kernel: bump 4.9 to 4.9.67

Refresh patches.
Remove upstreamed patches:
- generic/190-1-5-e1000e-Fix-error-path-in-link-detection.patch
- generic/190-3-5-e1000e-Fix-return-value-test.patch
- generic/190-4-5-e1000e-Separate-signaling-for-link-check-link-up.patch
- generic/190-5-5-e1000e-Avoid-receiver-overrun-interrupt-bursts.patch
- ramips/0102-MIPS-ralink-Fix-MT7628-pinmux.patch
- ramips/0103-MIPS-ralink-Fix-typo-in-mt7628-pinmux-function
Update patches that no longer apply:
- layerscape/815-spi-support-layerscape.patch
- ramips/0099-pci-mt7620.patch

Compile-tested on ar71xx, brcm2708/bcm2708, octeon and x86/64.
Runtime-tested on ar71xx, brcm2708/bcm2708, octeon and x86/64.

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
This commit is contained in:
Stijn Tintel
2017-12-06 23:51:31 +01:00
parent 79a19e5d27
commit f997478655
24 changed files with 23 additions and 389 deletions

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@@ -1,52 +0,0 @@
From patchwork Fri Jul 21 18:36:23 2017
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Subject: [1/5] e1000e: Fix error path in link detection
From: Benjamin Poirier <bpoirier@suse.com>
X-Patchwork-Id: 9857487
Message-Id: <20170721183627.13373-1-bpoirier@suse.com>
To: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Cc: Lennart Sorensen <lsorense@csclub.uwaterloo.ca>,
intel-wired-lan@lists.osuosl.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org
Date: Fri, 21 Jul 2017 11:36:23 -0700
In case of error from e1e_rphy(), the loop will exit early and "success"
will be set to true erroneously.
Signed-off-by: Benjamin Poirier <bpoirier@suse.com>
---
drivers/net/ethernet/intel/e1000e/phy.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
--- a/drivers/net/ethernet/intel/e1000e/phy.c
+++ b/drivers/net/ethernet/intel/e1000e/phy.c
@@ -1744,6 +1744,7 @@ s32 e1000e_phy_has_link_generic(struct e
s32 ret_val = 0;
u16 i, phy_status;
+ *success = false;
for (i = 0; i < iterations; i++) {
/* Some PHYs require the MII_BMSR register to be read
* twice due to the link bit being sticky. No harm doing
@@ -1763,16 +1764,16 @@ s32 e1000e_phy_has_link_generic(struct e
ret_val = e1e_rphy(hw, MII_BMSR, &phy_status);
if (ret_val)
break;
- if (phy_status & BMSR_LSTATUS)
+ if (phy_status & BMSR_LSTATUS) {
+ *success = true;
break;
+ }
if (usec_interval >= 1000)
msleep(usec_interval / 1000);
else
udelay(usec_interval);
}
- *success = (i < iterations);
-
return ret_val;
}

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@@ -23,7 +23,7 @@ Tested-by: Aaron Brown <aaron.f.brown@intel.com>
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -5049,7 +5049,7 @@ static bool e1000e_has_link(struct e1000
@@ -5066,7 +5066,7 @@ static bool e1000e_has_link(struct e1000
/* get_link_status is set on LSC (link status) interrupt or
* Rx sequence error interrupt. get_link_status will stay
@@ -32,7 +32,7 @@ Tested-by: Aaron Brown <aaron.f.brown@intel.com>
* for copper adapters ONLY
*/
switch (hw->phy.media_type) {
@@ -5067,7 +5067,7 @@ static bool e1000e_has_link(struct e1000
@@ -5084,7 +5084,7 @@ static bool e1000e_has_link(struct e1000
break;
case e1000_media_type_internal_serdes:
ret_val = hw->mac.ops.check_for_link(hw);

