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Message-Id: <935d637e23f2ef6f6187af426eeda70793d291bd.1282531322.git.joe@perches.com>
Date: Sun, 22 Aug 2010 20:02:01 -0700
From: Joe Perches <joe@...ches.com>
To: netdev@...r.kernel.org
Cc: Jeff Kirsher <jeffrey.t.kirsher@...el.com>,
Jesse Brandeburg <jesse.brandeburg@...el.com>,
Bruce Allan <bruce.w.allan@...el.com>,
Alex Duyck <alexander.h.duyck@...el.com>,
PJ Waskiewicz <peter.p.waskiewicz.jr@...el.com>,
John Ronciak <john.ronciak@...el.com>,
e1000-devel@...ts.sourceforge.net, linux-kernel@...r.kernel.org
Subject: [PATCH net-next 3/3] drivers/net/ixgbe/ixgbe_main.c: Add ixgbe_psum
Reduce indentation in a couple of places
Add static function ixgbe_psum
Add temporary for adapter->stats
Signed-off-by: Joe Perches <joe@...ches.com>
---
drivers/net/ixgbe/ixgbe_main.c | 297 ++++++++++++++++++++--------------------
1 files changed, 151 insertions(+), 146 deletions(-)
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index 6e100d4..9911d4a 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -1634,34 +1634,35 @@ static void ixgbe_check_overtemp_task(struct work_struct *work)
struct ixgbe_hw *hw = &adapter->hw;
u32 eicr = adapter->interrupt_event;
- if (adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) {
- switch (hw->device_id) {
- case IXGBE_DEV_ID_82599_T3_LOM: {
- u32 autoneg;
- bool link_up = false;
-
- if (hw->mac.ops.check_link)
- hw->mac.ops.check_link(hw, &autoneg, &link_up, false);
-
- if (((eicr & IXGBE_EICR_GPI_SDP0) && (!link_up)) ||
- (eicr & IXGBE_EICR_LSC))
- /* Check if this is due to overtemp */
- if (hw->phy.ops.check_overtemp(hw) == IXGBE_ERR_OVERTEMP)
- break;
- }
+ if (!(adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE))
+ return;
+
+ switch (hw->device_id) {
+ case IXGBE_DEV_ID_82599_T3_LOM: {
+ u32 autoneg;
+ bool link_up = false;
+
+ if (hw->mac.ops.check_link)
+ hw->mac.ops.check_link(hw, &autoneg, &link_up, false);
+
+ if (((eicr & IXGBE_EICR_GPI_SDP0) && (!link_up)) ||
+ (eicr & IXGBE_EICR_LSC))
+ /* Check if this is due to overtemp */
+ if (hw->phy.ops.check_overtemp(hw) == IXGBE_ERR_OVERTEMP)
+ break;
+ return;
+ }
+ default:
+ if (!(eicr & IXGBE_EICR_GPI_SDP0))
return;
- default:
- if (!(eicr & IXGBE_EICR_GPI_SDP0))
- return;
- break;
- }
- e_crit(drv, "Network adapter has been stopped because it has "
- "over heated. Restart the computer. If the problem "
- "persists, power off the system and replace the "
- "adapter\n");
- /* write to clear the interrupt */
- IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_GPI_SDP0);
