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Networking fixes for 5.17-rc1, including fixes from netfilter, bpf.

Browse Source 
Current release - regressions:
 
  - fix memory leaks in the skb free deferral scheme if upper layer
    protocols are used, i.e. in-kernel TCP readers like TLS
 
 Current release - new code bugs:
 
  - nf_tables: fix NULL check typo in _clone() functions
 
  - change the default to y for Vertexcom vendor Kconfig
 
  - a couple of fixes to incorrect uses of ref tracking
 
  - two fixes for constifying netdev->dev_addr
 
 Previous releases - regressions:
 
  - bpf:
    - various verifier fixes mainly around register offset handling
      when passed to helper functions
    - fix mount source displayed for bpffs (none -> bpffs)
 
  - bonding:
    - fix extraction of ports for connection hash calculation
    - fix bond_xmit_broadcast return value when some devices are down
 
  - phy: marvell: add Marvell specific PHY loopback
 
  - sch_api: don't skip qdisc attach on ingress, prevent ref leak
 
  - htb: restore minimal packet size handling in rate control
 
  - sfp: fix high power modules without diagnostic monitoring
 
  - mscc: ocelot:
    - don't let phylink re-enable TX PAUSE on the NPI port
    - don't dereference NULL pointers with shared tc filters
 
  - smsc95xx: correct reset handling for LAN9514
 
  - cpsw: avoid alignment faults by taking NET_IP_ALIGN into account
 
  - phy: micrel: use kszphy_suspend/_resume for irq aware devices,
    avoid races with the interrupt
 
 Previous releases - always broken:
 
  - xdp: check prog type before updating BPF link
 
  - smc: resolve various races around abnormal connection termination
 
  - sit: allow encapsulated IPv6 traffic to be delivered locally
 
  - axienet: fix init/reset handling, add missing barriers,
    read the right status words, stop queues correctly
 
  - add missing dev_put() in sock_timestamping_bind_phc()
 
 Misc:
 
  - ipv4: prevent accidentally passing RTO_ONLINK to
    ip_route_output_key_hash() by sanitizing flags
 
  - ipv4: avoid quadratic behavior in netns dismantle
 
  - stmmac: dwmac-oxnas: add support for OX810SE
 
  - fsl: xgmac_mdio: add workaround for erratum A-009885
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Including fixes from netfilter, bpf.

  Quite a handful of old regression fixes but most of those are
  pre-5.16.

  Current release - regressions:

   - fix memory leaks in the skb free deferral scheme if upper layer
     protocols are used, i.e. in-kernel TCP readers like TLS

  Current release - new code bugs:

   - nf_tables: fix NULL check typo in _clone() functions

   - change the default to y for Vertexcom vendor Kconfig

   - a couple of fixes to incorrect uses of ref tracking

   - two fixes for constifying netdev->dev_addr

  Previous releases - regressions:

   - bpf:
      - various verifier fixes mainly around register offset handling
        when passed to helper functions
      - fix mount source displayed for bpffs (none -> bpffs)

   - bonding:
      - fix extraction of ports for connection hash calculation
      - fix bond_xmit_broadcast return value when some devices are down

   - phy: marvell: add Marvell specific PHY loopback

   - sch_api: don't skip qdisc attach on ingress, prevent ref leak

   - htb: restore minimal packet size handling in rate control

   - sfp: fix high power modules without diagnostic monitoring

   - mscc: ocelot:
      - don't let phylink re-enable TX PAUSE on the NPI port
      - don't dereference NULL pointers with shared tc filters

   - smsc95xx: correct reset handling for LAN9514

   - cpsw: avoid alignment faults by taking NET_IP_ALIGN into account

   - phy: micrel: use kszphy_suspend/_resume for irq aware devices,
     avoid races with the interrupt

  Previous releases - always broken:

   - xdp: check prog type before updating BPF link

   - smc: resolve various races around abnormal connection termination

   - sit: allow encapsulated IPv6 traffic to be delivered locally

   - axienet: fix init/reset handling, add missing barriers, read the
     right status words, stop queues correctly

   - add missing dev_put() in sock_timestamping_bind_phc()

  Misc:

   - ipv4: prevent accidentally passing RTO_ONLINK to
     ip_route_output_key_hash() by sanitizing flags

   - ipv4: avoid quadratic behavior in netns dismantle

   - stmmac: dwmac-oxnas: add support for OX810SE

   - fsl: xgmac_mdio: add workaround for erratum A-009885"

* tag 'net-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (92 commits)
  ipv4: add net_hash_mix() dispersion to fib_info_laddrhash keys
  ipv4: avoid quadratic behavior in netns dismantle
  net/fsl: xgmac_mdio: Fix incorrect iounmap when removing module
  powerpc/fsl/dts: Enable WA for erratum A-009885 on fman3l MDIO buses
  dt-bindings: net: Document fsl,erratum-a009885
  net/fsl: xgmac_mdio: Add workaround for erratum A-009885
  net: mscc: ocelot: fix using match before it is set
  net: phy: micrel: use kszphy_suspend()/kszphy_resume for irq aware devices
  net: cpsw: avoid alignment faults by taking NET_IP_ALIGN into account
  nfc: llcp: fix NULL error pointer dereference on sendmsg() after failed bind()
  net: axienet: increase default TX ring size to 128
  net: axienet: fix for TX busy handling
  net: axienet: fix number of TX ring slots for available check
  net: axienet: Fix TX ring slot available check
  net: axienet: limit minimum TX ring size
  net: axienet: add missing memory barriers
  net: axienet: reset core on initialization prior to MDIO access
  net: axienet: Wait for PhyRstCmplt after core reset
  net: axienet: increase reset timeout
  bpf, selftests: Add ringbuf memory type confusion test
  ...
This commit is contained in:
Linus Torvalds 2022-01-20 10:57:05 +02:00
commit fa2e1ba3e9
91 changed files with 1049 additions and 422 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
Documentation/devicetree/bindings/net/fsl-fman.txt
View File

@ -410,6 +410,15 @@ PROPERTIES
The settings and programming routines for internal/external
MDIO are different. Must be included for internal MDIO.
- fsl,erratum-a009885
Usage: optional
Value type: <boolean>
Definition: Indicates the presence of the A009885
erratum describing that the contents of MDIO_DATA may
become corrupt unless it is read within 16 MDC cycles
of MDIO_CFG[BSY] being cleared, when performing an
MDIO read operation.
- fsl,erratum-a011043
Usage: optional
Value type: <boolean>

3
Documentation/devicetree/bindings/net/oxnas-dwmac.txt
View File

@ -9,6 +9,9 @@ Required properties on all platforms:
- compatible: For the OX820 SoC, it should be :
- "oxsemi,ox820-dwmac" to select glue
- "snps,dwmac-3.512" to select IP version.
For the OX810SE SoC, it should be :
- "oxsemi,ox810se-dwmac" to select glue
- "snps,dwmac-3.512" to select IP version.
- clocks: Should contain phandles to the following clocks
- clock-names: Should contain the following:

2
arch/powerpc/boot/dts/fsl/qoriq-fman3l-0.dtsi
View File

@ -79,6 +79,7 @@ fman0: fman@400000 {
#size-cells = <0>;
compatible = "fsl,fman-memac-mdio", "fsl,fman-xmdio";
reg = <0xfc000 0x1000>;
fsl,erratum-a009885;
};
xmdio0: mdio@fd000 {
@ -86,6 +87,7 @@ fman0: fman@400000 {
#size-cells = <0>;
compatible = "fsl,fman-memac-mdio", "fsl,fman-xmdio";
reg = <0xfd000 0x1000>;
fsl,erratum-a009885;
};
};