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@@ -1,32 +0,0 @@
From patchwork Fri Jul 21 18:36:25 2017
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Subject: [3/5] e1000e: Fix return value test
From: Benjamin Poirier <bpoirier@suse.com>
X-Patchwork-Id: 9857495
Message-Id: <20170721183627.13373-3-bpoirier@suse.com>
To: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Cc: Lennart Sorensen <lsorense@csclub.uwaterloo.ca>,
intel-wired-lan@lists.osuosl.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org
Date: Fri, 21 Jul 2017 11:36:25 -0700
All the helpers return -E1000_ERR_PHY.
Signed-off-by: Benjamin Poirier <bpoirier@suse.com>
---
drivers/net/ethernet/intel/e1000e/netdev.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -5074,7 +5074,7 @@ static bool e1000e_has_link(struct e1000
break;
}
- if ((ret_val == E1000_ERR_PHY) && (hw->phy.type == e1000_phy_igp_3) &&
+ if ((ret_val == -E1000_ERR_PHY) && (hw->phy.type == e1000_phy_igp_3) &&
(er32(CTRL) & E1000_PHY_CTRL_GBE_DISABLE)) {
/* See e1000_kmrn_lock_loss_workaround_ich8lan() */
e_info("Gigabit has been disabled, downgrading speed\n");

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@@ -1,90 +0,0 @@
From patchwork Fri Jul 21 18:36:26 2017
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Subject: [4/5] e1000e: Separate signaling for link check/link up
From: Benjamin Poirier <bpoirier@suse.com>
X-Patchwork-Id: 9857491
Message-Id: <20170721183627.13373-4-bpoirier@suse.com>
To: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Cc: Lennart Sorensen <lsorense@csclub.uwaterloo.ca>,
intel-wired-lan@lists.osuosl.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org
Date: Fri, 21 Jul 2017 11:36:26 -0700
Lennart reported the following race condition:
\ e1000_watchdog_task
\ e1000e_has_link
\ hw->mac.ops.check_for_link() === e1000e_check_for_copper_link
/* link is up */
mac->get_link_status = false;
/* interrupt */
\ e1000_msix_other
hw->mac.get_link_status = true;
link_active = !hw->mac.get_link_status
/* link_active is false, wrongly */
This problem arises because the single flag get_link_status is used to
signal two different states: link status needs checking and link status is
down.
Avoid the problem by using the return value of .check_for_link to signal
the link status to e1000e_has_link().
Reported-by: Lennart Sorensen <lsorense@csclub.uwaterloo.ca>
Signed-off-by: Benjamin Poirier <bpoirier@suse.com>
---
drivers/net/ethernet/intel/e1000e/mac.c | 11 ++++++++---
drivers/net/ethernet/intel/e1000e/netdev.c | 2 +-
2 files changed, 9 insertions(+), 4 deletions(-)
--- a/drivers/net/ethernet/intel/e1000e/mac.c
+++ b/drivers/net/ethernet/intel/e1000e/mac.c
@@ -410,6 +410,9 @@ void e1000e_clear_hw_cntrs_base(struct e
* Checks to see of the link status of the hardware has changed. If a
* change in link status has been detected, then we read the PHY registers
* to get the current speed/duplex if link exists.
+ *
+ * Returns a negative error code (-E1000_ERR_*) or 0 (link down) or 1 (link
+ * up).
**/
s32 e1000e_check_for_copper_link(struct e1000_hw *hw)
{
@@ -423,7 +426,7 @@ s32 e1000e_check_for_copper_link(struct
* Change or Rx Sequence Error interrupt.
*/
if (!mac->get_link_status)
- return 0;
+ return 1;
/* First we want to see if the MII Status Register reports
* link. If so, then we want to get the current speed/duplex
@@ -461,10 +464,12 @@ s32 e1000e_check_for_copper_link(struct
* different link partner.
*/
ret_val = e1000e_config_fc_after_link_up(hw);
- if (ret_val)
+ if (ret_val) {
e_dbg("Error configuring flow control\n");
+ return ret_val;
+ }
- return ret_val;
+ return 1;
}
/**
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -5056,7 +5056,7 @@ static bool e1000e_has_link(struct e1000
case e1000_media_type_copper:
if (hw->mac.get_link_status) {
ret_val = hw->mac.ops.check_for_link(hw);
- link_active = !hw->mac.get_link_status;
+ link_active = ret_val > 0;
} else {
link_active = true;
}

