/renesas/sh_eth.c1
-rw-r--r--drivers/net/ethernet/sfc/falcon/io.h2
-rw-r--r--drivers/net/ethernet/sfc/io.h2
-rw-r--r--drivers/net/ethernet/silan/sc92031.c14
-rw-r--r--drivers/net/ethernet/via/via-rhine.c3
-rw-r--r--drivers/net/ethernet/wiznet/w5100.c6
-rw-r--r--drivers/net/ethernet/wiznet/w5300.c15
54 files changed, 0 insertions, 258 deletions
diff --git a/drivers/net/ethernet/aeroflex/greth.c b/drivers/net/ethernet/aeroflex/greth.c
index 47e5984f16fb..3155f7fa83eb 100644
--- a/drivers/net/ethernet/aeroflex/greth.c
+++ b/drivers/net/ethernet/aeroflex/greth.c
@@ -613,7 +613,6 @@ static irqreturn_t greth_interrupt(int irq, void *dev_id)
napi_schedule(&greth->napi);
}
- mmiowb();
spin_unlock(&greth->devlock);
return retval;
diff --git a/drivers/net/ethernet/alacritech/slicoss.c b/drivers/net/ethernet/alacritech/slicoss.c
index 16477aa6d61f..4f7e792e50e9 100644
--- a/drivers/net/ethernet/alacritech/slicoss.c
+++ b/drivers/net/ethernet/alacritech/slicoss.c
@@ -345,8 +345,6 @@ static void slic_set_rx_mode(struct net_device *dev)
if (sdev->promisc != set_promisc) {
sdev->promisc = set_promisc;
slic_configure_rcv(sdev);
- /* make sure writes to receiver cant leak out of the lock */
- mmiowb();
}
spin_unlock_bh(&sdev->link_lock);
}
@@ -1461,8 +1459,6 @@ static netdev_tx_t slic_xmit(struct sk_buff *skb, struct net_device *dev)
if (slic_get_free_tx_descs(txq) < SLIC_MAX_REQ_TX_DESCS)
netif_stop_queue(dev);
- /* make sure writes to io-memory cant leak out of tx queue lock */
- mmiowb();
return NETDEV_TX_OK;
drop_skb:
diff --git a/drivers/net/ethernet/amazon/ena/ena_com.c b/drivers/net/ethernet/amazon/ena/ena_com.c
index b17d435de09f..05798aa5bb73 100644
--- a/drivers/net/ethernet/amazon/ena/ena_com.c
+++ b/drivers/net/ethernet/amazon/ena/ena_com.c
@@ -2016,7 +2016,6 @@ void ena_com_aenq_intr_handler(struct ena_com_dev *dev, void *data)
mb();
writel_relaxed((u32)aenq->head,
dev->reg_bar + ENA_REGS_AENQ_HEAD_DB_OFF);
- mmiowb();
}
int ena_com_dev_reset(struct ena_com_dev *ena_dev,
diff --git a/drivers/net/ethernet/atheros/atlx/atl1.c b/drivers/net/ethernet/atheros/atlx/atl1.c
index 9e07b469066a..f7583c5d9509 100644
--- a/drivers/net/ethernet/atheros/atlx/atl1.c
+++ b/drivers/net/ethernet/atheros/atlx/atl1.c
@@ -2439,7 +2439,6 @@ static netdev_tx_t atl1_xmit_frame(struct sk_buff *skb,
atl1_tx_map(adapter, skb, ptpd);
atl1_tx_queue(adapter, count, ptpd);
atl1_update_mailbox(adapter);
- mmiowb();
return NETDEV_TX_OK;
}
diff --git a/drivers/net/ethernet/atheros/atlx/atl2.c b/drivers/net/ethernet/atheros/atlx/atl2.c
index d99317b3d891..1474cac7e892 100644
--- a/drivers/net/ethernet/atheros/atlx/atl2.c
+++ b/drivers/net/ethernet/atheros/atlx/atl2.c
@@ -908,7 +908,6 @@ static netdev_tx_t atl2_xmit_frame(struct sk_buff *skb,
ATL2_WRITE_REGW(&adapter->hw, REG_MB_TXD_WR_IDX,
(adapter->txd_write_ptr >> 2));
- mmiowb();
dev_consume_skb_any(skb);
return NETDEV_TX_OK;
}
diff --git a/drivers/net/ethernet/broadcom/bnx2.c b/drivers/net/ethernet/broadcom/bnx2.c
index d63371d70bce..dfdd14eadd57 100644
--- a/drivers/net/ethernet/broadcom/bnx2.c
+++ b/drivers/net/ethernet/broadcom/bnx2.c
@@ -3305,8 +3305,6 @@ next_rx:
BNX2_WR(bp, rxr->rx_bseq_addr, rxr->rx_prod_bseq);
- mmiowb();
-
return rx_pkt;
}
@@ -6723,8 +6721,6 @@ bnx2_start_xmit(struct sk_buff *skb, struct net_device *dev)
BNX2_WR16(bp, txr->tx_bidx_addr, prod);
BNX2_WR(bp, txr->tx_bseq_addr, txr->tx_prod_bseq);
- mmiowb();
-
txr->tx_prod = prod;
if (unlikely(bnx2_tx_avail(bp, txr) <= MAX_SKB_FRAGS)) {
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
index ecb1bd7eb508..0c8f5b546c6f 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
@@ -4166,8 +4166,6 @@ netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev)
DOORBELL_RELAXED(bp, txdata->cid, txdata->tx_db.raw);
- mmiowb();
-
txdata->tx_bd_prod += nbd;
if (unlikely(bnx2x_tx_avail(bp, txdata) < MAX_DESC_PER_TX_PKT)) {
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
index 1ed068509337..2d57af9c061c 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
@@ -527,8 +527,6 @@ static inline void bnx2x_update_rx_prod(struct bnx2x *bp,
REG_WR_RELAXED(bp, fp->ustorm_rx_prods_offset + i * 4,
((u32 *)&rx_prods)[i]);
- mmiowb();
-
DP(NETIF_MSG_RX_STATUS,
"queue[%d]: wrote bd_prod %u cqe_prod %u sge_prod %u\n",
fp->index, bd_prod, rx_comp_prod, rx_sge_prod);
@@ -653,7 +651,6 @@ static inline void bnx2x_igu_ack_sb_gen(struct bnx2x *bp, u8 igu_sb_id,
REG_WR(bp, igu_addr, cmd_data.sb_id_and_flags);
/* Make sure that ACK is written */
- mmiowb();
barrier();
}
@@ -674,7 +671,6 @@ static inline void bnx2x_hc_ack_sb(struct bnx2x *bp, u8 sb_id,
REG_WR(bp, hc_addr, (*(u32 *)&igu_ack));
/* Make sure that ACK is written */
- mmiowb();
barrier();
}
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
index 749d0ef44371..0745cccd416d 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
@@ -2623,7 +2623,6 @@ static int bnx2x_run_loopback(struct bnx2x *bp, int loopback_mode)
wmb();
DOORBELL_RELAXED(bp, txdata->cid, txdata->tx_db.raw);
- mmiowb();
barrier();
num_pkts++;
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index e46786a56b0c..3716c828ff5d 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -869,9 +869,6 @@ static void bnx2x_hc_int_disable(struct bnx2x *bp)
"write %x to HC %d (addr 0x%x)\n",
val, port, addr);
- /* flush all outstanding writes */
- mmiowb();
-
REG_WR(bp, addr, val);
if (REG_RD(bp, addr) != val)
BNX2X_ERR("BUG! Proper val not read from IGU!\n");
@@ -887,9 +884,6 @@ static void bnx2x_igu_int_disable(struct bnx2x *bp)
DP(NETIF_MSG_IFDOWN, "write %x to IGU\n", val);
- /* flush all outstanding writes */
- mmiowb();
-
REG_WR(bp, IGU_REG_PF_CONFIGURATION, val);
if (REG_RD(bp, IGU_REG_PF_CONFIGURATION) != val)
BNX2X_ERR("BUG! Proper val not read from IGU!\n");
@@ -1595,7 +1589,6 @@ static void bnx2x_hc_int_enable(struct bnx2x *bp)
/*
* Ensure that HC_CONFIG is written before leading/trailing edge config
*/
- mmiowb();
barrier();
if (!CHIP_IS_E1(bp)) {