+ break;
}
+ e_crit(drv,
+ "Network adapter has been stopped because it has over heated. "
+ "Restart the computer. If the problem persists, "
+ "power off the system and replace the adapter\n");
+ /* write to clear the interrupt */
+ IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_GPI_SDP0);
}
static void ixgbe_check_fan_failure(struct ixgbe_adapter *adapter, u32 eicr)
@@ -5396,6 +5397,7 @@ void ixgbe_update_stats(struct ixgbe_adapter *adapter)
u64 total_mpc = 0;
u32 i, missed_rx = 0, mpc, bprc, lxon, lxoff, xon_off_tot;
u64 non_eop_descs = 0, restart_queue = 0;
+ struct ixgbe_hw_stats *hwstats = &adapter->stats;
if (test_bit(__IXGBE_DOWN, &adapter->state) ||
test_bit(__IXGBE_RESETTING, &adapter->state))
@@ -5406,7 +5408,7 @@ void ixgbe_update_stats(struct ixgbe_adapter *adapter)
u64 rsc_flush = 0;
for (i = 0; i < 16; i++)
adapter->hw_rx_no_dma_resources +=
- IXGBE_READ_REG(hw, IXGBE_QPRDC(i));
+ IXGBE_READ_REG(hw, IXGBE_QPRDC(i));
for (i = 0; i < adapter->num_rx_queues; i++) {
rsc_count += adapter->rx_ring[i]->rsc_count;
rsc_flush += adapter->rx_ring[i]->rsc_flush;
@@ -5424,121 +5426,118 @@ void ixgbe_update_stats(struct ixgbe_adapter *adapter)
non_eop_descs += adapter->rx_ring[i]->non_eop_descs;
adapter->non_eop_descs = non_eop_descs;
- adapter->stats.crcerrs += IXGBE_READ_REG(hw, IXGBE_CRCERRS);
+ hwstats->crcerrs += IXGBE_READ_REG(hw, IXGBE_CRCERRS);
for (i = 0; i < 8; i++) {
/* for packet buffers not used, the register should read 0 */
mpc = IXGBE_READ_REG(hw, IXGBE_MPC(i));
missed_rx += mpc;
- adapter->stats.mpc[i] += mpc;
- total_mpc += adapter->stats.mpc[i];
+ hwstats->mpc[i] += mpc;
+ total_mpc += hwstats->mpc[i];
if (hw->mac.type == ixgbe_mac_82598EB)
- adapter->stats.rnbc[i] += IXGBE_READ_REG(hw, IXGBE_RNBC(i));
- adapter->stats.qptc[i] += IXGBE_READ_REG(hw, IXGBE_QPTC(i));
- adapter->stats.qbtc[i] += IXGBE_READ_REG(hw, IXGBE_QBTC(i));
- adapter->stats.qprc[i] += IXGBE_READ_REG(hw, IXGBE_QPRC(i));
- adapter->stats.qbrc[i] += IXGBE_READ_REG(hw, IXGBE_QBRC(i));
+ hwstats->rnbc[i] += IXGBE_READ_REG(hw, IXGBE_RNBC(i));
+ hwstats->qptc[i] += IXGBE_READ_REG(hw, IXGBE_QPTC(i));
+ hwstats->qbtc[i] += IXGBE_READ_REG(hw, IXGBE_QBTC(i));
+ hwstats->qprc[i] += IXGBE_READ_REG(hw, IXGBE_QPRC(i));
+ hwstats->qbrc[i] += IXGBE_READ_REG(hw, IXGBE_QBRC(i));
if (hw->mac.type == ixgbe_mac_82599EB) {
- adapter->stats.pxonrxc[i] += IXGBE_READ_REG(hw,
- IXGBE_PXONRXCNT(i));
- adapter->stats.pxoffrxc[i] += IXGBE_READ_REG(hw,
- IXGBE_PXOFFRXCNT(i));
- adapter->stats.qprdc[i] += IXGBE_READ_REG(hw, IXGBE_QPRDC(i));