4
drivers/atm/iphase.c
View File

@ -178,7 +178,6 @@ static void ia_hack_tcq(IADEV *dev) {
static u16 get_desc (IADEV *dev, struct ia_vcc *iavcc) {
u_short desc_num, i;
struct sk_buff *skb;
struct ia_vcc *iavcc_r = NULL;
unsigned long delta;
static unsigned long timer = 0;
@ -202,8 +201,7 @@ static u16 get_desc (IADEV *dev, struct ia_vcc *iavcc) {
else
dev->ffL.tcq_rd -= 2;
*(u_short *)(dev->seg_ram + dev->ffL.tcq_rd) = i+1;
if (!(skb = dev->desc_tbl[i].txskb) ||
!(iavcc_r = dev->desc_tbl[i].iavcc))
if (!dev->desc_tbl[i].txskb || !(iavcc_r = dev->desc_tbl[i].iavcc))
printk("Fatal err, desc table vcc or skb is NULL\n");
else
iavcc_r->vc_desc_cnt--;

36
drivers/net/bonding/bond_main.c
View File

@ -3874,8 +3874,8 @@ u32 bond_xmit_hash(struct bonding *bond, struct sk_buff *skb)
skb->l4_hash)
return skb->hash;
return __bond_xmit_hash(bond, skb, skb->head, skb->protocol,
skb->mac_header, skb->network_header,
return __bond_xmit_hash(bond, skb, skb->data, skb->protocol,
skb_mac_offset(skb), skb_network_offset(skb),
skb_headlen(skb));
}
@ -4884,25 +4884,39 @@ static netdev_tx_t bond_xmit_broadcast(struct sk_buff *skb,
struct bonding *bond = netdev_priv(bond_dev);
struct slave *slave = NULL;
struct list_head *iter;
bool xmit_suc = false;
bool skb_used = false;
bond_for_each_slave_rcu(bond, slave, iter) {
if (bond_is_last_slave(bond, slave))
break;
if (bond_slave_is_up(slave) && slave->link == BOND_LINK_UP) {
struct sk_buff *skb2 = skb_clone(skb, GFP_ATOMIC);
struct sk_buff *skb2;
if (!(bond_slave_is_up(slave) && slave->link == BOND_LINK_UP))
continue;
if (bond_is_last_slave(bond, slave)) {
skb2 = skb;
skb_used = true;
} else {
skb2 = skb_clone(skb, GFP_ATOMIC);
if (!skb2) {
net_err_ratelimited("%s: Error: %s: skb_clone() failed\n",
bond_dev->name, __func__);
continue;
}
bond_dev_queue_xmit(bond, skb2, slave->dev);
}
}
if (slave && bond_slave_is_up(slave) && slave->link == BOND_LINK_UP)
return bond_dev_queue_xmit(bond, skb, slave->dev);
return bond_tx_drop(bond_dev, skb);
if (bond_dev_queue_xmit(bond, skb2, slave->dev) == NETDEV_TX_OK)
xmit_suc = true;
}
if (!skb_used)
dev_kfree_skb_any(skb);
if (xmit_suc)
return NETDEV_TX_OK;
atomic_long_inc(&bond_dev->tx_dropped);
return NET_XMIT_DROP;
}
/*------------------------- Device initialization ---------------------------*/

31
drivers/net/ethernet/allwinner/sun4i-emac.c
View File

@ -106,9 +106,9 @@ static void emac_update_speed(struct net_device *dev)
/* set EMAC SPEED, depend on PHY */
reg_val = readl(db->membase + EMAC_MAC_SUPP_REG);
reg_val &= ~(0x1 << 8);
reg_val &= ~EMAC_MAC_SUPP_100M;
if (db->speed == SPEED_100)
reg_val |= 1 << 8;
reg_val |= EMAC_MAC_SUPP_100M;
writel(reg_val, db->membase + EMAC_MAC_SUPP_REG);
}
@ -264,7 +264,7 @@ static void emac_dma_done_callback(void *arg)
/* re enable interrupt */
reg_val = readl(db->membase + EMAC_INT_CTL_REG);
reg_val |= (0x01 << 8);
reg_val |= EMAC_INT_CTL_RX_EN;
writel(reg_val, db->membase + EMAC_INT_CTL_REG);
db->emacrx_completed_flag = 1;
@ -429,7 +429,7 @@ static unsigned int emac_powerup(struct net_device *ndev)
/* initial EMAC */
/* flush RX FIFO */
reg_val = readl(db->membase + EMAC_RX_CTL_REG);
reg_val |= 0x8;
reg_val |= EMAC_RX_CTL_FLUSH_FIFO;
writel(reg_val, db->membase + EMAC_RX_CTL_REG);
udelay(1);
@ -441,8 +441,8 @@ static unsigned int emac_powerup(struct net_device *ndev)
/* set MII clock */
reg_val = readl(db->membase + EMAC_MAC_MCFG_REG);
reg_val &= (~(0xf << 2));
reg_val |= (0xD << 2);
reg_val &= ~EMAC_MAC_MCFG_MII_CLKD_MASK;
reg_val |= EMAC_MAC_MCFG_MII_CLKD_72;
writel(reg_val, db->membase + EMAC_MAC_MCFG_REG);
/* clear RX counter */
@ -506,7 +506,7 @@ static void emac_init_device(struct net_device *dev)
/* enable RX/TX0/RX Hlevel interrup */
reg_val = readl(db->membase + EMAC_INT_CTL_REG);
reg_val |= (0xf << 0) | (0x01 << 8);
reg_val |= (EMAC_INT_CTL_TX_EN | EMAC_INT_CTL_TX_ABRT_EN | EMAC_INT_CTL_RX_EN);
writel(reg_val, db->membase + EMAC_INT_CTL_REG);
spin_unlock_irqrestore(&db->lock, flags);
@ -637,7 +637,9 @@ static void emac_rx(struct net_device *dev)
if (!rxcount) {
db->emacrx_completed_flag = 1;
reg_val = readl(db->membase + EMAC_INT_CTL_REG);
reg_val |= (0xf << 0) | (0x01 << 8);
reg_val |= (EMAC_INT_CTL_TX_EN |
EMAC_INT_CTL_TX_ABRT_EN |
EMAC_INT_CTL_RX_EN);
writel(reg_val, db->membase + EMAC_INT_CTL_REG);
/* had one stuck? */
@ -669,7 +671,9 @@ static void emac_rx(struct net_device *dev)
writel(reg_val | EMAC_CTL_RX_EN,
db->membase + EMAC_CTL_REG);
reg_val = readl(db->membase + EMAC_INT_CTL_REG);
reg_val |= (0xf << 0) | (0x01 << 8);
reg_val |= (EMAC_INT_CTL_TX_EN |
EMAC_INT_CTL_TX_ABRT_EN |
EMAC_INT_CTL_RX_EN);
writel(reg_val, db->membase + EMAC_INT_CTL_REG);
db->emacrx_completed_flag = 1;
@ -783,20 +787,20 @@ static irqreturn_t emac_interrupt(int irq, void *dev_id)
}
/* Transmit Interrupt check */
if (int_status & (0x01 | 0x02))
if (int_status & EMAC_INT_STA_TX_COMPLETE)
emac_tx_done(dev, db, int_status);
if (int_status & (0x04 | 0x08))
if (int_status & EMAC_INT_STA_TX_ABRT)
netdev_info(dev, " ab : %x\n", int_status);
/* Re-enable interrupt mask */
if (db->emacrx_completed_flag == 1) {
reg_val = readl(db->membase + EMAC_INT_CTL_REG);
reg_val |= (0xf << 0) | (0x01 << 8);
reg_val |= (EMAC_INT_CTL_TX_EN | EMAC_INT_CTL_TX_ABRT_EN | EMAC_INT_CTL_RX_EN);
writel(reg_val, db->membase + EMAC_INT_CTL_REG);
} else {
reg_val = readl(db->membase + EMAC_INT_CTL_REG);
reg_val |= (0xf << 0);
reg_val |= (EMAC_INT_CTL_TX_EN | EMAC_INT_CTL_TX_ABRT_EN);
writel(reg_val, db->membase + EMAC_INT_CTL_REG);
}
@ -1068,6 +1072,7 @@ out_clk_disable_unprepare:
clk_disable_unprepare(db->clk);
out_dispose_mapping:
irq_dispose_mapping(ndev->irq);
dma_release_channel(db->rx_chan);
out_iounmap:
iounmap(db->membase);
out:

18
drivers/net/ethernet/allwinner/sun4i-emac.h
View File

@ -38,6 +38,7 @@
#define EMAC_RX_CTL_REG (0x3c)
#define EMAC_RX_CTL_AUTO_DRQ_EN (1 << 1)
#define EMAC_RX_CTL_DMA_EN (1 << 2)
#define EMAC_RX_CTL_FLUSH_FIFO (1 << 3)
#define EMAC_RX_CTL_PASS_ALL_EN (1 << 4)
#define EMAC_RX_CTL_PASS_CTL_EN (1 << 5)
#define EMAC_RX_CTL_PASS_CRC_ERR_EN (1 << 6)
@ -61,7 +62,21 @@
#define EMAC_RX_IO_DATA_STATUS_OK (1 << 7)
#define EMAC_RX_FBC_REG (0x50)
#define EMAC_INT_CTL_REG (0x54)
#define EMAC_INT_CTL_RX_EN (1 << 8)
#define EMAC_INT_CTL_TX0_EN (1)
#define EMAC_INT_CTL_TX1_EN (1 << 1)
#define EMAC_INT_CTL_TX_EN (EMAC_INT_CTL_TX0_EN | EMAC_INT_CTL_TX1_EN)
#define EMAC_INT_CTL_TX0_ABRT_EN (0x1 << 2)
#define EMAC_INT_CTL_TX1_ABRT_EN (0x1 << 3)
#define EMAC_INT_CTL_TX_ABRT_EN (EMAC_INT_CTL_TX0_ABRT_EN | EMAC_INT_CTL_TX1_ABRT_EN)
#define EMAC_INT_STA_REG (0x58)
#define EMAC_INT_STA_TX0_COMPLETE (0x1)
#define EMAC_INT_STA_TX1_COMPLETE (0x1 << 1)
#define EMAC_INT_STA_TX_COMPLETE (EMAC_INT_STA_TX0_COMPLETE | EMAC_INT_STA_TX1_COMPLETE)
#define EMAC_INT_STA_TX0_ABRT (0x1 << 2)
#define EMAC_INT_STA_TX1_ABRT (0x1 << 3)
#define EMAC_INT_STA_TX_ABRT (EMAC_INT_STA_TX0_ABRT | EMAC_INT_STA_TX1_ABRT)
#define EMAC_INT_STA_RX_COMPLETE (0x1 << 8)
#define EMAC_MAC_CTL0_REG (0x5c)
#define EMAC_MAC_CTL0_RX_FLOW_CTL_EN (1 << 2)
#define EMAC_MAC_CTL0_TX_FLOW_CTL_EN (1 << 3)
@ -87,8 +102,11 @@
#define EMAC_MAC_CLRT_RM (0x0f)
#define EMAC_MAC_MAXF_REG (0x70)
#define EMAC_MAC_SUPP_REG (0x74)
#define EMAC_MAC_SUPP_100M (0x1 << 8)
#define EMAC_MAC_TEST_REG (0x78)
#define EMAC_MAC_MCFG_REG (0x7c)
#define EMAC_MAC_MCFG_MII_CLKD_MASK (0xff << 2)
#define EMAC_MAC_MCFG_MII_CLKD_72 (0x0d << 2)
#define EMAC_MAC_A0_REG (0x98)
#define EMAC_MAC_A1_REG (0x9c)
#define EMAC_MAC_A2_REG (0xa0)

5
drivers/net/ethernet/apple/bmac.c
View File

@ -1237,6 +1237,7 @@ static int bmac_probe(struct macio_dev *mdev, const struct of_device_id *match)
struct bmac_data *bp;
const unsigned char *prop_addr;
unsigned char addr[6];
u8 macaddr[6];
struct net_device *dev;
int is_bmac_plus = ((int)match->data) != 0;
@ -1284,7 +1285,9 @@ static int bmac_probe(struct macio_dev *mdev, const struct of_device_id *match)
rev = addr[0] == 0 && addr[1] == 0xA0;
for (j = 0; j < 6; ++j)
dev->dev_addr[j] = rev ? bitrev8(addr[j]): addr[j];
macaddr[j] = rev ? bitrev8(addr[j]): addr[j];
eth_hw_addr_set(dev, macaddr);
/* Enable chip without interrupts for now */
bmac_enable_and_reset_chip(dev);

16
drivers/net/ethernet/apple/mace.c
View File

@ -90,7 +90,7 @@ static void mace_set_timeout(struct net_device *dev);
static void mace_tx_timeout(struct timer_list *t);
static inline void dbdma_reset(volatile struct dbdma_regs __iomem *dma);
static inline void mace_clean_rings(struct mace_data *mp);
static void __mace_set_address(struct net_device *dev, void *addr);
static void __mace_set_address(struct net_device *dev, const void *addr);
/*
* If we can't get a skbuff when we need it, we use this area for DMA.
@ -112,6 +112,7 @@ static int mace_probe(struct macio_dev *mdev, const struct of_device_id *match)
struct net_device *dev;
struct mace_data *mp;
const unsigned char *addr;
u8 macaddr[ETH_ALEN];
int j, rev, rc = -EBUSY;
if (macio_resource_count(mdev) != 3 || macio_irq_count(mdev) != 3) {
@ -167,8 +168,9 @@ static int mace_probe(struct macio_dev *mdev, const struct of_device_id *match)
rev = addr[0] == 0 && addr[1] == 0xA0;
for (j = 0; j < 6; ++j) {
dev->dev_addr[j] = rev ? bitrev8(addr[j]): addr[j];
macaddr[j] = rev ? bitrev8(addr[j]): addr[j];
}
eth_hw_addr_set(dev, macaddr);
mp->chipid = (in_8(&mp->mace->chipid_hi) << 8) |
in_8(&mp->mace->chipid_lo);
@ -369,11 +371,12 @@ static void mace_reset(struct net_device *dev)
out_8(&mb->plscc, PORTSEL_GPSI + ENPLSIO);
}
static void __mace_set_address(struct net_device *dev, void *addr)
static void __mace_set_address(struct net_device *dev, const void *addr)
{
struct mace_data *mp = netdev_priv(dev);
volatile struct mace __iomem *mb = mp->mace;
unsigned char *p = addr;
const unsigned char *p = addr;
u8 macaddr[ETH_ALEN];
int i;
/* load up the hardware address */
@ -385,7 +388,10 @@ static void __mace_set_address(struct net_device *dev, void *addr)
;
}
for (i = 0; i < 6; ++i)
out_8(&mb->padr, dev->dev_addr[i] = p[i]);
out_8(&mb->padr, macaddr[i] = p[i]);
eth_hw_addr_set(dev, macaddr);
if (mp->chipid != BROKEN_ADDRCHG_REV)
out_8(&mb->iac, 0);
}