@@ -1611,9 +1604,6 @@ static void bnx2x_hc_int_enable(struct bnx2x *bp)
REG_WR(bp, HC_REG_TRAILING_EDGE_0 + port*8, val);
REG_WR(bp, HC_REG_LEADING_EDGE_0 + port*8, val);
}
-
- /* Make sure that interrupts are indeed enabled from here on */
- mmiowb();
}
static void bnx2x_igu_int_enable(struct bnx2x *bp)
@@ -1674,9 +1664,6 @@ static void bnx2x_igu_int_enable(struct bnx2x *bp)
REG_WR(bp, IGU_REG_TRAILING_EDGE_LATCH, val);
REG_WR(bp, IGU_REG_LEADING_EDGE_LATCH, val);
-
- /* Make sure that interrupts are indeed enabled from here on */
- mmiowb();
}
void bnx2x_int_enable(struct bnx2x *bp)
@@ -3833,7 +3820,6 @@ static void bnx2x_sp_prod_update(struct bnx2x *bp)
REG_WR16_RELAXED(bp, BAR_XSTRORM_INTMEM + XSTORM_SPQ_PROD_OFFSET(func),
bp->spq_prod_idx);
- mmiowb();
}
/**
@@ -5244,7 +5230,6 @@ static void bnx2x_update_eq_prod(struct bnx2x *bp, u16 prod)
{
/* No memory barriers */
storm_memset_eq_prod(bp, prod, BP_FUNC(bp));
- mmiowb();
}
static int bnx2x_cnic_handle_cfc_del(struct bnx2x *bp, u32 cid,
@@ -6513,7 +6498,6 @@ void bnx2x_nic_init_cnic(struct bnx2x *bp)
/* flush all */
mb();
- mmiowb();
}
void bnx2x_pre_irq_nic_init(struct bnx2x *bp)
@@ -6553,7 +6537,6 @@ void bnx2x_post_irq_nic_init(struct bnx2x *bp, u32 load_code)
/* flush all before enabling interrupts */
mb();
- mmiowb();
bnx2x_int_enable(bp);
@@ -7775,12 +7758,10 @@ void bnx2x_igu_clear_sb_gen(struct bnx2x *bp, u8 func, u8 idu_sb_id, bool is_pf)
DP(NETIF_MSG_HW, "write 0x%08x to IGU(via GRC) addr 0x%x\n",
data, igu_addr_data);
REG_WR(bp, igu_addr_data, data);
- mmiowb();
barrier();
DP(NETIF_MSG_HW, "write 0x%08x to IGU(via GRC) addr 0x%x\n",
ctl, igu_addr_ctl);
REG_WR(bp, igu_addr_ctl, ctl);
- mmiowb();
barrier();
/* wait for clean up to finish */
@@ -9550,7 +9531,6 @@ static void bnx2x_set_234_gates(struct bnx2x *bp, bool close)
DP(NETIF_MSG_HW | NETIF_MSG_IFUP, "%s gates #2, #3 and #4\n",
close ? "closing" : "opening");
- mmiowb();
}
#define SHARED_MF_CLP_MAGIC 0x80000000 /* `magic' bit */
@@ -9674,7 +9654,6 @@ static void bnx2x_pxp_prep(struct bnx2x *bp)
if (!CHIP_IS_E1(bp)) {
REG_WR(bp, PXP2_REG_RD_START_INIT, 0);
REG_WR(bp, PXP2_REG_RQ_RBC_DONE, 0);
- mmiowb();
}
}
@@ -9774,16 +9753,13 @@ static void bnx2x_process_kill_chip_reset(struct bnx2x *bp, bool global)
reset_mask1 & (~not_reset_mask1));
barrier();
- mmiowb();
REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_SET,
reset_mask2 & (~stay_reset2));
barrier();
- mmiowb();
REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_1_SET, reset_mask1);
- mmiowb();
}
/**
@@ -9867,9 +9843,6 @@ static int bnx2x_process_kill(struct bnx2x *bp, bool global)
REG_WR(bp, MISC_REG_UNPREPARED, 0);
barrier();
- /* Make sure all is written to the chip before the reset */
- mmiowb();
-
/* Wait for 1ms to empty GLUE and PCI-E core queues,
* PSWHST, GRC and PSWRD Tetris buffer.
*/
@@ -14828,7 +14801,6 @@ static int bnx2x_drv_ctl(struct net_device *dev, struct drv_ctl_info *ctl)
if (rc)
break;
- mmiowb();
barrier();
/* Start accepting on iSCSI L2 ring */
@@ -14863,7 +14835,6 @@ static int bnx2x_drv_ctl(struct net_device *dev, struct drv_ctl_info *ctl)
if (!bnx2x_wait_sp_comp(bp, sp_bits))
BNX2X_ERR("rx_mode completion timed out!\n");
- mmiowb();
barrier();
/* Unset iSCSI L2 MAC */
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c
index 7b22a6d8514c..80d250a6d048 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c
@@ -5039,7 +5039,6 @@ static inline int bnx2x_q_init(struct bnx2x *bp,
/* As no ramrod is sent, complete the command immediately */
o->complete_cmd(bp, o, BNX2X_Q_CMD_INIT);
- mmiowb();
smp_mb();
return 0;
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
index c97b642e6537..0edbb0a76847 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
@@ -100,13 +100,11 @@ static void bnx2x_vf_igu_ack_sb(struct bnx2x *bp, struct bnx2x_virtf *vf,
DP(NETIF_MSG_HW, "write 0x%08x to IGU(via GRC) addr 0x%x\n",
cmd_data.sb_id_and_flags, igu_addr_data);
REG_WR(bp, igu_addr_data, cmd_data.sb_id_and_flags);
- mmiowb();
barrier();
DP(NETIF_MSG_HW, "write 0x%08x to IGU(via GRC) addr 0x%x\n",
ctl, igu_addr_ctl);
REG_WR(bp, igu_addr_ctl, ctl);
- mmiowb();
barrier();
}
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c
index a9bdc21873d3..672b57f0b84d 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c
@@ -172,8 +172,6 @@ static int bnx2x_send_msg2pf(struct bnx2x *bp, u8 *done, dma_addr_t msg_mapping)
/* Trigger the PF FW */
writeb_relaxed(1, &zone_data->trigger.vf_pf_channel.addr_valid);
- mmiowb();
-
/* Wait for PF to complete */
while ((tout >= 0) && (!*done)) {
msleep(interval);
@@ -1179,7 +1177,6 @@ static void bnx2x_vf_mbx_resp_send_msg(struct bnx2x *bp,
/* ack the FW */
storm_memset_vf_mbx_ack(bp, vf->abs_vfid);
- mmiowb();
/* copy the response header including status-done field,
* must be last dmae, must be after FW is acked
@@ -2174,7 +2171,6 @@ static void bnx2x_vf_mbx_request(struct bnx2x *bp, struct bnx2x_virtf *vf,
*/
storm_memset_vf_mbx_ack(bp, vf->abs_vfid);
/* Firmware ack should be written before unlocking channel */
- mmiowb();
bnx2x_unlock_vf_pf_channel(bp, vf, mbx->first_tlv.tl.type);
}
}
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 0bb9d7b3a2b6..b8b68d408ad0 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -556,8 +556,6 @@ normal_tx:
tx_done:
- mmiowb();
-
if (unlikely(bnxt_tx_avail(bp, txr) <= MAX_SKB_FRAGS + 1)) {
if (skb->xmit_more && !tx_buf->is_push)
bnxt_db_write(bp, &txr->tx_db, prod);
@@ -2123,7 +2121,6 @@ static int bnxt_poll(struct napi_struct *napi, int budget)
&dim_sample);
net_dim(&cpr->dim, dim_sample);
}
- mmiowb();
return work_done;
}
diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index 328373e0578f..821bccc0915c 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -1073,7 +1073,6 @@ static void tg3_int_reenable(struct tg3_napi *tnapi)
struct tg3 *tp = tnapi->tp;
tw32_mailbox(tnapi->int_mbox, tnapi->last_tag << 24);
- mmiowb();
/* When doing tagged status, this work check is unnecessary.