+ hwstats->pxonrxc[i] +=
+ IXGBE_READ_REG(hw, IXGBE_PXONRXCNT(i));
+ hwstats->pxoffrxc[i] +=
+ IXGBE_READ_REG(hw, IXGBE_PXOFFRXCNT(i));
+ hwstats->qprdc[i] += IXGBE_READ_REG(hw, IXGBE_QPRDC(i));
} else {
- adapter->stats.pxonrxc[i] += IXGBE_READ_REG(hw,
- IXGBE_PXONRXC(i));
- adapter->stats.pxoffrxc[i] += IXGBE_READ_REG(hw,
- IXGBE_PXOFFRXC(i));
+ hwstats->pxonrxc[i] +=
+ IXGBE_READ_REG(hw, IXGBE_PXONRXC(i));
+ hwstats->pxoffrxc[i] +=
+ IXGBE_READ_REG(hw, IXGBE_PXOFFRXC(i));
}
- adapter->stats.pxontxc[i] += IXGBE_READ_REG(hw,
- IXGBE_PXONTXC(i));
- adapter->stats.pxofftxc[i] += IXGBE_READ_REG(hw,
- IXGBE_PXOFFTXC(i));
+ hwstats->pxontxc[i] += IXGBE_READ_REG(hw, IXGBE_PXONTXC(i));
+ hwstats->pxofftxc[i] += IXGBE_READ_REG(hw, IXGBE_PXOFFTXC(i));
}
- adapter->stats.gprc += IXGBE_READ_REG(hw, IXGBE_GPRC);
+ hwstats->gprc += IXGBE_READ_REG(hw, IXGBE_GPRC);
/* work around hardware counting issue */
- adapter->stats.gprc -= missed_rx;
+ hwstats->gprc -= missed_rx;
/* 82598 hardware only has a 32 bit counter in the high register */
if (hw->mac.type == ixgbe_mac_82599EB) {
u64 tmp;
- adapter->stats.gorc += IXGBE_READ_REG(hw, IXGBE_GORCL);
+ hwstats->gorc += IXGBE_READ_REG(hw, IXGBE_GORCL);
tmp = IXGBE_READ_REG(hw, IXGBE_GORCH) & 0xF;
/* 4 high bits of GORC */
- adapter->stats.gorc += (tmp << 32);
- adapter->stats.gotc += IXGBE_READ_REG(hw, IXGBE_GOTCL);
+ hwstats->gorc += (tmp << 32);
+ hwstats->gotc += IXGBE_READ_REG(hw, IXGBE_GOTCL);
tmp = IXGBE_READ_REG(hw, IXGBE_GOTCH) & 0xF;
/* 4 high bits of GOTC */
- adapter->stats.gotc += (tmp << 32);
- adapter->stats.tor += IXGBE_READ_REG(hw, IXGBE_TORL);
+ hwstats->gotc += (tmp << 32);
+ hwstats->tor += IXGBE_READ_REG(hw, IXGBE_TORL);
IXGBE_READ_REG(hw, IXGBE_TORH); /* to clear */
- adapter->stats.lxonrxc += IXGBE_READ_REG(hw, IXGBE_LXONRXCNT);
- adapter->stats.lxoffrxc += IXGBE_READ_REG(hw, IXGBE_LXOFFRXCNT);
- adapter->stats.fdirmatch += IXGBE_READ_REG(hw, IXGBE_FDIRMATCH);
- adapter->stats.fdirmiss += IXGBE_READ_REG(hw, IXGBE_FDIRMISS);
+ hwstats->lxonrxc += IXGBE_READ_REG(hw, IXGBE_LXONRXCNT);
+ hwstats->lxoffrxc += IXGBE_READ_REG(hw, IXGBE_LXOFFRXCNT);
+ hwstats->fdirmatch += IXGBE_READ_REG(hw, IXGBE_FDIRMATCH);
+ hwstats->fdirmiss += IXGBE_READ_REG(hw, IXGBE_FDIRMISS);
#ifdef IXGBE_FCOE
- adapter->stats.fccrc += IXGBE_READ_REG(hw, IXGBE_FCCRC);
- adapter->stats.fcoerpdc += IXGBE_READ_REG(hw, IXGBE_FCOERPDC);
- adapter->stats.fcoeprc += IXGBE_READ_REG(hw, IXGBE_FCOEPRC);
- adapter->stats.fcoeptc += IXGBE_READ_REG(hw, IXGBE_FCOEPTC);