6
drivers/net/ethernet/broadcom/genet/bcmgenet.c
View File

@ -4020,10 +4020,12 @@ static int bcmgenet_probe(struct platform_device *pdev)
/* Request the WOL interrupt and advertise suspend if available */
priv->wol_irq_disabled = true;
err = devm_request_irq(&pdev->dev, priv->wol_irq, bcmgenet_wol_isr, 0,
dev->name, priv);
if (priv->wol_irq > 0) {
err = devm_request_irq(&pdev->dev, priv->wol_irq,
bcmgenet_wol_isr, 0, dev->name, priv);
if (!err)
device_set_wakeup_capable(&pdev->dev, 1);
}
/* Set the needed headroom to account for any possible
* features enabling/disabling at runtime

3
drivers/net/ethernet/chelsio/libcxgb/libcxgb_cm.c
View File

@ -32,6 +32,7 @@
#include <linux/tcp.h>
#include <linux/ipv6.h>
#include <net/inet_ecn.h>
#include <net/route.h>
#include <net/ip6_route.h>
@ -99,7 +100,7 @@ cxgb_find_route(struct cxgb4_lld_info *lldi,
rt = ip_route_output_ports(&init_net, &fl4, NULL, peer_ip, local_ip,
peer_port, local_port, IPPROTO_TCP,
tos, 0);
tos & ~INET_ECN_MASK, 0);
if (IS_ERR(rt))
return NULL;
n = dst_neigh_lookup(&rt->dst, &peer_ip);

28
drivers/net/ethernet/freescale/xgmac_mdio.c
View File

@ -51,6 +51,7 @@ struct tgec_mdio_controller {
struct mdio_fsl_priv {
struct tgec_mdio_controller __iomem *mdio_base;
bool is_little_endian;
bool has_a009885;
bool has_a011043;
};
@ -186,10 +187,10 @@ static int xgmac_mdio_read(struct mii_bus *bus, int phy_id, int regnum)
{
struct mdio_fsl_priv *priv = (struct mdio_fsl_priv *)bus->priv;
struct tgec_mdio_controller __iomem *regs = priv->mdio_base;
unsigned long flags;
uint16_t dev_addr;
uint32_t mdio_stat;
uint32_t mdio_ctl;
uint16_t value;
int ret;
bool endian = priv->is_little_endian;
@ -221,12 +222,18 @@ static int xgmac_mdio_read(struct mii_bus *bus, int phy_id, int regnum)
return ret;
}
if (priv->has_a009885)
/* Once the operation completes, i.e. MDIO_STAT_BSY clears, we
* must read back the data register within 16 MDC cycles.
*/
local_irq_save(flags);
/* Initiate the read */
xgmac_write32(mdio_ctl | MDIO_CTL_READ, &regs->mdio_ctl, endian);
ret = xgmac_wait_until_done(&bus->dev, regs, endian);
if (ret)
return ret;
goto irq_restore;
/* Return all Fs if nothing was there */
if ((xgmac_read32(&regs->mdio_stat, endian) & MDIO_STAT_RD_ER) &&
@ -234,13 +241,17 @@ static int xgmac_mdio_read(struct mii_bus *bus, int phy_id, int regnum)
dev_dbg(&bus->dev,
"Error while reading PHY%d reg at %d.%hhu\n",
phy_id, dev_addr, regnum);
return 0xffff;
ret = 0xffff;
} else {
ret = xgmac_read32(&regs->mdio_data, endian) & 0xffff;
dev_dbg(&bus->dev, "read %04x\n", ret);
}
value = xgmac_read32(&regs->mdio_data, endian) & 0xffff;
dev_dbg(&bus->dev, "read %04x\n", value);
irq_restore:
if (priv->has_a009885)
local_irq_restore(flags);
return value;
return ret;
}
static int xgmac_mdio_probe(struct platform_device *pdev)
@ -287,6 +298,8 @@ static int xgmac_mdio_probe(struct platform_device *pdev)
priv->is_little_endian = device_property_read_bool(&pdev->dev,
"little-endian");
priv->has_a009885 = device_property_read_bool(&pdev->dev,
"fsl,erratum-a009885");
priv->has_a011043 = device_property_read_bool(&pdev->dev,
"fsl,erratum-a011043");
@ -318,9 +331,10 @@ err_ioremap:
static int xgmac_mdio_remove(struct platform_device *pdev)
{
struct mii_bus *bus = platform_get_drvdata(pdev);
struct mdio_fsl_priv *priv = bus->priv;
mdiobus_unregister(bus);
iounmap(bus->priv);
iounmap(priv->mdio_base);
mdiobus_free(bus);
return 0;

3
drivers/net/ethernet/i825xx/sni_82596.c
View File

@ -117,9 +117,10 @@ static int sni_82596_probe(struct platform_device *dev)
netdevice->dev_addr[5] = readb(eth_addr + 0x06);
iounmap(eth_addr);
if (!netdevice->irq) {
if (netdevice->irq < 0) {
printk(KERN_ERR "%s: IRQ not found for i82596 at 0x%lx\n",
__FILE__, netdevice->base_addr);
retval = netdevice->irq;
goto probe_failed;
}

1
drivers/net/ethernet/marvell/prestera/prestera.h
View File

@ -283,7 +283,6 @@ struct prestera_router {
struct list_head rif_entry_list;
struct notifier_block inetaddr_nb;
struct notifier_block inetaddr_valid_nb;
bool aborted;
};
struct prestera_rxtx_params {

4
drivers/net/ethernet/marvell/prestera/prestera_hw.c
View File

@ -1831,8 +1831,8 @@ static int prestera_iface_to_msg(struct prestera_iface *iface,
int prestera_hw_rif_create(struct prestera_switch *sw,
struct prestera_iface *iif, u8 *mac, u16 *rif_id)
{
struct prestera_msg_rif_req req;
struct prestera_msg_rif_resp resp;
struct prestera_msg_rif_req req;
int err;
memcpy(req.mac, mac, ETH_ALEN);
@ -1868,9 +1868,9 @@ int prestera_hw_rif_delete(struct prestera_switch *sw, u16 rif_id,
int prestera_hw_vr_create(struct prestera_switch *sw, u16 *vr_id)
{
int err;
struct prestera_msg_vr_resp resp;
struct prestera_msg_vr_req req;
int err;
err = prestera_cmd_ret(sw, PRESTERA_CMD_TYPE_ROUTER_VR_CREATE,
&req.cmd, sizeof(req), &resp.ret, sizeof(resp));

1
drivers/net/ethernet/marvell/prestera/prestera_main.c
View File

@ -982,6 +982,7 @@ static void prestera_switch_fini(struct prestera_switch *sw)
prestera_event_handlers_unregister(sw);
prestera_rxtx_switch_fini(sw);
prestera_switchdev_fini(sw);
prestera_router_fini(sw);
prestera_netdev_event_handler_unregister(sw);
prestera_hw_switch_fini(sw);
}