* The last_tag we write above tells the chip which piece of
@@ -6999,7 +6998,6 @@ next_pkt_nopost:
tw32_rx_mbox(TG3_RX_JMB_PROD_IDX_REG,
tpr->rx_jmb_prod_idx);
}
- mmiowb();
} else if (work_mask) {
/* rx_std_buffers[] and rx_jmb_buffers[] entries must be
* updated before the producer indices can be updated.
@@ -7210,8 +7208,6 @@ static int tg3_poll_work(struct tg3_napi *tnapi, int work_done, int budget)
tw32_rx_mbox(TG3_RX_JMB_PROD_IDX_REG,
dpr->rx_jmb_prod_idx);
- mmiowb();
-
if (err)
tw32_f(HOSTCC_MODE, tp->coal_now);
}
@@ -7278,7 +7274,6 @@ static int tg3_poll_msix(struct napi_struct *napi, int budget)
HOSTCC_MODE_ENABLE |
tnapi->coal_now);
}
- mmiowb();
break;
}
}
@@ -8159,7 +8154,6 @@ static netdev_tx_t tg3_start_xmit(struct sk_buff *skb, struct net_device *dev)
if (!skb->xmit_more || netif_xmit_stopped(txq)) {
/* Packets are ready, update Tx producer idx on card. */
tw32_tx_mbox(tnapi->prodmbox, entry);
- mmiowb();
}
return NETDEV_TX_OK;
diff --git a/drivers/net/ethernet/cavium/liquidio/cn66xx_device.c b/drivers/net/ethernet/cavium/liquidio/cn66xx_device.c
index 2df7440f58df..39643be8c30a 100644
--- a/drivers/net/ethernet/cavium/liquidio/cn66xx_device.c
+++ b/drivers/net/ethernet/cavium/liquidio/cn66xx_device.c
@@ -38,9 +38,6 @@ int lio_cn6xxx_soft_reset(struct octeon_device *oct)
lio_pci_readq(oct, CN6XXX_CIU_SOFT_RST);
lio_pci_writeq(oct, 1, CN6XXX_CIU_SOFT_RST);
- /* make sure that the reset is written before starting timer */
- mmiowb();
-
/* Wait for 10ms as Octeon resets. */
mdelay(100);
@@ -487,9 +484,6 @@ void lio_cn6xxx_disable_interrupt(struct octeon_device *oct,
/* Disable Interrupts */
writeq(0, cn6xxx->intr_enb_reg64);
-
- /* make sure interrupts are really disabled */
- mmiowb();
}
static void lio_cn6xxx_get_pcie_qlmport(struct octeon_device *oct)
@@ -555,10 +549,6 @@ static int lio_cn6xxx_process_droq_intr_regs(struct octeon_device *oct)
value &= ~(1 << oq_no);
octeon_write_csr(oct, reg, value);
- /* Ensure that the enable register is written.
- */
- mmiowb();
-
spin_unlock(&cn6xxx->lock_for_droq_int_enb_reg);
}
}
diff --git a/drivers/net/ethernet/cavium/liquidio/octeon_device.c b/drivers/net/ethernet/cavium/liquidio/octeon_device.c
index ce8c3f818666..934115d18488 100644
--- a/drivers/net/ethernet/cavium/liquidio/octeon_device.c
+++ b/drivers/net/ethernet/cavium/liquidio/octeon_device.c
@@ -1449,7 +1449,6 @@ void lio_enable_irq(struct octeon_droq *droq, struct octeon_instr_queue *iq)
iq->pkt_in_done -= iq->pkts_processed;
iq->pkts_processed = 0;
/* this write needs to be flushed before we release the lock */
- mmiowb();
spin_unlock_bh(&iq->lock);
oct = iq->oct_dev;
}
diff --git a/drivers/net/ethernet/cavium/liquidio/octeon_droq.c b/drivers/net/ethernet/cavium/liquidio/octeon_droq.c
index a0c099f71524..017169023cca 100644
--- a/drivers/net/ethernet/cavium/liquidio/octeon_droq.c
+++ b/drivers/net/ethernet/cavium/liquidio/octeon_droq.c
@@ -513,8 +513,6 @@ int octeon_retry_droq_refill(struct octeon_droq *droq)
*/
wmb();
writel(desc_refilled, droq->pkts_credit_reg);
- /* make sure mmio write completes */
- mmiowb();
if (pkts_credit + desc_refilled >= CN23XX_SLI_DEF_BP)
reschedule = 0;
@@ -712,8 +710,6 @@ octeon_droq_fast_process_packets(struct octeon_device *oct,
*/
wmb();
writel(desc_refilled, droq->pkts_credit_reg);
- /* make sure mmio write completes */
- mmiowb();
}
}
} /* for (each packet)... */
diff --git a/drivers/net/ethernet/cavium/liquidio/request_manager.c b/drivers/net/ethernet/cavium/liquidio/request_manager.c
index c6f4cbda040f..fcf20a8f92d9 100644
--- a/drivers/net/ethernet/cavium/liquidio/request_manager.c
+++ b/drivers/net/ethernet/cavium/liquidio/request_manager.c
@@ -278,7 +278,6 @@ ring_doorbell(struct octeon_device *oct, struct octeon_instr_queue *iq)
if (atomic_read(&oct->status) == OCT_DEV_RUNNING) {
writel(iq->fill_cnt, iq->doorbell_reg);
/* make sure doorbell write goes through */
- mmiowb();
iq->fill_cnt = 0;
iq->last_db_time = jiffies;
return;
diff --git a/drivers/net/ethernet/intel/e1000/e1000_main.c b/drivers/net/ethernet/intel/e1000/e1000_main.c
index 8fe9af0e2ab7..466bf1ea186d 100644
--- a/drivers/net/ethernet/intel/e1000/e1000_main.c
+++ b/drivers/net/ethernet/intel/e1000/e1000_main.c
@@ -3270,11 +3270,6 @@ static netdev_tx_t e1000_xmit_frame(struct sk_buff *skb,
if (!skb->xmit_more ||
netif_xmit_stopped(netdev_get_tx_queue(netdev, 0))) {
writel(tx_ring->next_to_use, hw->hw_addr + tx_ring->tdt);
- /* we need this if more than one processor can write to
- * our tail at a time, it synchronizes IO on IA64/Altix
- * systems
- */
- mmiowb();
}
} else {
dev_kfree_skb_any(skb);
diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
index 7acc61e4f645..022c3ac0e40f 100644
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -3816,7 +3816,6 @@ static void e1000_flush_tx_ring(struct e1000_adapter *adapter)
if (tx_ring->next_to_use == tx_ring->count)
tx_ring->next_to_use = 0;
ew32(TDT(0), tx_ring->next_to_use);
- mmiowb();
usleep_range(200, 250);
}
@@ -5904,12 +5903,6 @@ static netdev_tx_t e1000_xmit_frame(struct sk_buff *skb,
tx_ring->next_to_use);
else
writel(tx_ring->next_to_use, tx_ring->tail);
-
- /* we need this if more than one processor can write
- * to our tail at a time, it synchronizes IO on
- *IA64/Altix systems
- */
- mmiowb();
}
} else {
dev_kfree_skb_any(skb);
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_iov.c b/drivers/net/ethernet/intel/fm10k/fm10k_iov.c
index 5d4f1761dc0c..8de77155f2e7 100644
--- a/drivers/net/ethernet/intel/fm10k/fm10k_iov.c
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_iov.c
@@ -321,8 +321,6 @@ static void fm10k_mask_aer_comp_abort(struct pci_dev *pdev)
pci_read_config_dword(pdev, pos + PCI_ERR_UNCOR_MASK, &err_mask);
err_mask |= PCI_ERR_UNC_COMP_ABORT;
pci_write_config_dword(pdev, pos + PCI_ERR_UNCOR_MASK, err_mask);