- adapter->stats.fcoedwrc += IXGBE_READ_REG(hw, IXGBE_FCOEDWRC);
- adapter->stats.fcoedwtc += IXGBE_READ_REG(hw, IXGBE_FCOEDWTC);
+ hwstats->fccrc += IXGBE_READ_REG(hw, IXGBE_FCCRC);
+ hwstats->fcoerpdc += IXGBE_READ_REG(hw, IXGBE_FCOERPDC);
+ hwstats->fcoeprc += IXGBE_READ_REG(hw, IXGBE_FCOEPRC);
+ hwstats->fcoeptc += IXGBE_READ_REG(hw, IXGBE_FCOEPTC);
+ hwstats->fcoedwrc += IXGBE_READ_REG(hw, IXGBE_FCOEDWRC);
+ hwstats->fcoedwtc += IXGBE_READ_REG(hw, IXGBE_FCOEDWTC);
#endif /* IXGBE_FCOE */
} else {
- adapter->stats.lxonrxc += IXGBE_READ_REG(hw, IXGBE_LXONRXC);
- adapter->stats.lxoffrxc += IXGBE_READ_REG(hw, IXGBE_LXOFFRXC);
- adapter->stats.gorc += IXGBE_READ_REG(hw, IXGBE_GORCH);
- adapter->stats.gotc += IXGBE_READ_REG(hw, IXGBE_GOTCH);
- adapter->stats.tor += IXGBE_READ_REG(hw, IXGBE_TORH);
+ hwstats->lxonrxc += IXGBE_READ_REG(hw, IXGBE_LXONRXC);
+ hwstats->lxoffrxc += IXGBE_READ_REG(hw, IXGBE_LXOFFRXC);
+ hwstats->gorc += IXGBE_READ_REG(hw, IXGBE_GORCH);
+ hwstats->gotc += IXGBE_READ_REG(hw, IXGBE_GOTCH);
+ hwstats->tor += IXGBE_READ_REG(hw, IXGBE_TORH);
}
bprc = IXGBE_READ_REG(hw, IXGBE_BPRC);
- adapter->stats.bprc += bprc;
- adapter->stats.mprc += IXGBE_READ_REG(hw, IXGBE_MPRC);
+ hwstats->bprc += bprc;
+ hwstats->mprc += IXGBE_READ_REG(hw, IXGBE_MPRC);
if (hw->mac.type == ixgbe_mac_82598EB)
- adapter->stats.mprc -= bprc;
- adapter->stats.roc += IXGBE_READ_REG(hw, IXGBE_ROC);
- adapter->stats.prc64 += IXGBE_READ_REG(hw, IXGBE_PRC64);
- adapter->stats.prc127 += IXGBE_READ_REG(hw, IXGBE_PRC127);
- adapter->stats.prc255 += IXGBE_READ_REG(hw, IXGBE_PRC255);
- adapter->stats.prc511 += IXGBE_READ_REG(hw, IXGBE_PRC511);
- adapter->stats.prc1023 += IXGBE_READ_REG(hw, IXGBE_PRC1023);
- adapter->stats.prc1522 += IXGBE_READ_REG(hw, IXGBE_PRC1522);
- adapter->stats.rlec += IXGBE_READ_REG(hw, IXGBE_RLEC);
+ hwstats->mprc -= bprc;
+ hwstats->roc += IXGBE_READ_REG(hw, IXGBE_ROC);
+ hwstats->prc64 += IXGBE_READ_REG(hw, IXGBE_PRC64);
+ hwstats->prc127 += IXGBE_READ_REG(hw, IXGBE_PRC127);
+ hwstats->prc255 += IXGBE_READ_REG(hw, IXGBE_PRC255);
+ hwstats->prc511 += IXGBE_READ_REG(hw, IXGBE_PRC511);
+ hwstats->prc1023 += IXGBE_READ_REG(hw, IXGBE_PRC1023);
+ hwstats->prc1522 += IXGBE_READ_REG(hw, IXGBE_PRC1522);
+ hwstats->rlec += IXGBE_READ_REG(hw, IXGBE_RLEC);
lxon = IXGBE_READ_REG(hw, IXGBE_LXONTXC);
- adapter->stats.lxontxc += lxon;
+ hwstats->lxontxc += lxon;
lxoff = IXGBE_READ_REG(hw, IXGBE_LXOFFTXC);
- adapter->stats.lxofftxc += lxoff;
- adapter->stats.ruc += IXGBE_READ_REG(hw, IXGBE_RUC);
- adapter->stats.gptc += IXGBE_READ_REG(hw, IXGBE_GPTC);