24
drivers/net/ethernet/marvell/prestera/prestera_router.c
View File

@ -25,10 +25,10 @@ static int __prestera_inetaddr_port_event(struct net_device *port_dev,
struct netlink_ext_ack *extack)
{
struct prestera_port *port = netdev_priv(port_dev);
int err;
struct prestera_rif_entry *re;
struct prestera_rif_entry_key re_key = {};
struct prestera_rif_entry *re;
u32 kern_tb_id;
int err;
err = prestera_is_valid_mac_addr(port, port_dev->dev_addr);
if (err) {
@ -45,21 +45,21 @@ static int __prestera_inetaddr_port_event(struct net_device *port_dev,
switch (event) {
case NETDEV_UP:
if (re) {
NL_SET_ERR_MSG_MOD(extack, "rif_entry already exist");
NL_SET_ERR_MSG_MOD(extack, "RIF already exist");
return -EEXIST;
}
re = prestera_rif_entry_create(port->sw, &re_key,
prestera_fix_tb_id(kern_tb_id),
port_dev->dev_addr);
if (!re) {
NL_SET_ERR_MSG_MOD(extack, "Can't create rif_entry");
NL_SET_ERR_MSG_MOD(extack, "Can't create RIF");
return -EINVAL;
}
dev_hold(port_dev);
break;
case NETDEV_DOWN:
if (!re) {
NL_SET_ERR_MSG_MOD(extack, "rif_entry not exist");
NL_SET_ERR_MSG_MOD(extack, "Can't find RIF");
return -EEXIST;
}
prestera_rif_entry_destroy(port->sw, re);
@ -75,11 +75,11 @@ static int __prestera_inetaddr_event(struct prestera_switch *sw,
unsigned long event,
struct netlink_ext_ack *extack)
{
if (prestera_netdev_check(dev) && !netif_is_bridge_port(dev) &&
!netif_is_lag_port(dev) && !netif_is_ovs_port(dev))
return __prestera_inetaddr_port_event(dev, event, extack);
if (!prestera_netdev_check(dev) || netif_is_bridge_port(dev) ||
netif_is_lag_port(dev) || netif_is_ovs_port(dev))
return 0;
return __prestera_inetaddr_port_event(dev, event, extack);
}
static int __prestera_inetaddr_cb(struct notifier_block *nb,
@ -126,6 +126,8 @@ static int __prestera_inetaddr_valid_cb(struct notifier_block *nb,
goto out;
if (ipv4_is_multicast(ivi->ivi_addr)) {
NL_SET_ERR_MSG_MOD(ivi->extack,
"Multicast addr on RIF is not supported");
err = -EINVAL;
goto out;
}
@ -166,7 +168,7 @@ int prestera_router_init(struct prestera_switch *sw)
err_register_inetaddr_notifier:
unregister_inetaddr_validator_notifier(&router->inetaddr_valid_nb);
err_register_inetaddr_validator_notifier:
/* prestera_router_hw_fini */
prestera_router_hw_fini(sw);
err_router_lib_init:
kfree(sw->router);
return err;
@ -176,7 +178,7 @@ void prestera_router_fini(struct prestera_switch *sw)
{
unregister_inetaddr_notifier(&sw->router->inetaddr_nb);
unregister_inetaddr_validator_notifier(&sw->router->inetaddr_valid_nb);
/* router_hw_fini */
prestera_router_hw_fini(sw);
kfree(sw->router);
sw->router = NULL;
}

36
drivers/net/ethernet/marvell/prestera/prestera_router_hw.c
View File

@ -29,6 +29,12 @@ int prestera_router_hw_init(struct prestera_switch *sw)
return 0;
}
void prestera_router_hw_fini(struct prestera_switch *sw)
{
WARN_ON(!list_empty(&sw->router->vr_list));
WARN_ON(!list_empty(&sw->router->rif_entry_list));
}
static struct prestera_vr *__prestera_vr_find(struct prestera_switch *sw,
u32 tb_id)
{
@ -47,13 +53,8 @@ static struct prestera_vr *__prestera_vr_create(struct prestera_switch *sw,
struct netlink_ext_ack *extack)
{
struct prestera_vr *vr;
u16 hw_vr_id;
int err;
err = prestera_hw_vr_create(sw, &hw_vr_id);
if (err)
return ERR_PTR(-ENOMEM);
vr = kzalloc(sizeof(*vr), GFP_KERNEL);
if (!vr) {
err = -ENOMEM;
@ -61,23 +62,26 @@ static struct prestera_vr *__prestera_vr_create(struct prestera_switch *sw,
}
vr->tb_id = tb_id;
vr->hw_vr_id = hw_vr_id;
err = prestera_hw_vr_create(sw, &vr->hw_vr_id);
if (err)
goto err_hw_create;
list_add(&vr->router_node, &sw->router->vr_list);
return vr;
err_alloc_vr:
prestera_hw_vr_delete(sw, hw_vr_id);
err_hw_create:
kfree(vr);
err_alloc_vr:
return ERR_PTR(err);
}
static void __prestera_vr_destroy(struct prestera_switch *sw,
struct prestera_vr *vr)
{
prestera_hw_vr_delete(sw, vr->hw_vr_id);
list_del(&vr->router_node);
prestera_hw_vr_delete(sw, vr->hw_vr_id);
kfree(vr);
}
@ -87,17 +91,22 @@ static struct prestera_vr *prestera_vr_get(struct prestera_switch *sw, u32 tb_id
struct prestera_vr *vr;
vr = __prestera_vr_find(sw, tb_id);
if (!vr)
if (vr) {
refcount_inc(&vr->refcount);
} else {
vr = __prestera_vr_create(sw, tb_id, extack);
if (IS_ERR(vr))
return ERR_CAST(vr);
refcount_set(&vr->refcount, 1);
}
return vr;
}
static void prestera_vr_put(struct prestera_switch *sw, struct prestera_vr *vr)
{
if (!vr->ref_cnt)
if (refcount_dec_and_test(&vr->refcount))
__prestera_vr_destroy(sw, vr);
}
@ -120,7 +129,7 @@ __prestera_rif_entry_key_copy(const struct prestera_rif_entry_key *in,
out->iface.vlan_id = in->iface.vlan_id;
break;
default:
pr_err("Unsupported iface type");
WARN(1, "Unsupported iface type");
return -EINVAL;
}
@ -158,7 +167,6 @@ void prestera_rif_entry_destroy(struct prestera_switch *sw,
iface.vr_id = e->vr->hw_vr_id;
prestera_hw_rif_delete(sw, e->hw_id, &iface);
e->vr->ref_cnt--;
prestera_vr_put(sw, e->vr);
kfree(e);
}
@ -183,7 +191,6 @@ prestera_rif_entry_create(struct prestera_switch *sw,
if (IS_ERR(e->vr))
goto err_vr_get;
e->vr->ref_cnt++;
memcpy(&e->addr, addr, sizeof(e->addr));
/* HW */
@ -198,7 +205,6 @@ prestera_rif_entry_create(struct prestera_switch *sw,
return e;
err_hw_create:
e->vr->ref_cnt--;
prestera_vr_put(sw, e->vr);
err_vr_get:
err_key_copy:

3
drivers/net/ethernet/marvell/prestera/prestera_router_hw.h
View File

@ -6,7 +6,7 @@
struct prestera_vr {
struct list_head router_node;
unsigned int ref_cnt;
refcount_t refcount;
u32 tb_id; /* key (kernel fib table id) */
u16 hw_vr_id; /* virtual router ID */
u8 __pad[2];
@ -32,5 +32,6 @@ prestera_rif_entry_create(struct prestera_switch *sw,
struct prestera_rif_entry_key *k,
u32 tb_id, const unsigned char *addr);
int prestera_router_hw_init(struct prestera_switch *sw);
void prestera_router_hw_fini(struct prestera_switch *sw);
#endif /* _PRESTERA_ROUTER_HW_H_ */