-
- mmiowb();
}
int fm10k_iov_resume(struct pci_dev *pdev)
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_main.c b/drivers/net/ethernet/intel/fm10k/fm10k_main.c
index 5a0419421511..1f48298f01e6 100644
--- a/drivers/net/ethernet/intel/fm10k/fm10k_main.c
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_main.c
@@ -1037,11 +1037,6 @@ static void fm10k_tx_map(struct fm10k_ring *tx_ring,
/* notify HW of packet */
if (netif_xmit_stopped(txring_txq(tx_ring)) || !skb->xmit_more) {
writel(i, tx_ring->tail);
-
- /* we need this if more than one processor can write to our tail
- * at a time, it synchronizes IO on IA64/Altix systems
- */
- mmiowb();
}
return;
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
index 6c97667d20ef..ffb611bbedfa 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
@@ -3471,11 +3471,6 @@ static inline int i40e_tx_map(struct i40e_ring *tx_ring, struct sk_buff *skb,
/* notify HW of packet */
if (netif_xmit_stopped(txring_txq(tx_ring)) || !skb->xmit_more) {
writel(i, tx_ring->tail);
-
- /* we need this if more than one processor can write to our tail
- * at a time, it synchronizes IO on IA64/Altix systems
- */
- mmiowb();
}
return 0;
diff --git a/drivers/net/ethernet/intel/iavf/iavf_txrx.c b/drivers/net/ethernet/intel/iavf/iavf_txrx.c
index 9b4d7cec2e18..6bfef82e7607 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_txrx.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_txrx.c
@@ -2360,11 +2360,6 @@ static inline void iavf_tx_map(struct iavf_ring *tx_ring, struct sk_buff *skb,
/* notify HW of packet */
if (netif_xmit_stopped(txring_txq(tx_ring)) || !skb->xmit_more) {
writel(i, tx_ring->tail);
-
- /* we need this if more than one processor can write to our tail
- * at a time, it synchronizes IO on IA64/Altix systems
- */
- mmiowb();
}
return;
diff --git a/drivers/net/ethernet/intel/ice/ice_txrx.c b/drivers/net/ethernet/intel/ice/ice_txrx.c
index c289d97f477d..1af21bbe180e 100644
--- a/drivers/net/ethernet/intel/ice/ice_txrx.c
+++ b/drivers/net/ethernet/intel/ice/ice_txrx.c
@@ -1356,11 +1356,6 @@ ice_tx_map(struct ice_ring *tx_ring, struct ice_tx_buf *first,
/* notify HW of packet */
if (netif_xmit_stopped(txring_txq(tx_ring)) || !skb->xmit_more) {
writel(i, tx_ring->tail);
-
- /* we need this if more than one processor can write to our tail
- * at a time, it synchronizes IO on IA64/Altix systems
- */
- mmiowb();
}
return;
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index 69b230c53fed..09ba94496742 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -6028,11 +6028,6 @@ static int igb_tx_map(struct igb_ring *tx_ring,
if (netif_xmit_stopped(txring_txq(tx_ring)) || !skb->xmit_more) {
writel(i, tx_ring->tail);
-
- /* we need this if more than one processor can write to our tail
- * at a time, it synchronizes IO on IA64/Altix systems
- */
- mmiowb();
}
return 0;
diff --git a/drivers/net/ethernet/intel/igbvf/netdev.c b/drivers/net/ethernet/intel/igbvf/netdev.c
index 4eab83faec62..34cd30d7162f 100644
--- a/drivers/net/ethernet/intel/igbvf/netdev.c
+++ b/drivers/net/ethernet/intel/igbvf/netdev.c
@@ -2279,10 +2279,6 @@ static inline void igbvf_tx_queue_adv(struct igbvf_adapter *adapter,
tx_ring->buffer_info[first].next_to_watch = tx_desc;
tx_ring->next_to_use = i;
writel(i, adapter->hw.hw_addr + tx_ring->tail);
- /* we need this if more than one processor can write to our tail
- * at a time, it synchronizes IO on IA64/Altix systems
- */
- mmiowb();
}
static netdev_tx_t igbvf_xmit_frame_ring_adv(struct sk_buff *skb,
diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c
index 87a11879bf2d..f8d692f6aa4f 100644
--- a/drivers/net/ethernet/intel/igc/igc_main.c
+++ b/drivers/net/ethernet/intel/igc/igc_main.c
@@ -892,11 +892,6 @@ static int igc_tx_map(struct igc_ring *tx_ring,
if (netif_xmit_stopped(txring_txq(tx_ring)) || !skb->xmit_more) {
writel(i, tx_ring->tail);
-
- /* we need this if more than one processor can write to our tail
- * at a time, it synchronizes IO on IA64/Altix systems
- */
- mmiowb();
}
return 0;
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index e100054a3765..99e23cf6a73a 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -8299,11 +8299,6 @@ static int ixgbe_tx_map(struct ixgbe_ring *tx_ring,
if (netif_xmit_stopped(txring_txq(tx_ring)) || !skb->xmit_more) {
writel(i, tx_ring->tail);
-
- /* we need this if more than one processor can write to our tail
- * at a time, it synchronizes IO on IA64/Altix systems
- */
- mmiowb();
}
return 0;
diff --git a/drivers/net/ethernet/marvell/sky2.c b/drivers/net/ethernet/marvell/sky2.c
index 8b3495ee2b6e..49486c10ef81 100644
--- a/drivers/net/ethernet/marvell/sky2.c
+++ b/drivers/net/ethernet/marvell/sky2.c
@@ -1139,9 +1139,6 @@ static inline void sky2_put_idx(struct sky2_hw *hw, unsigned q, u16 idx)
/* Make sure write' to descriptors are complete before we tell hardware */
wmb();
sky2_write16(hw, Y2_QADDR(q, PREF_UNIT_PUT_IDX), idx);
-
- /* Synchronize I/O on since next processor may write to tail */
- mmiowb();
}
@@ -1354,7 +1351,6 @@ stopped:
/* reset the Rx prefetch unit */
sky2_write32(hw, Y2_QADDR(rxq, PREF_UNIT_CTRL), PREF_UNIT_RST_SET);
- mmiowb();
}
/* Clean out receive buffer area, assumes receiver hardware stopped */
diff --git a/drivers/net/ethernet/mellanox/mlx4/catas.c b/drivers/net/ethernet/mellanox/mlx4/catas.c
index c81d15bf259c..87e90b5d4d7d 100644
--- a/drivers/net/ethernet/mellanox/mlx4/catas.c
+++ b/drivers/net/ethernet/mellanox/mlx4/catas.c
@@ -129,10 +129,6 @@ static int mlx4_reset_slave(struct mlx4_dev *dev)
comm_flags = rst_req << COM_CHAN_RST_REQ_OFFSET;
__raw_writel((__force u32)cpu_to_be32(comm_flags),
(__iomem char *)priv->mfunc.comm + MLX4_COMM_CHAN_FLAGS);
- /* Make sure that our comm channel write doesn't
- * get mixed in with writes from another CPU.