- adapter->stats.mptc += IXGBE_READ_REG(hw, IXGBE_MPTC);
+ hwstats->lxofftxc += lxoff;
+ hwstats->ruc += IXGBE_READ_REG(hw, IXGBE_RUC);
+ hwstats->gptc += IXGBE_READ_REG(hw, IXGBE_GPTC);
+ hwstats->mptc += IXGBE_READ_REG(hw, IXGBE_MPTC);
/*
* 82598 errata - tx of flow control packets is included in tx counters
*/
xon_off_tot = lxon + lxoff;
- adapter->stats.gptc -= xon_off_tot;
- adapter->stats.mptc -= xon_off_tot;
- adapter->stats.gotc -= (xon_off_tot * (ETH_ZLEN + ETH_FCS_LEN));
- adapter->stats.ruc += IXGBE_READ_REG(hw, IXGBE_RUC);
- adapter->stats.rfc += IXGBE_READ_REG(hw, IXGBE_RFC);
- adapter->stats.rjc += IXGBE_READ_REG(hw, IXGBE_RJC);
- adapter->stats.tpr += IXGBE_READ_REG(hw, IXGBE_TPR);
- adapter->stats.ptc64 += IXGBE_READ_REG(hw, IXGBE_PTC64);
- adapter->stats.ptc64 -= xon_off_tot;
- adapter->stats.ptc127 += IXGBE_READ_REG(hw, IXGBE_PTC127);
- adapter->stats.ptc255 += IXGBE_READ_REG(hw, IXGBE_PTC255);
- adapter->stats.ptc511 += IXGBE_READ_REG(hw, IXGBE_PTC511);
- adapter->stats.ptc1023 += IXGBE_READ_REG(hw, IXGBE_PTC1023);
- adapter->stats.ptc1522 += IXGBE_READ_REG(hw, IXGBE_PTC1522);
- adapter->stats.bptc += IXGBE_READ_REG(hw, IXGBE_BPTC);
+ hwstats->gptc -= xon_off_tot;
+ hwstats->mptc -= xon_off_tot;
+ hwstats->gotc -= (xon_off_tot * (ETH_ZLEN + ETH_FCS_LEN));
+ hwstats->ruc += IXGBE_READ_REG(hw, IXGBE_RUC);
+ hwstats->rfc += IXGBE_READ_REG(hw, IXGBE_RFC);
+ hwstats->rjc += IXGBE_READ_REG(hw, IXGBE_RJC);
+ hwstats->tpr += IXGBE_READ_REG(hw, IXGBE_TPR);
+ hwstats->ptc64 += IXGBE_READ_REG(hw, IXGBE_PTC64);
+ hwstats->ptc64 -= xon_off_tot;
+ hwstats->ptc127 += IXGBE_READ_REG(hw, IXGBE_PTC127);
+ hwstats->ptc255 += IXGBE_READ_REG(hw, IXGBE_PTC255);
+ hwstats->ptc511 += IXGBE_READ_REG(hw, IXGBE_PTC511);
+ hwstats->ptc1023 += IXGBE_READ_REG(hw, IXGBE_PTC1023);
+ hwstats->ptc1522 += IXGBE_READ_REG(hw, IXGBE_PTC1522);
+ hwstats->bptc += IXGBE_READ_REG(hw, IXGBE_BPTC);
/* Fill out the OS statistics structure */
- netdev->stats.multicast = adapter->stats.mprc;
+ netdev->stats.multicast = hwstats->mprc;
/* Rx Errors */
- netdev->stats.rx_errors = adapter->stats.crcerrs +
- adapter->stats.rlec;
+ netdev->stats.rx_errors = hwstats->crcerrs + hwstats->rlec;
netdev->stats.rx_dropped = 0;
- netdev->stats.rx_length_errors = adapter->stats.rlec;
- netdev->stats.rx_crc_errors = adapter->stats.crcerrs;
+ netdev->stats.rx_length_errors = hwstats->rlec;
+ netdev->stats.rx_crc_errors = hwstats->crcerrs;
netdev->stats.rx_missed_errors = total_mpc;
}
@@ -5868,6 +5867,50 @@ static int ixgbe_tso(struct ixgbe_adapter *adapter,
