Merge tag 'net-6.7-rc9' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Including fixes from wireless and netfilter.

  We haven't accumulated much over the break. If it wasn't for the
  uninterrupted stream of fixes for Intel drivers this PR would be very
  slim. There was a handful of user reports, however, either they stood
  out because of the lower traffic or users have had more time to test
  over the break. The ones which are v6.7-relevant should be wrapped up.

  Current release - regressions:

   - Revert "net: ipv6/addrconf: clamp preferred_lft to the minimum
     required", it caused issues on networks where routers send prefixes
     with preferred_lft=0

   - wifi:
      - iwlwifi: pcie: don't synchronize IRQs from IRQ, prevent deadlock
      - mac80211: fix re-adding debugfs entries during reconfiguration

  Current release - new code bugs:

   - tcp: print AO/MD5 messages only if there are any keys

  Previous releases - regressions:

   - virtio_net: fix missing dma unmap for resize, prevent OOM

  Previous releases - always broken:

   - mptcp: prevent tcp diag from closing listener subflows

   - nf_tables:
      - set transport header offset for egress hook, fix IPv4 mangling
      - skip set commit for deleted/destroyed sets, avoid double deactivation

   - nat: make sure action is set for all ct states, fix openvswitch
     matching on ICMP packets in related state

   - eth: mlxbf_gige: fix receive hang under heavy traffic

   - eth: r8169: fix PCI error on system resume for RTL8168FP

   - net: add missing getsockopt(SO_TIMESTAMPING_NEW) and cmsg handling"

* tag 'net-6.7-rc9' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (52 commits)
  net/tcp: Only produce AO/MD5 logs if there are any keys
  net: Implement missing SO_TIMESTAMPING_NEW cmsg support
  bnxt_en: Remove mis-applied code from bnxt_cfg_ntp_filters()
  net: ravb: Wait for operating mode to be applied
  asix: Add check for usbnet_get_endpoints
  octeontx2-af: Re-enable MAC TX in otx2_stop processing
  octeontx2-af: Always configure NIX TX link credits based on max frame size
  net/smc: fix invalid link access in dumping SMC-R connections
  net/qla3xxx: fix potential memleak in ql_alloc_buffer_queues
  virtio_net: fix missing dma unmap for resize
  igc: Fix hicredit calculation
  ice: fix Get link status data length
  i40e: Restore VF MSI-X state during PCI reset
  i40e: fix use-after-free in i40e_aqc_add_filters()
  net: Save and restore msg_namelen in sock_sendmsg
  netfilter: nft_immediate: drop chain reference counter on error
  netfilter: nf_nat: fix action not being set for all ct states
  net: bcmgenet: Fix FCS generation for fragmented skbuffs
  mptcp: prevent tcp diag from closing listener subflows
  MAINTAINERS: add Geliang as reviewer for MPTCP
  ...

1 files changed, 42 insertions, 23 deletions

diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
index 664eda4b5a11..8649b3e90edb 100644
--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -66,16 +66,27 @@ int ravb_wait(struct net_device *ndev, enum ravb_reg reg, u32 mask, u32 value)
 	return -ETIMEDOUT;
 }
 
-static int ravb_config(struct net_device *ndev)
+static int ravb_set_opmode(struct net_device *ndev, u32 opmode)
 {
+	u32 csr_ops = 1U << (opmode & CCC_OPC);
+	u32 ccc_mask = CCC_OPC;
 	int error;
 
-	/* Set config mode */
-	ravb_modify(ndev, CCC, CCC_OPC, CCC_OPC_CONFIG);
-	/* Check if the operating mode is changed to the config mode */
-	error = ravb_wait(ndev, CSR, CSR_OPS, CSR_OPS_CONFIG);
-	if (error)
-		netdev_err(ndev, "failed to switch device to config mode\n");
+	/* If gPTP active in config mode is supported it needs to be configured
+	 * along with CSEL and operating mode in the same access. This is a
+	 * hardware limitation.
+	 */
+	if (opmode & CCC_GAC)
+		ccc_mask |= CCC_GAC | CCC_CSEL;
+
+	/* Set operating mode */
+	ravb_modify(ndev, CCC, ccc_mask, opmode);
+	/* Check if the operating mode is changed to the requested one */
+	error = ravb_wait(ndev, CSR, CSR_OPS, csr_ops);
+	if (error) {
+		netdev_err(ndev, "failed to switch device to requested mode (%u)\n",
+			   opmode & CCC_OPC);
+	}
 
 	return error;
 }
@@ -673,7 +684,7 @@ static int ravb_dmac_init(struct net_device *ndev)
 	int error;
 