- */
- mmiowb();
end = msecs_to_jiffies(MLX4_COMM_TIME) + jiffies;
while (time_before(jiffies, end)) {
diff --git a/drivers/net/ethernet/mellanox/mlx4/cmd.c b/drivers/net/ethernet/mellanox/mlx4/cmd.c
index a5d5d6fc1da0..c678344d22a2 100644
--- a/drivers/net/ethernet/mellanox/mlx4/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx4/cmd.c
@@ -281,7 +281,6 @@ static int mlx4_comm_cmd_post(struct mlx4_dev *dev, u8 cmd, u16 param)
val = param | (cmd << 16) | (priv->cmd.comm_toggle << 31);
__raw_writel((__force u32) cpu_to_be32(val),
&priv->mfunc.comm->slave_write);
- mmiowb();
mutex_unlock(&dev->persist->device_state_mutex);
return 0;
}
@@ -496,12 +495,6 @@ static int mlx4_cmd_post(struct mlx4_dev *dev, u64 in_param, u64 out_param,
(op_modifier << HCR_OPMOD_SHIFT) |
op), hcr + 6);
- /*
- * Make sure that our HCR writes don't get mixed in with
- * writes from another CPU starting a FW command.
- */
- mmiowb();
-
cmd->toggle = cmd->toggle ^ 1;
ret = 0;
@@ -2206,7 +2199,6 @@ static void mlx4_master_do_cmd(struct mlx4_dev *dev, int slave, u8 cmd,
}
__raw_writel((__force u32) cpu_to_be32(reply),
&priv->mfunc.comm[slave].slave_read);
- mmiowb();
return;
@@ -2410,7 +2402,6 @@ int mlx4_multi_func_init(struct mlx4_dev *dev)
&priv->mfunc.comm[i].slave_write);
__raw_writel((__force u32) 0,
&priv->mfunc.comm[i].slave_read);
- mmiowb();
for (port = 1; port <= MLX4_MAX_PORTS; port++) {
struct mlx4_vport_state *admin_vport;
struct mlx4_vport_state *oper_vport;
@@ -2576,10 +2567,6 @@ void mlx4_report_internal_err_comm_event(struct mlx4_dev *dev)
slave_read |= (u32)COMM_CHAN_EVENT_INTERNAL_ERR;
__raw_writel((__force u32)cpu_to_be32(slave_read),
&priv->mfunc.comm[slave].slave_read);
- /* Make sure that our comm channel write doesn't
- * get mixed in with writes from another CPU.
- */
- mmiowb();
}
}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
index be48c6440251..c087d1014b09 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
@@ -917,7 +917,6 @@ static void cmd_work_handler(struct work_struct *work)
mlx5_core_dbg(dev, "writing 0x%x to command doorbell\n", 1 << ent->idx);
wmb();
iowrite32be(1 << ent->idx, &dev->iseg->cmd_dbell);
- mmiowb();
/* if not in polling don't use ent after this point */
if (cmd_mode == CMD_MODE_POLLING || poll_cmd) {
poll_timeout(ent);
diff --git a/drivers/net/ethernet/myricom/myri10ge/myri10ge.c b/drivers/net/ethernet/myricom/myri10ge/myri10ge.c
index e0340f778d8f..d8b7fba96d58 100644
--- a/drivers/net/ethernet/myricom/myri10ge/myri10ge.c
+++ b/drivers/net/ethernet/myricom/myri10ge/myri10ge.c
@@ -1439,7 +1439,6 @@ myri10ge_tx_done(struct myri10ge_slice_state *ss, int mcp_index)
tx->queue_active = 0;
put_be32(htonl(1), tx->send_stop);
mb();
- mmiowb();
}
__netif_tx_unlock(dev_queue);
}
@@ -2861,7 +2860,6 @@ again:
tx->queue_active = 1;
put_be32(htonl(1), tx->send_go);
mb();
- mmiowb();
}
tx->pkt_start++;
if ((avail - count) < MXGEFW_MAX_SEND_DESC) {
diff --git a/drivers/net/ethernet/neterion/s2io.c b/drivers/net/ethernet/neterion/s2io.c
index feda9644289d..3b2ae1a21678 100644
--- a/drivers/net/ethernet/neterion/s2io.c
+++ b/drivers/net/ethernet/neterion/s2io.c
@@ -4153,8 +4153,6 @@ static netdev_tx_t s2io_xmit(struct sk_buff *skb, struct net_device *dev)
writeq(val64, &tx_fifo->List_Control);
- mmiowb();
-
put_off++;
if (put_off == fifo->tx_curr_put_info.fifo_len + 1)
put_off = 0;
diff --git a/drivers/net/ethernet/neterion/vxge/vxge-main.c b/drivers/net/ethernet/neterion/vxge/vxge-main.c
index b877acec5cde..1d334f2e0a56 100644
--- a/drivers/net/ethernet/neterion/vxge/vxge-main.c
+++ b/drivers/net/ethernet/neterion/vxge/vxge-main.c
@@ -1826,7 +1826,6 @@ static int vxge_poll_msix(struct napi_struct *napi, int budget)
vxge_hw_channel_msix_unmask(
(struct __vxge_hw_channel *)ring->handle,
ring->rx_vector_no);
- mmiowb();
}
/* We are copying and returning the local variable, in case if after
@@ -2234,8 +2233,6 @@ static irqreturn_t vxge_tx_msix_handle(int irq, void *dev_id)
vxge_hw_channel_msix_unmask((struct __vxge_hw_channel *)fifo->handle,
fifo->tx_vector_no);
- mmiowb();
-
return IRQ_HANDLED;
}
@@ -2272,14 +2269,12 @@ vxge_alarm_msix_handle(int irq, void *dev_id)
*/
vxge_hw_vpath_msix_mask(vdev->vpaths[i].handle, msix_id);
vxge_hw_vpath_msix_clear(vdev->vpaths[i].handle, msix_id);
- mmiowb();
status = vxge_hw_vpath_alarm_process(vdev->vpaths[i].handle,
vdev->exec_mode);
if (status == VXGE_HW_OK) {
vxge_hw_vpath_msix_unmask(vdev->vpaths[i].handle,
msix_id);
- mmiowb();
continue;
}
vxge_debug_intr(VXGE_ERR,
diff --git a/drivers/net/ethernet/neterion/vxge/vxge-traffic.c b/drivers/net/ethernet/neterion/vxge/vxge-traffic.c
index 59e77e3086bb..709d20d9938f 100644
--- a/drivers/net/ethernet/neterion/vxge/vxge-traffic.c
+++ b/drivers/net/ethernet/neterion/vxge/vxge-traffic.c
@@ -1399,11 +1399,7 @@ static void __vxge_hw_non_offload_db_post(struct __vxge_hw_fifo *fifo,
VXGE_HW_NODBW_GET_NO_SNOOP(no_snoop),
&fifo->nofl_db->control_0);
- mmiowb();
-
writeq(txdl_ptr, &fifo->nofl_db->txdl_ptr);
-
- mmiowb();
}
/**
diff --git a/drivers/net/ethernet/qlogic/qed/qed_int.c b/drivers/net/ethernet/qlogic/qed/qed_int.c
index e23980e301b6..69e6a90edf2f 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_int.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_int.c
@@ -774,18 +774,12 @@ static inline u16 qed_attn_update_idx(struct qed_hwfn *p_hwfn,
{
u16 rc = 0, index;
- /* Make certain HW write took affect */
- mmiowb();
-
index = le16_to_cpu(p_sb_desc->sb_attn->sb_index);
if (p_sb_desc->index != index) {
p_sb_desc->index = index;
rc = QED_SB_ATT_IDX;
}
- /* Make certain we got a consistent view with HW */
- mmiowb();
-
return rc;
}
@@ -1170,7 +1164,6 @@ static void qed_sb_ack_attn(struct qed_hwfn *p_hwfn,
/* Both segments (interrupts & acks) are written to same place address;
* Need to guarantee all commands will be received (in-order) by HW.