2
drivers/net/ethernet/mediatek/mtk_eth_soc.c
View File

@ -267,7 +267,7 @@ static void mtk_mac_config(struct phylink_config *config, unsigned int mode,
phylink_config);
struct mtk_eth *eth = mac->hw;
u32 mcr_cur, mcr_new, sid, i;
int val, ge_mode, err;
int val, ge_mode, err = 0;
/* MT76x8 has no hardware settings between for the MAC */
if (!MTK_HAS_CAPS(eth->soc->caps, MTK_SOC_MT7628) &&

5
drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun.c
View File

@ -1,6 +1,7 @@
/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
/* Copyright (c) 2018 Mellanox Technologies. */
#include <net/inet_ecn.h>
#include <net/vxlan.h>
#include <net/gre.h>
#include <net/geneve.h>
@ -235,7 +236,7 @@ int mlx5e_tc_tun_create_header_ipv4(struct mlx5e_priv *priv,
int err;
/* add the IP fields */
attr.fl.fl4.flowi4_tos = tun_key->tos;
attr.fl.fl4.flowi4_tos = tun_key->tos & ~INET_ECN_MASK;
attr.fl.fl4.daddr = tun_key->u.ipv4.dst;
attr.fl.fl4.saddr = tun_key->u.ipv4.src;
attr.ttl = tun_key->ttl;
@ -350,7 +351,7 @@ int mlx5e_tc_tun_update_header_ipv4(struct mlx5e_priv *priv,
int err;
/* add the IP fields */
attr.fl.fl4.flowi4_tos = tun_key->tos;
attr.fl.fl4.flowi4_tos = tun_key->tos & ~INET_ECN_MASK;
attr.fl.fl4.daddr = tun_key->u.ipv4.dst;
attr.fl.fl4.saddr = tun_key->u.ipv4.src;
attr.ttl = tun_key->ttl;

5
drivers/net/ethernet/mscc/ocelot.c
View File

@ -771,7 +771,10 @@ void ocelot_phylink_mac_link_up(struct ocelot *ocelot, int port,
ocelot_write_rix(ocelot, 0, ANA_POL_FLOWC, port);
ocelot_fields_write(ocelot, port, SYS_PAUSE_CFG_PAUSE_ENA, tx_pause);
/* Don't attempt to send PAUSE frames on the NPI port, it's broken */
if (port != ocelot->npi)
ocelot_fields_write(ocelot, port, SYS_PAUSE_CFG_PAUSE_ENA,
tx_pause);
/* Undo the effects of ocelot_phylink_mac_link_down:
* enable MAC module

44
drivers/net/ethernet/mscc/ocelot_flower.c
View File

@ -559,13 +559,6 @@ ocelot_flower_parse_key(struct ocelot *ocelot, int port, bool ingress,
return -EOPNOTSUPP;
}
if (filter->block_id == VCAP_IS1 &&
!is_zero_ether_addr(match.mask->dst)) {
NL_SET_ERR_MSG_MOD(extack,
"Key type S1_NORMAL cannot match on destination MAC");
return -EOPNOTSUPP;
}
/* The hw support mac matches only for MAC_ETYPE key,
* therefore if other matches(port, tcp flags, etc) are added
* then just bail out
@ -580,6 +573,14 @@ ocelot_flower_parse_key(struct ocelot *ocelot, int port, bool ingress,
return -EOPNOTSUPP;
flow_rule_match_eth_addrs(rule, &match);
if (filter->block_id == VCAP_IS1 &&
!is_zero_ether_addr(match.mask->dst)) {
NL_SET_ERR_MSG_MOD(extack,
"Key type S1_NORMAL cannot match on destination MAC");
return -EOPNOTSUPP;
}
filter->key_type = OCELOT_VCAP_KEY_ETYPE;
ether_addr_copy(filter->key.etype.dmac.value,
match.key->dst);
@ -805,13 +806,34 @@ int ocelot_cls_flower_replace(struct ocelot *ocelot, int port,
struct netlink_ext_ack *extack = f->common.extack;
struct ocelot_vcap_filter *filter;
int chain = f->common.chain_index;
int ret;
int block_id, ret;
if (chain && !ocelot_find_vcap_filter_that_points_at(ocelot, chain)) {
NL_SET_ERR_MSG_MOD(extack, "No default GOTO action points to this chain");
return -EOPNOTSUPP;
}
block_id = ocelot_chain_to_block(chain, ingress);
if (block_id < 0) {
NL_SET_ERR_MSG_MOD(extack, "Cannot offload to this chain");
return -EOPNOTSUPP;
}
filter = ocelot_vcap_block_find_filter_by_id(&ocelot->block[block_id],
f->cookie, true);
if (filter) {
/* Filter already exists on other ports */
if (!ingress) {
NL_SET_ERR_MSG_MOD(extack, "VCAP ES0 does not support shared filters");
return -EOPNOTSUPP;
}
filter->ingress_port_mask |= BIT(port);
return ocelot_vcap_filter_replace(ocelot, filter);
}
/* Filter didn't exist, create it now */
filter = ocelot_vcap_filter_create(ocelot, port, ingress, f);
if (!filter)
return -ENOMEM;
@ -874,6 +896,12 @@ int ocelot_cls_flower_destroy(struct ocelot *ocelot, int port,
if (filter->type == OCELOT_VCAP_FILTER_DUMMY)
return ocelot_vcap_dummy_filter_del(ocelot, filter);
if (ingress) {
filter->ingress_port_mask &= ~BIT(port);
if (filter->ingress_port_mask)
return ocelot_vcap_filter_replace(ocelot, filter);
}
return ocelot_vcap_filter_del(ocelot, filter);
}
EXPORT_SYMBOL_GPL(ocelot_cls_flower_destroy);

6
drivers/net/ethernet/mscc/ocelot_net.c
View File

@ -1187,7 +1187,7 @@ static int ocelot_netdevice_bridge_join(struct net_device *dev,
ocelot_port_bridge_join(ocelot, port, bridge);
err = switchdev_bridge_port_offload(brport_dev, dev, priv,
&ocelot_netdevice_nb,
&ocelot_switchdev_nb,
&ocelot_switchdev_blocking_nb,
false, extack);
if (err)
@ -1201,7 +1201,7 @@ static int ocelot_netdevice_bridge_join(struct net_device *dev,
err_switchdev_sync:
switchdev_bridge_port_unoffload(brport_dev, priv,
&ocelot_netdevice_nb,
&ocelot_switchdev_nb,
&ocelot_switchdev_blocking_nb);
err_switchdev_offload:
ocelot_port_bridge_leave(ocelot, port, bridge);
@ -1214,7 +1214,7 @@ static void ocelot_netdevice_pre_bridge_leave(struct net_device *dev,
struct ocelot_port_private *priv = netdev_priv(dev);
switchdev_bridge_port_unoffload(brport_dev, priv,
&ocelot_netdevice_nb,
&ocelot_switchdev_nb,
&ocelot_switchdev_blocking_nb);
}