 	/* Set CONFIG mode */
-	error = ravb_config(ndev);
+	error = ravb_set_opmode(ndev, CCC_OPC_CONFIG);
 	if (error)
 		return error;
 
@@ -682,9 +693,7 @@ static int ravb_dmac_init(struct net_device *ndev)
 		return error;
 
 	/* Setting the control will start the AVB-DMAC process. */
-	ravb_modify(ndev, CCC, CCC_OPC, CCC_OPC_OPERATION);
-
-	return 0;
+	return ravb_set_opmode(ndev, CCC_OPC_OPERATION);
 }
 
 static void ravb_get_tx_tstamp(struct net_device *ndev)
@@ -1046,7 +1055,7 @@ static int ravb_stop_dma(struct net_device *ndev)
 		return error;
 
 	/* Stop AVB-DMAC process */
-	return ravb_config(ndev);
+	return ravb_set_opmode(ndev, CCC_OPC_CONFIG);
 }
 
 /* E-MAC interrupt handler */
@@ -2560,21 +2569,25 @@ static int ravb_set_gti(struct net_device *ndev)
 	return 0;
 }
 
-static void ravb_set_config_mode(struct net_device *ndev)
+static int ravb_set_config_mode(struct net_device *ndev)
 {
 	struct ravb_private *priv = netdev_priv(ndev);
 	const struct ravb_hw_info *info = priv->info;
+	int error;
 
 	if (info->gptp) {
-		ravb_modify(ndev, CCC, CCC_OPC, CCC_OPC_CONFIG);
+		error = ravb_set_opmode(ndev, CCC_OPC_CONFIG);
+		if (error)
+			return error;
 		/* Set CSEL value */
 		ravb_modify(ndev, CCC, CCC_CSEL, CCC_CSEL_HPB);
 	} else if (info->ccc_gac) {
-		ravb_modify(ndev, CCC, CCC_OPC, CCC_OPC_CONFIG |
-			    CCC_GAC | CCC_CSEL_HPB);
+		error = ravb_set_opmode(ndev, CCC_OPC_CONFIG | CCC_GAC | CCC_CSEL_HPB);
 	} else {
-		ravb_modify(ndev, CCC, CCC_OPC, CCC_OPC_CONFIG);
+		error = ravb_set_opmode(ndev, CCC_OPC_CONFIG);
 	}
+
+	return error;
 }
 
 /* Set tx and rx clock internal delay modes */
@@ -2794,7 +2807,9 @@ static int ravb_probe(struct platform_device *pdev)
 	ndev->ethtool_ops = &ravb_ethtool_ops;
 
 	/* Set AVB config mode */
-	ravb_set_config_mode(ndev);
+	error = ravb_set_config_mode(ndev);
+	if (error)
+		goto out_disable_gptp_clk;
 
 	if (info->gptp || info->ccc_gac) {
 		/* Set GTI value */
@@ -2917,8 +2932,7 @@ static void ravb_remove(struct platform_device *pdev)
 	dma_free_coherent(ndev->dev.parent, priv->desc_bat_size, priv->desc_bat,
 			  priv->desc_bat_dma);
 
-	/* Set reset mode */
-	ravb_write(ndev, CCC_OPC_RESET, CCC);
+	ravb_set_opmode(ndev, CCC_OPC_RESET);
 
 	clk_disable_unprepare(priv->gptp_clk);
 	clk_disable_unprepare(priv->refclk);
@@ -3000,8 +3014,11 @@ static int __maybe_unused ravb_resume(struct device *dev)
 	int ret = 0;
 
 	/* If WoL is enabled set reset mode to rearm the WoL logic */
-	if (priv->wol_enabled)
-		ravb_write(ndev, CCC_OPC_RESET, CCC);
+	if (priv->wol_enabled) {
+		ret = ravb_set_opmode(ndev, CCC_OPC_RESET);
+		if (ret)
+			return ret;
+	}
 
 	/* All register have been reset to default values.
 	 * Restore all registers which where setup at probe time and
@@ -3009,7 +3026,9 @@ static int __maybe_unused ravb_resume(struct device *dev)
 	 */
 
 	/* Set AVB config mode */
-	ravb_set_config_mode(ndev);
+	ret = ravb_set_config_mode(ndev);
+	if (ret)
+		return ret;
 
 	if (info->gptp || info->ccc_gac) {
 		/* Set GTI value */