*/
- mmiowb();
barrier();
}
@@ -1805,9 +1798,6 @@ static void qed_int_igu_enable_attn(struct qed_hwfn *p_hwfn,
qed_wr(p_hwfn, p_ptt, IGU_REG_TRAILING_EDGE_LATCH, 0xfff);
qed_wr(p_hwfn, p_ptt, IGU_REG_ATTENTION_ENABLE, 0xfff);
- /* Flush the writes to IGU */
- mmiowb();
-
/* Unmask AEU signals toward IGU */
qed_wr(p_hwfn, p_ptt, MISC_REG_AEU_MASK_ATTN_IGU, 0xff);
}
@@ -1871,9 +1861,6 @@ static void qed_int_igu_cleanup_sb(struct qed_hwfn *p_hwfn,
qed_wr(p_hwfn, p_ptt, IGU_REG_COMMAND_REG_CTRL, cmd_ctrl);
- /* Flush the write to IGU */
- mmiowb();
-
/* calculate where to read the status bit from */
sb_bit = 1 << (igu_sb_id % 32);
sb_bit_addr = igu_sb_id / 32 * sizeof(u32);
diff --git a/drivers/net/ethernet/qlogic/qed/qed_spq.c b/drivers/net/ethernet/qlogic/qed/qed_spq.c
index 79b311b86f66..f5f3c03b9dd2 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_spq.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_spq.c
@@ -341,9 +341,6 @@ void qed_eq_prod_update(struct qed_hwfn *p_hwfn, u16 prod)
USTORM_EQE_CONS_OFFSET(p_hwfn->rel_pf_id);
REG_WR16(p_hwfn, addr, prod);
-
- /* keep prod updates ordered */
- mmiowb();
}
int qed_eq_completion(struct qed_hwfn *p_hwfn, void *cookie)
diff --git a/drivers/net/ethernet/qlogic/qede/qede_ethtool.c b/drivers/net/ethernet/qlogic/qede/qede_ethtool.c
index b4c8949933f1..4555c0b161ef 100644
--- a/drivers/net/ethernet/qlogic/qede/qede_ethtool.c
+++ b/drivers/net/ethernet/qlogic/qede/qede_ethtool.c
@@ -1526,14 +1526,6 @@ static int qede_selftest_transmit_traffic(struct qede_dev *edev,
barrier();
writel(txq->tx_db.raw, txq->doorbell_addr);
- /* mmiowb is needed to synchronize doorbell writes from more than one
- * processor. It guarantees that the write arrives to the device before
- * the queue lock is released and another start_xmit is called (possibly
- * on another CPU). Without this barrier, the next doorbell can bypass
- * this doorbell. This is applicable to IA64/Altix systems.
- */
- mmiowb();
-
for (i = 0; i < QEDE_SELFTEST_POLL_COUNT; i++) {
if (qede_txq_has_work(txq))
break;
diff --git a/drivers/net/ethernet/qlogic/qede/qede_fp.c b/drivers/net/ethernet/qlogic/qede/qede_fp.c
index 31b046e24565..6f7e3622c6b4 100644
--- a/drivers/net/ethernet/qlogic/qede/qede_fp.c
+++ b/drivers/net/ethernet/qlogic/qede/qede_fp.c
@@ -580,14 +580,6 @@ void qede_update_rx_prod(struct qede_dev *edev, struct qede_rx_queue *rxq)
internal_ram_wr(rxq->hw_rxq_prod_addr, sizeof(rx_prods),
(u32 *)&rx_prods);
-
- /* mmiowb is needed to synchronize doorbell writes from more than one
- * processor. It guarantees that the write arrives to the device before
- * the napi lock is released and another qede_poll is called (possibly
- * on another CPU). Without this barrier, the next doorbell can bypass
- * this doorbell. This is applicable to IA64/Altix systems.
- */
- mmiowb();
}
static void qede_get_rxhash(struct sk_buff *skb, u8 bitfields, __le32 rss_hash)
diff --git a/drivers/net/ethernet/qlogic/qla3xxx.c b/drivers/net/ethernet/qlogic/qla3xxx.c
index b61b88cbc0c7..457444894d80 100644
--- a/drivers/net/ethernet/qlogic/qla3xxx.c
+++ b/drivers/net/ethernet/qlogic/qla3xxx.c
@@ -1858,7 +1858,6 @@ static void ql_update_small_bufq_prod_index(struct ql3_adapter *qdev)
wmb();
writel_relaxed(qdev->small_buf_q_producer_index,
&port_regs->CommonRegs.rxSmallQProducerIndex);
- mmiowb();
}
}
diff --git a/drivers/net/ethernet/qlogic/qlge/qlge.h b/drivers/net/ethernet/qlogic/qlge/qlge.h
index 3e71b65a9546..ad7c5eb8a3b6 100644
--- a/drivers/net/ethernet/qlogic/qlge/qlge.h
+++ b/drivers/net/ethernet/qlogic/qlge/qlge.h
@@ -2181,7 +2181,6 @@ static inline void ql_write32(const struct ql_adapter *qdev, int reg, u32 val)
static inline void ql_write_db_reg(u32 val, void __iomem *addr)
{
writel(val, addr);
- mmiowb();
}
/*
diff --git a/drivers/net/ethernet/qlogic/qlge/qlge_main.c b/drivers/net/ethernet/qlogic/qlge/qlge_main.c
index 07e1c623048e..6cae33072496 100644
--- a/drivers/net/ethernet/qlogic/qlge/qlge_main.c
+++ b/drivers/net/ethernet/qlogic/qlge/qlge_main.c
@@ -2695,7 +2695,6 @@ static netdev_tx_t qlge_send(struct sk_buff *skb, struct net_device *ndev)
wmb();
ql_write_db_reg_relaxed(tx_ring->prod_idx, tx_ring->prod_idx_db_reg);
- mmiowb();
netif_printk(qdev, tx_queued, KERN_DEBUG, qdev->ndev,
"tx queued, slot %d, len %d\n",
tx_ring->prod_idx, skb->len);
diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
index 8154b38c08f7..316b47741d3f 100644
--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -728,7 +728,6 @@ static irqreturn_t ravb_emac_interrupt(int irq, void *dev_id)
spin_lock(&priv->lock);
ravb_emac_interrupt_unlocked(ndev);
- mmiowb();
spin_unlock(&priv->lock);
return IRQ_HANDLED;
}
@@ -848,7 +847,6 @@ static irqreturn_t ravb_interrupt(int irq, void *dev_id)
result = IRQ_HANDLED;
}
- mmiowb();
spin_unlock(&priv->lock);
return result;
}
@@ -881,7 +879,6 @@ static irqreturn_t ravb_multi_interrupt(int irq, void *dev_id)
result = IRQ_HANDLED;
}
- mmiowb();
spin_unlock(&priv->lock);
return result;
}
@@ -898,7 +895,6 @@ static irqreturn_t ravb_dma_interrupt(int irq, void *dev_id, int q)
if (ravb_queue_interrupt(ndev, q))
result = IRQ_HANDLED;
- mmiowb();
spin_unlock(&priv->lock);
return result;
}
@@ -943,7 +939,6 @@ static int ravb_poll(struct napi_struct *napi, int budget)
ravb_write(ndev, ~(mask | TIS_RESERVED), TIS);
ravb_tx_free(ndev, q, true);
netif_wake_subqueue(ndev, q);
- mmiowb();
spin_unlock_irqrestore(&priv->lock, flags);
}
}
@@ -959,7 +954,6 @@ static int ravb_poll(struct napi_struct *napi, int budget)
ravb_write(ndev, mask, RIE0);
ravb_write(ndev, mask, TIE);
}
- mmiowb();
spin_unlock_irqrestore(&priv->lock, flags);
/* Receive error message handling */
@@ -1008,7 +1002,6 @@ static void ravb_adjust_link(struct net_device *ndev)
if (priv->no_avb_link && phydev->link)
ravb_rcv_snd_enable(ndev);
- mmiowb();