81
drivers/net/ethernet/stmicro/stmmac/dwmac-oxnas.c
View File

@ -12,6 +12,7 @@
#include <linux/io.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/mfd/syscon.h>
@ -48,32 +49,46 @@
#define DWMAC_RX_VARDELAY(d) ((d) << DWMAC_RX_VARDELAY_SHIFT)
#define DWMAC_RXN_VARDELAY(d) ((d) << DWMAC_RXN_VARDELAY_SHIFT)
struct oxnas_dwmac;
struct oxnas_dwmac_data {
int (*setup)(struct oxnas_dwmac *dwmac);
};
struct oxnas_dwmac {
struct device *dev;
struct clk *clk;
struct regmap *regmap;
const struct oxnas_dwmac_data *data;
};
static int oxnas_dwmac_init(struct platform_device *pdev, void *priv)
static int oxnas_dwmac_setup_ox810se(struct oxnas_dwmac *dwmac)
{
struct oxnas_dwmac *dwmac = priv;
unsigned int value;
int ret;
/* Reset HW here before changing the glue configuration */
ret = device_reset(dwmac->dev);
if (ret)
ret = regmap_read(dwmac->regmap, OXNAS_DWMAC_CTRL_REGOFFSET, &value);
if (ret < 0)
return ret;
ret = clk_prepare_enable(dwmac->clk);
if (ret)
return ret;
/* Enable GMII_GTXCLK to follow GMII_REFCLK, required for gigabit PHY */
value |= BIT(DWMAC_CKEN_GTX) |
/* Use simple mux for 25/125 Mhz clock switching */
BIT(DWMAC_SIMPLE_MUX);
regmap_write(dwmac->regmap, OXNAS_DWMAC_CTRL_REGOFFSET, value);
return 0;
}
static int oxnas_dwmac_setup_ox820(struct oxnas_dwmac *dwmac)
{
unsigned int value;
int ret;
ret = regmap_read(dwmac->regmap, OXNAS_DWMAC_CTRL_REGOFFSET, &value);
if (ret < 0) {
clk_disable_unprepare(dwmac->clk);
if (ret < 0)
return ret;
}
/* Enable GMII_GTXCLK to follow GMII_REFCLK, required for gigabit PHY */
value |= BIT(DWMAC_CKEN_GTX) |
@ -100,6 +115,27 @@ static int oxnas_dwmac_init(struct platform_device *pdev, void *priv)
return 0;
}
static int oxnas_dwmac_init(struct platform_device *pdev, void *priv)
{
struct oxnas_dwmac *dwmac = priv;
int ret;
/* Reset HW here before changing the glue configuration */
ret = device_reset(dwmac->dev);
if (ret)
return ret;
ret = clk_prepare_enable(dwmac->clk);
if (ret)
return ret;
ret = dwmac->data->setup(dwmac);
if (ret)
clk_disable_unprepare(dwmac->clk);
return ret;
}
static void oxnas_dwmac_exit(struct platform_device *pdev, void *priv)
{
struct oxnas_dwmac *dwmac = priv;
@ -128,6 +164,12 @@ static int oxnas_dwmac_probe(struct platform_device *pdev)
goto err_remove_config_dt;
}
dwmac->data = (const struct oxnas_dwmac_data *)of_device_get_match_data(&pdev->dev);
if (!dwmac->data) {
ret = -EINVAL;
goto err_remove_config_dt;
}
dwmac->dev = &pdev->dev;
plat_dat->bsp_priv = dwmac;
plat_dat->init = oxnas_dwmac_init;
@ -166,8 +208,23 @@ err_remove_config_dt:
return ret;
}
static const struct oxnas_dwmac_data ox810se_dwmac_data = {
.setup = oxnas_dwmac_setup_ox810se,
};
static const struct oxnas_dwmac_data ox820_dwmac_data = {
.setup = oxnas_dwmac_setup_ox820,
};
static const struct of_device_id oxnas_dwmac_match[] = {
{ .compatible = "oxsemi,ox820-dwmac" },
{
.compatible = "oxsemi,ox810se-dwmac",
.data = &ox810se_dwmac_data,
},
{
.compatible = "oxsemi,ox820-dwmac",
.data = &ox820_dwmac_data,
},
{ }
};
MODULE_DEVICE_TABLE(of, oxnas_dwmac_match);

1
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
View File

@ -7159,6 +7159,7 @@ int stmmac_dvr_probe(struct device *device,
pm_runtime_get_noresume(device);
pm_runtime_set_active(device);
if (!pm_runtime_enabled(device))
pm_runtime_enable(device);
if (priv->hw->pcs != STMMAC_PCS_TBI &&

6
drivers/net/ethernet/ti/cpsw.c
View File

@ -349,7 +349,7 @@ static void cpsw_rx_handler(void *token, int len, int status)
struct cpsw_common *cpsw = ndev_to_cpsw(xmeta->ndev);
int pkt_size = cpsw->rx_packet_max;
int ret = 0, port, ch = xmeta->ch;
int headroom = CPSW_HEADROOM;
int headroom = CPSW_HEADROOM_NA;
struct net_device *ndev = xmeta->ndev;
struct cpsw_priv *priv;
struct page_pool *pool;
@ -392,7 +392,7 @@ static void cpsw_rx_handler(void *token, int len, int status)
}
if (priv->xdp_prog) {
int headroom = CPSW_HEADROOM, size = len;
int size = len;
xdp_init_buff(&xdp, PAGE_SIZE, &priv->xdp_rxq[ch]);
if (status & CPDMA_RX_VLAN_ENCAP) {
@ -442,7 +442,7 @@ requeue:
xmeta->ndev = ndev;
xmeta->ch = ch;
dma = page_pool_get_dma_addr(new_page) + CPSW_HEADROOM;
dma = page_pool_get_dma_addr(new_page) + CPSW_HEADROOM_NA;
ret = cpdma_chan_submit_mapped(cpsw->rxv[ch].ch, new_page, dma,
pkt_size, 0);
if (ret < 0) {

6
drivers/net/ethernet/ti/cpsw_new.c
View File

@ -283,7 +283,7 @@ static void cpsw_rx_handler(void *token, int len, int status)
{
struct page *new_page, *page = token;
void *pa = page_address(page);
int headroom = CPSW_HEADROOM;
int headroom = CPSW_HEADROOM_NA;
struct cpsw_meta_xdp *xmeta;
struct cpsw_common *cpsw;
struct net_device *ndev;
@ -336,7 +336,7 @@ static void cpsw_rx_handler(void *token, int len, int status)
}
if (priv->xdp_prog) {
int headroom = CPSW_HEADROOM, size = len;
int size = len;
xdp_init_buff(&xdp, PAGE_SIZE, &priv->xdp_rxq[ch]);
if (status & CPDMA_RX_VLAN_ENCAP) {
@ -386,7 +386,7 @@ requeue:
xmeta->ndev = ndev;
xmeta->ch = ch;
dma = page_pool_get_dma_addr(new_page) + CPSW_HEADROOM;
dma = page_pool_get_dma_addr(new_page) + CPSW_HEADROOM_NA;
ret = cpdma_chan_submit_mapped(cpsw->rxv[ch].ch, new_page, dma,
pkt_size, 0);
if (ret < 0) {

2
drivers/net/ethernet/ti/cpsw_priv.c
View File

@ -1122,7 +1122,7 @@ int cpsw_fill_rx_channels(struct cpsw_priv *priv)
xmeta->ndev = priv->ndev;
xmeta->ch = ch;
dma = page_pool_get_dma_addr(page) + CPSW_HEADROOM;
dma = page_pool_get_dma_addr(page) + CPSW_HEADROOM_NA;
ret = cpdma_chan_idle_submit_mapped(cpsw->rxv[ch].ch,
page, dma,
cpsw->rx_packet_max,

2
drivers/net/ethernet/vertexcom/Kconfig
View File

@ -5,7 +5,7 @@
config NET_VENDOR_VERTEXCOM
bool "Vertexcom devices"
default n
default y
help
If you have a network (Ethernet) card belonging to this class, say Y.