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@@ -1,109 +0,0 @@
From patchwork Fri Jul 21 18:36:27 2017
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Subject: [5/5] e1000e: Avoid receiver overrun interrupt bursts
From: Benjamin Poirier <bpoirier@suse.com>
X-Patchwork-Id: 9857493
Message-Id: <20170721183627.13373-5-bpoirier@suse.com>
To: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Cc: Lennart Sorensen <lsorense@csclub.uwaterloo.ca>,
intel-wired-lan@lists.osuosl.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org
Date: Fri, 21 Jul 2017 11:36:27 -0700
When e1000e_poll() is not fast enough to keep up with incoming traffic, the
adapter (when operating in msix mode) raises the Other interrupt to signal
Receiver Overrun.
This is a double problem because 1) at the moment e1000_msix_other()
assumes that it is only called in case of Link Status Change and 2) if the
condition persists, the interrupt is repeatedly raised again in quick
succession.
Ideally we would configure the Other interrupt to not be raised in case of
receiver overrun but this doesn't seem possible on this adapter. Instead,
we handle the first part of the problem by reverting to the practice of
reading ICR in the other interrupt handler, like before commit 16ecba59bc33
("e1000e: Do not read ICR in Other interrupt"). Thanks to commit
0a8047ac68e5 ("e1000e: Fix msi-x interrupt automask") which cleared IAME
from CTRL_EXT, reading ICR doesn't interfere with RxQ0, TxQ0 interrupts
anymore. We handle the second part of the problem by not re-enabling the
Other interrupt right away when there is overrun. Instead, we wait until
traffic subsides, napi polling mode is exited and interrupts are
re-enabled.
Reported-by: Lennart Sorensen <lsorense@csclub.uwaterloo.ca>
Fixes: 16ecba59bc33 ("e1000e: Do not read ICR in Other interrupt")
Signed-off-by: Benjamin Poirier <bpoirier@suse.com>
---
drivers/net/ethernet/intel/e1000e/defines.h | 1 +
drivers/net/ethernet/intel/e1000e/netdev.c | 33 +++++++++++++++++++++++------
2 files changed, 27 insertions(+), 7 deletions(-)
--- a/drivers/net/ethernet/intel/e1000e/defines.h
+++ b/drivers/net/ethernet/intel/e1000e/defines.h
@@ -398,6 +398,7 @@
#define E1000_ICR_LSC 0x00000004 /* Link Status Change */
#define E1000_ICR_RXSEQ 0x00000008 /* Rx sequence error */
#define E1000_ICR_RXDMT0 0x00000010 /* Rx desc min. threshold (0) */
+#define E1000_ICR_RXO 0x00000040 /* Receiver Overrun */
#define E1000_ICR_RXT0 0x00000080 /* Rx timer intr (ring 0) */
#define E1000_ICR_ECCER 0x00400000 /* Uncorrectable ECC Error */
/* If this bit asserted, the driver should claim the interrupt */
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -1905,12 +1905,30 @@ static irqreturn_t e1000_msix_other(int
struct net_device *netdev = data;
struct e1000_adapter *adapter = netdev_priv(netdev);
struct e1000_hw *hw = &adapter->hw;
+ u32 icr;
+ bool enable = true;
- hw->mac.get_link_status = true;
+ icr = er32(ICR);
+ if (icr & E1000_ICR_RXO) {
+ ew32(ICR, E1000_ICR_RXO);
+ enable = false;
+ /* napi poll will re-enable Other, make sure it runs */
+ if (napi_schedule_prep(&adapter->napi)) {
+ adapter->total_rx_bytes = 0;
+ adapter->total_rx_packets = 0;
+ __napi_schedule(&adapter->napi);
+ }
+ }
+ if (icr & E1000_ICR_LSC) {
+ ew32(ICR, E1000_ICR_LSC);
+ hw->mac.get_link_status = true;
+ /* guard against interrupt when we're going down */
+ if (!test_bit(__E1000_DOWN, &adapter->state)) {
+ mod_timer(&adapter->watchdog_timer, jiffies + 1);
+ }
+ }
- /* guard against interrupt when we're going down */
- if (!test_bit(__E1000_DOWN, &adapter->state)) {
- mod_timer(&adapter->watchdog_timer, jiffies + 1);
+ if (enable && !test_bit(__E1000_DOWN, &adapter->state)) {
ew32(IMS, E1000_IMS_OTHER);
}
@@ -2683,7 +2701,8 @@ static int e1000e_poll(struct napi_struc
napi_complete_done(napi, work_done);
if (!test_bit(__E1000_DOWN, &adapter->state)) {
if (adapter->msix_entries)
- ew32(IMS, adapter->rx_ring->ims_val);
+ ew32(IMS, adapter->rx_ring->ims_val |
+ E1000_IMS_OTHER);
else
e1000_irq_enable(adapter);
}
@@ -4178,7 +4197,7 @@ static void e1000e_trigger_lsc(struct e1
struct e1000_hw *hw = &adapter->hw;
if (adapter->msix_entries)
- ew32(ICS, E1000_ICS_OTHER);
+ ew32(ICS, E1000_ICS_LSC | E1000_ICS_OTHER);
else
ew32(ICS, E1000_ICS_LSC);
}