spin_unlock_irqrestore(&priv->lock, flags);
if (new_state && netif_msg_link(priv))
@@ -1601,7 +1594,6 @@ static netdev_tx_t ravb_start_xmit(struct sk_buff *skb, struct net_device *ndev)
netif_stop_subqueue(ndev, q);
exit:
- mmiowb();
spin_unlock_irqrestore(&priv->lock, flags);
return NETDEV_TX_OK;
@@ -1673,7 +1665,6 @@ static void ravb_set_rx_mode(struct net_device *ndev)
spin_lock_irqsave(&priv->lock, flags);
ravb_modify(ndev, ECMR, ECMR_PRM,
ndev->flags & IFF_PROMISC ? ECMR_PRM : 0);
- mmiowb();
spin_unlock_irqrestore(&priv->lock, flags);
}
diff --git a/drivers/net/ethernet/renesas/ravb_ptp.c b/drivers/net/ethernet/renesas/ravb_ptp.c
index dce2a40a31e3..9a42580693cb 100644
--- a/drivers/net/ethernet/renesas/ravb_ptp.c
+++ b/drivers/net/ethernet/renesas/ravb_ptp.c
@@ -196,7 +196,6 @@ static int ravb_ptp_extts(struct ptp_clock_info *ptp,
ravb_write(ndev, GIE_PTCS, GIE);
else
ravb_write(ndev, GID_PTCD, GID);
- mmiowb();
spin_unlock_irqrestore(&priv->lock, flags);
return 0;
@@ -259,7 +258,6 @@ static int ravb_ptp_perout(struct ptp_clock_info *ptp,
else
ravb_write(ndev, GID_PTMD0, GID);
}
- mmiowb();
spin_unlock_irqrestore(&priv->lock, flags);
return error;
@@ -331,7 +329,6 @@ void ravb_ptp_init(struct net_device *ndev, struct platform_device *pdev)
spin_lock_irqsave(&priv->lock, flags);
ravb_wait(ndev, GCCR, GCCR_TCR, GCCR_TCR_NOREQ);
ravb_modify(ndev, GCCR, GCCR_TCSS, GCCR_TCSS_ADJGPTP);
- mmiowb();
spin_unlock_irqrestore(&priv->lock, flags);
priv->ptp.clock = ptp_clock_register(&priv->ptp.info, &pdev->dev);
diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index e33af371b169..ed30aebdb941 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -2010,7 +2010,6 @@ static void sh_eth_adjust_link(struct net_device *ndev)
if ((mdp->cd->no_psr || mdp->no_ether_link) && phydev->link)
sh_eth_rcv_snd_enable(ndev);
- mmiowb();
spin_unlock_irqrestore(&mdp->lock, flags);
if (new_state && netif_msg_link(mdp))
diff --git a/drivers/net/ethernet/sfc/falcon/io.h b/drivers/net/ethernet/sfc/falcon/io.h
index 7085ee1d5e2b..c3577643fbda 100644
--- a/drivers/net/ethernet/sfc/falcon/io.h
+++ b/drivers/net/ethernet/sfc/falcon/io.h
@@ -108,7 +108,6 @@ static inline void ef4_writeo(struct ef4_nic *efx, const ef4_oword_t *value,
_ef4_writed(efx, value->u32[2], reg + 8);
_ef4_writed(efx, value->u32[3], reg + 12);
#endif
- mmiowb();
spin_unlock_irqrestore(&efx->biu_lock, flags);
}
@@ -130,7 +129,6 @@ static inline void ef4_sram_writeq(struct ef4_nic *efx, void __iomem *membase,
__raw_writel((__force u32)value->u32[0], membase + addr);
__raw_writel((__force u32)value->u32[1], membase + addr + 4);
#endif
- mmiowb();
spin_unlock_irqrestore(&efx->biu_lock, flags);
}
diff --git a/drivers/net/ethernet/sfc/io.h b/drivers/net/ethernet/sfc/io.h
index 89563170af52..2774a10f44e9 100644
--- a/drivers/net/ethernet/sfc/io.h
+++ b/drivers/net/ethernet/sfc/io.h
@@ -120,7 +120,6 @@ static inline void efx_writeo(struct efx_nic *efx, const efx_oword_t *value,
_efx_writed(efx, value->u32[2], reg + 8);
_efx_writed(efx, value->u32[3], reg + 12);
#endif
- mmiowb();
spin_unlock_irqrestore(&efx->biu_lock, flags);
}
@@ -142,7 +141,6 @@ static inline void efx_sram_writeq(struct efx_nic *efx, void __iomem *membase,
__raw_writel((__force u32)value->u32[0], membase + addr);
__raw_writel((__force u32)value->u32[1], membase + addr + 4);
#endif
- mmiowb();
spin_unlock_irqrestore(&efx->biu_lock, flags);
}
diff --git a/drivers/net/ethernet/silan/sc92031.c b/drivers/net/ethernet/silan/sc92031.c
index c07fd594fe71..db5dc8ce0aff 100644
--- a/drivers/net/ethernet/silan/sc92031.c
+++ b/drivers/net/ethernet/silan/sc92031.c
@@ -361,7 +361,6 @@ static void sc92031_disable_interrupts(struct net_device *dev)
/* stop interrupts */
iowrite32(0, port_base + IntrMask);
_sc92031_dummy_read(port_base);
- mmiowb();
/* wait for any concurrent interrupt/tasklet to finish */
synchronize_irq(priv->pdev->irq);
@@ -379,7 +378,6 @@ static void sc92031_enable_interrupts(struct net_device *dev)
wmb();
iowrite32(IntrBits, port_base + IntrMask);
- mmiowb();
}
static void _sc92031_disable_tx_rx(struct net_device *dev)
@@ -867,7 +865,6 @@ out:
rmb();
iowrite32(intr_mask, port_base + IntrMask);
- mmiowb();
spin_unlock(&priv->lock);
}
@@ -901,7 +898,6 @@ out_none:
rmb();
iowrite32(intr_mask, port_base + IntrMask);
- mmiowb();
return IRQ_NONE;
}
@@ -978,7 +974,6 @@ static netdev_tx_t sc92031_start_xmit(struct sk_buff *skb,
iowrite32(priv->tx_bufs_dma_addr + entry * TX_BUF_SIZE,
port_base + TxAddr0 + entry * 4);
iowrite32(tx_status, port_base + TxStatus0 + entry * 4);
- mmiowb();
if (priv->tx_head - priv->tx_tail >= NUM_TX_DESC)
netif_stop_queue(dev);
@@ -1024,7 +1019,6 @@ static int sc92031_open(struct net_device *dev)
spin_lock_bh(&priv->lock);
_sc92031_reset(dev);
- mmiowb();
spin_unlock_bh(&priv->lock);
sc92031_enable_interrupts(dev);
@@ -1060,7 +1054,6 @@ static int sc92031_stop(struct net_device *dev)
_sc92031_disable_tx_rx(dev);
_sc92031_tx_clear(dev);
- mmiowb();
spin_unlock_bh(&priv->lock);
@@ -1081,7 +1074,6 @@ static void sc92031_set_multicast_list(struct net_device *dev)
_sc92031_set_mar(dev);
_sc92031_set_rx_config(dev);
- mmiowb();
spin_unlock_bh(&priv->lock);
}
@@ -1098,7 +1090,6 @@ static void sc92031_tx_timeout(struct net_device *dev)
priv->tx_timeouts++;
_sc92031_reset(dev);
- mmiowb();
spin_unlock(&priv->lock);
@@ -1140,7 +1131,6 @@ sc92031_ethtool_get_link_ksettings(struct net_device *dev,
output_status = _sc92031_mii_read(port_base, MII_OutputStatus);
_sc92031_mii_scan(port_base);
- mmiowb();
spin_unlock_bh(&priv->lock);
@@ -1311,7 +1301,6 @@ static int sc92031_ethtool_set_wol(struct net_device *dev,
priv->pm_config = pm_config;
iowrite32(pm_config, port_base + PMConfig);
- mmiowb();
spin_unlock_bh(&priv->lock);
@@ -1337,7 +1326,6 @@ static int sc92031_ethtool_nway_reset(struct net_device *dev)