return false;
}
+static u32 ixgbe_psum(struct ixgbe_adapter *adapter, struct sk_buff *skb)
+{
+ u32 rtn = 0;
+ __be16 protocol;
+
+ if (skb->protocol == cpu_to_be16(ETH_P_8021Q))
+ protocol = ((const struct vlan_ethhdr *)skb->data)->
+ h_vlan_encapsulated_proto;
+ else
+ protocol = skb->protocol;
+
+ switch (protocol) {
+ case cpu_to_be16(ETH_P_IP):
+ rtn |= IXGBE_ADVTXD_TUCMD_IPV4;
+ switch (ip_hdr(skb)->protocol) {
+ case IPPROTO_TCP:
+ rtn |= IXGBE_ADVTXD_TUCMD_L4T_TCP;
+ break;
+ case IPPROTO_SCTP:
+ rtn |= IXGBE_ADVTXD_TUCMD_L4T_SCTP;
+ break;
+ }
+ break;
+ case cpu_to_be16(ETH_P_IPV6):
+ /* XXX what about other V6 headers?? */
+ switch (ipv6_hdr(skb)->nexthdr) {
+ case IPPROTO_TCP:
+ rtn |= IXGBE_ADVTXD_TUCMD_L4T_TCP;
+ break;
+ case IPPROTO_SCTP:
+ rtn |= IXGBE_ADVTXD_TUCMD_L4T_SCTP;
+ break;
+ }
+ break;
+ default:
+ if (unlikely(net_ratelimit()))
+ e_warn(probe, "partial checksum but proto=%x!\n",
+ skb->protocol);
+ break;
+ }
+
+ return rtn;
+}
+
static bool ixgbe_tx_csum(struct ixgbe_adapter *adapter,
struct ixgbe_ring *tx_ring,
struct sk_buff *skb, u32 tx_flags)
@@ -5898,46 +5941,8 @@ static bool ixgbe_tx_csum(struct ixgbe_adapter *adapter,
type_tucmd_mlhl |= (IXGBE_TXD_CMD_DEXT |
IXGBE_ADVTXD_DTYP_CTXT);
- if (skb->ip_summed == CHECKSUM_PARTIAL) {
- __be16 protocol;
-
- if (skb->protocol == cpu_to_be16(ETH_P_8021Q)) {
- const struct vlan_ethhdr *vhdr =
- (const struct vlan_ethhdr *)skb->data;
-
- protocol = vhdr->h_vlan_encapsulated_proto;
- } else {
- protocol = skb->protocol;
- }
-
- switch (protocol) {
- case cpu_to_be16(ETH_P_IP):
- type_tucmd_mlhl |= IXGBE_ADVTXD_TUCMD_IPV4;
- if (ip_hdr(skb)->protocol == IPPROTO_TCP)
- type_tucmd_mlhl |=
- IXGBE_ADVTXD_TUCMD_L4T_TCP;
- else if (ip_hdr(skb)->protocol == IPPROTO_SCTP)
- type_tucmd_mlhl |=
- IXGBE_ADVTXD_TUCMD_L4T_SCTP;
- break;
- case cpu_to_be16(ETH_P_IPV6):
- /* XXX what about other V6 headers?? */
- if (ipv6_hdr(skb)->nexthdr == IPPROTO_TCP)
- type_tucmd_mlhl |=
- IXGBE_ADVTXD_TUCMD_L4T_TCP;
- else if (ipv6_hdr(skb)->nexthdr == IPPROTO_SCTP)
- type_tucmd_mlhl |=
- IXGBE_ADVTXD_TUCMD_L4T_SCTP;
- break;
- default:
- if (unlikely(net_ratelimit())) {
- e_warn(probe, "partial checksum "
- "but proto=%x!\n",
- skb->protocol);
- }
- break;
- }
- }
+ if (skb->ip_summed == CHECKSUM_PARTIAL)
+ type_tucmd_mlhl |= ixgbe_psum(adapter, skb);
context_desc->type_tucmd_mlhl = cpu_to_le32(type_tucmd_mlhl);
/* use index zero for tx checksum offload */
--
1.7.2.19.g9a302
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