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@@ -200,7 +200,7 @@ Signed-off-by: Jonas Gorski <jogo@openwrt.org>
net->ipv6.ip6_blk_hole_entry->dst.dev = dev;
net->ipv6.ip6_blk_hole_entry->rt6i_idev = in6_dev_get(dev);
#endif
@@ -3714,6 +3753,17 @@ static int __net_init ip6_route_net_init
@@ -3718,6 +3757,17 @@ static int __net_init ip6_route_net_init
net->ipv6.ip6_blk_hole_entry->dst.ops = &net->ipv6.ip6_dst_ops;
dst_init_metrics(&net->ipv6.ip6_blk_hole_entry->dst,
ip6_template_metrics, true);
@@ -218,7 +218,7 @@ Signed-off-by: Jonas Gorski <jogo@openwrt.org>
#endif
net->ipv6.sysctl.flush_delay = 0;
@@ -3732,6 +3782,8 @@ out:
@@ -3736,6 +3786,8 @@ out:
return ret;
#ifdef CONFIG_IPV6_MULTIPLE_TABLES
@@ -227,7 +227,7 @@ Signed-off-by: Jonas Gorski <jogo@openwrt.org>
out_ip6_prohibit_entry:
kfree(net->ipv6.ip6_prohibit_entry);
out_ip6_null_entry:
@@ -3749,6 +3801,7 @@ static void __net_exit ip6_route_net_exi
@@ -3753,6 +3805,7 @@ static void __net_exit ip6_route_net_exi
#ifdef CONFIG_IPV6_MULTIPLE_TABLES
kfree(net->ipv6.ip6_prohibit_entry);
kfree(net->ipv6.ip6_blk_hole_entry);
@@ -235,7 +235,7 @@ Signed-off-by: Jonas Gorski <jogo@openwrt.org>
#endif
dst_entries_destroy(&net->ipv6.ip6_dst_ops);
}
@@ -3822,6 +3875,9 @@ void __init ip6_route_init_special_entri
@@ -3826,6 +3879,9 @@ void __init ip6_route_init_special_entri
init_net.ipv6.ip6_prohibit_entry->rt6i_idev = in6_dev_get(init_net.loopback_dev);
init_net.ipv6.ip6_blk_hole_entry->dst.dev = init_net.loopback_dev;
init_net.ipv6.ip6_blk_hole_entry->rt6i_idev = in6_dev_get(init_net.loopback_dev);