out:
_sc92031_mii_scan(port_base);
- mmiowb();
spin_unlock_bh(&priv->lock);
@@ -1530,7 +1518,6 @@ static int sc92031_suspend(struct pci_dev *pdev, pm_message_t state)
_sc92031_disable_tx_rx(dev);
_sc92031_tx_clear(dev);
- mmiowb();
spin_unlock_bh(&priv->lock);
@@ -1555,7 +1542,6 @@ static int sc92031_resume(struct pci_dev *pdev)
spin_lock_bh(&priv->lock);
_sc92031_reset(dev);
- mmiowb();
spin_unlock_bh(&priv->lock);
sc92031_enable_interrupts(dev);
diff --git a/drivers/net/ethernet/via/via-rhine.c b/drivers/net/ethernet/via/via-rhine.c
index 33949248c829..ab55416a10fa 100644
--- a/drivers/net/ethernet/via/via-rhine.c
+++ b/drivers/net/ethernet/via/via-rhine.c
@@ -571,7 +571,6 @@ static void rhine_ack_events(struct rhine_private *rp, u32 mask)
if (rp->quirks & rqStatusWBRace)
iowrite8(mask >> 16, ioaddr + IntrStatus2);
iowrite16(mask, ioaddr + IntrStatus);
- mmiowb();
}
/*
@@ -863,7 +862,6 @@ static int rhine_napipoll(struct napi_struct *napi, int budget)
if (work_done < budget) {
napi_complete_done(napi, work_done);
iowrite16(enable_mask, ioaddr + IntrEnable);
- mmiowb();
}
return work_done;
}
@@ -1893,7 +1891,6 @@ static netdev_tx_t rhine_start_tx(struct sk_buff *skb,
static void rhine_irq_disable(struct rhine_private *rp)
{
iowrite16(0x0000, rp->base + IntrEnable);
- mmiowb();
}
/* The interrupt handler does all of the Rx thread work and cleans up
diff --git a/drivers/net/ethernet/wiznet/w5100.c b/drivers/net/ethernet/wiznet/w5100.c
index d8ba512f166a..1713c2d2dccf 100644
--- a/drivers/net/ethernet/wiznet/w5100.c
+++ b/drivers/net/ethernet/wiznet/w5100.c
@@ -219,7 +219,6 @@ static inline int __w5100_write_direct(struct net_device *ndev, u32 addr,
static inline int w5100_write_direct(struct net_device *ndev, u32 addr, u8 data)
{
__w5100_write_direct(ndev, addr, data);
- mmiowb();
return 0;
}
@@ -236,7 +235,6 @@ static int w5100_write16_direct(struct net_device *ndev, u32 addr, u16 data)
{
__w5100_write_direct(ndev, addr, data >> 8);
__w5100_write_direct(ndev, addr + 1, data);
- mmiowb();
return 0;
}
@@ -260,8 +258,6 @@ static int w5100_writebulk_direct(struct net_device *ndev, u32 addr,
for (i = 0; i < len; i++, addr++)
__w5100_write_direct(ndev, addr, *buf++);
- mmiowb();
-
return 0;
}
@@ -375,7 +371,6 @@ static int w5100_readbulk_indirect(struct net_device *ndev, u32 addr, u8 *buf,
for (i = 0; i < len; i++)
*buf++ = w5100_read_direct(ndev, W5100_IDM_DR);
- mmiowb();
spin_unlock_irqrestore(&mmio_priv->reg_lock, flags);
return 0;
@@ -394,7 +389,6 @@ static int w5100_writebulk_indirect(struct net_device *ndev, u32 addr,
for (i = 0; i < len; i++)
__w5100_write_direct(ndev, W5100_IDM_DR, *buf++);
- mmiowb();
spin_unlock_irqrestore(&mmio_priv->reg_lock, flags);
return 0;
diff --git a/drivers/net/ethernet/wiznet/w5300.c b/drivers/net/ethernet/wiznet/w5300.c
index f9da5d6172e3..3f03eecc0479 100644
--- a/drivers/net/ethernet/wiznet/w5300.c
+++ b/drivers/net/ethernet/wiznet/w5300.c
@@ -141,7 +141,6 @@ static u16 w5300_read_indirect(struct w5300_priv *priv, u16 addr)
spin_lock_irqsave(&priv->reg_lock, flags);
w5300_write_direct(priv, W5300_IDM_AR, addr);
- mmiowb();
data = w5300_read_direct(priv, W5300_IDM_DR);
spin_unlock_irqrestore(&priv->reg_lock, flags);
@@ -154,9 +153,7 @@ static void w5300_write_indirect(struct w5300_priv *priv, u16 addr, u16 data)
spin_lock_irqsave(&priv->reg_lock, flags);
w5300_write_direct(priv, W5300_IDM_AR, addr);
- mmiowb();
w5300_write_direct(priv, W5300_IDM_DR, data);
- mmiowb();
spin_unlock_irqrestore(&priv->reg_lock, flags);
}
@@ -192,7 +189,6 @@ static int w5300_command(struct w5300_priv *priv, u16 cmd)
unsigned long timeout = jiffies + msecs_to_jiffies(100);
w5300_write(priv, W5300_S0_CR, cmd);
- mmiowb();
while (w5300_read(priv, W5300_S0_CR) != 0) {
if (time_after(jiffies, timeout))
@@ -241,18 +237,15 @@ static void w5300_write_macaddr(struct w5300_priv *priv)
w5300_write(priv, W5300_SHARH,
ndev->dev_addr[4] << 8 |
ndev->dev_addr[5]);
- mmiowb();
}
static void w5300_hw_reset(struct w5300_priv *priv)
{
w5300_write_direct(priv, W5300_MR, MR_RST);
- mmiowb();
mdelay(5);
w5300_write_direct(priv, W5300_MR, priv->indirect ?
MR_WDF(7) | MR_PB | MR_IND :
MR_WDF(7) | MR_PB);
- mmiowb();
w5300_write(priv, W5300_IMR, 0);
w5300_write_macaddr(priv);
@@ -264,24 +257,20 @@ static void w5300_hw_reset(struct w5300_priv *priv)
w5300_write32(priv, W5300_TMSRL, 64 << 24);
w5300_write32(priv, W5300_TMSRH, 0);
w5300_write(priv, W5300_MTYPE, 0x00ff);
- mmiowb();
}
static void w5300_hw_start(struct w5300_priv *priv)
{
w5300_write(priv, W5300_S0_MR, priv->promisc ?
S0_MR_MACRAW : S0_MR_MACRAW_MF);
- mmiowb();
w5300_command(priv, S0_CR_OPEN);
w5300_write(priv, W5300_S0_IMR, S0_IR_RECV | S0_IR_SENDOK);
w5300_write(priv, W5300_IMR, IR_S0);
- mmiowb();
}
static void w5300_hw_close(struct w5300_priv *priv)
{
w5300_write(priv, W5300_IMR, 0);
- mmiowb();
w5300_command(priv, S0_CR_CLOSE);
}
@@ -372,7 +361,6 @@ static netdev_tx_t w5300_start_tx(struct sk_buff *skb, struct net_device *ndev)
netif_stop_queue(ndev);
w5300_write_frame(priv, skb->data, skb->len);
- mmiowb();
ndev->stats.tx_packets++;
ndev->stats.tx_bytes += skb->len;
dev_kfree_skb(skb);
@@ -419,7 +407,6 @@ static int w5300_napi_poll(struct napi_struct *napi, int budget)
if (rx_count < budget) {
napi_complete_done(napi, rx_count);
w5300_write(priv, W5300_IMR, IR_S0);
- mmiowb();
}
return rx_count;
@@ -434,7 +421,6 @@ static irqreturn_t w5300_interrupt(int irq, void *ndev_instance)
if (!ir)
return IRQ_NONE;
w5300_write(priv, W5300_S0_IR, ir);
- mmiowb();
if (ir & S0_IR_SENDOK) {
netif_dbg(priv, tx_done, ndev, "tx done\n");
@@ -444,7 +430,6 @@ static irqreturn_t w5300_interrupt(int irq, void *ndev_instance)
if (ir & S0_IR_RECV) {
if (napi_schedule_prep(&priv->napi)) {
w5300_write(priv, W5300_IMR, 0);
- mmiowb();
__napi_schedule(&priv->napi);
}
}