129
drivers/net/ethernet/xilinx/xilinx_axienet_main.c
View File

@ -41,8 +41,9 @@
#include "xilinx_axienet.h"
/* Descriptors defines for Tx and Rx DMA */
#define TX_BD_NUM_DEFAULT 64
#define TX_BD_NUM_DEFAULT 128
#define RX_BD_NUM_DEFAULT 1024
#define TX_BD_NUM_MIN (MAX_SKB_FRAGS + 1)
#define TX_BD_NUM_MAX 4096
#define RX_BD_NUM_MAX 4096
@ -496,7 +497,8 @@ static void axienet_setoptions(struct net_device *ndev, u32 options)
static int __axienet_device_reset(struct axienet_local *lp)
{
u32 timeout;
u32 value;
int ret;
/* Reset Axi DMA. This would reset Axi Ethernet core as well. The reset
* process of Axi DMA takes a while to complete as all pending
@ -506,15 +508,23 @@ static int __axienet_device_reset(struct axienet_local *lp)
* they both reset the entire DMA core, so only one needs to be used.
*/
axienet_dma_out32(lp, XAXIDMA_TX_CR_OFFSET, XAXIDMA_CR_RESET_MASK);
timeout = DELAY_OF_ONE_MILLISEC;
while (axienet_dma_in32(lp, XAXIDMA_TX_CR_OFFSET) &
XAXIDMA_CR_RESET_MASK) {
udelay(1);
if (--timeout == 0) {
netdev_err(lp->ndev, "%s: DMA reset timeout!\n",
__func__);
return -ETIMEDOUT;
ret = read_poll_timeout(axienet_dma_in32, value,
!(value & XAXIDMA_CR_RESET_MASK),
DELAY_OF_ONE_MILLISEC, 50000, false, lp,
XAXIDMA_TX_CR_OFFSET);
if (ret) {
dev_err(lp->dev, "%s: DMA reset timeout!\n", __func__);
return ret;
}
/* Wait for PhyRstCmplt bit to be set, indicating the PHY reset has finished */
ret = read_poll_timeout(axienet_ior, value,
value & XAE_INT_PHYRSTCMPLT_MASK,
DELAY_OF_ONE_MILLISEC, 50000, false, lp,
XAE_IS_OFFSET);
if (ret) {
dev_err(lp->dev, "%s: timeout waiting for PhyRstCmplt\n", __func__);
return ret;
}
return 0;
@ -623,6 +633,8 @@ static int axienet_free_tx_chain(struct net_device *ndev, u32 first_bd,
if (nr_bds == -1 && !(status & XAXIDMA_BD_STS_COMPLETE_MASK))
break;
/* Ensure we see complete descriptor update */
dma_rmb();
phys = desc_get_phys_addr(lp, cur_p);
dma_unmap_single(ndev->dev.parent, phys,
(cur_p->cntrl & XAXIDMA_BD_CTRL_LENGTH_MASK),
@ -631,13 +643,15 @@ static int axienet_free_tx_chain(struct net_device *ndev, u32 first_bd,
if (cur_p->skb && (status & XAXIDMA_BD_STS_COMPLETE_MASK))
dev_consume_skb_irq(cur_p->skb);
cur_p->cntrl = 0;
cur_p->app0 = 0;
cur_p->app1 = 0;
cur_p->app2 = 0;
cur_p->app4 = 0;
cur_p->status = 0;
cur_p->skb = NULL;
/* ensure our transmit path and device don't prematurely see status cleared */
wmb();
cur_p->cntrl = 0;
cur_p->status = 0;
if (sizep)
*sizep += status & XAXIDMA_BD_STS_ACTUAL_LEN_MASK;
@ -646,6 +660,32 @@ static int axienet_free_tx_chain(struct net_device *ndev, u32 first_bd,
return i;
}
/**
* axienet_check_tx_bd_space - Checks if a BD/group of BDs are currently busy
* @lp: Pointer to the axienet_local structure
* @num_frag: The number of BDs to check for
*
* Return: 0, on success
* NETDEV_TX_BUSY, if any of the descriptors are not free
*
* This function is invoked before BDs are allocated and transmission starts.
* This function returns 0 if a BD or group of BDs can be allocated for
* transmission. If the BD or any of the BDs are not free the function
* returns a busy status. This is invoked from axienet_start_xmit.
*/
static inline int axienet_check_tx_bd_space(struct axienet_local *lp,
int num_frag)
{
struct axidma_bd *cur_p;
/* Ensure we see all descriptor updates from device or TX IRQ path */
rmb();
cur_p = &lp->tx_bd_v[(lp->tx_bd_tail + num_frag) % lp->tx_bd_num];
if (cur_p->cntrl)
return NETDEV_TX_BUSY;
return 0;
}
/**
* axienet_start_xmit_done - Invoked once a transmit is completed by the
* Axi DMA Tx channel.
@ -675,32 +715,10 @@ static void axienet_start_xmit_done(struct net_device *ndev)
/* Matches barrier in axienet_start_xmit */
smp_mb();
if (!axienet_check_tx_bd_space(lp, MAX_SKB_FRAGS + 1))
netif_wake_queue(ndev);
}
/**
* axienet_check_tx_bd_space - Checks if a BD/group of BDs are currently busy
* @lp: Pointer to the axienet_local structure
* @num_frag: The number of BDs to check for
*
* Return: 0, on success
* NETDEV_TX_BUSY, if any of the descriptors are not free
*
* This function is invoked before BDs are allocated and transmission starts.
* This function returns 0 if a BD or group of BDs can be allocated for
* transmission. If the BD or any of the BDs are not free the function
* returns a busy status. This is invoked from axienet_start_xmit.
*/
static inline int axienet_check_tx_bd_space(struct axienet_local *lp,
int num_frag)
{
struct axidma_bd *cur_p;
cur_p = &lp->tx_bd_v[(lp->tx_bd_tail + num_frag) % lp->tx_bd_num];
if (cur_p->status & XAXIDMA_BD_STS_ALL_MASK)
return NETDEV_TX_BUSY;
return 0;
}
/**
* axienet_start_xmit - Starts the transmission.
* @skb: sk_buff pointer that contains data to be Txed.
@ -730,20 +748,15 @@ axienet_start_xmit(struct sk_buff *skb, struct net_device *ndev)
num_frag = skb_shinfo(skb)->nr_frags;
cur_p = &lp->tx_bd_v[lp->tx_bd_tail];
if (axienet_check_tx_bd_space(lp, num_frag)) {
if (netif_queue_stopped(ndev))
return NETDEV_TX_BUSY;
if (axienet_check_tx_bd_space(lp, num_frag + 1)) {
/* Should not happen as last start_xmit call should have
* checked for sufficient space and queue should only be
* woken when sufficient space is available.
*/
netif_stop_queue(ndev);
/* Matches barrier in axienet_start_xmit_done */
smp_mb();
/* Space might have just been freed - check again */
if (axienet_check_tx_bd_space(lp, num_frag))
if (net_ratelimit())
netdev_warn(ndev, "TX ring unexpectedly full\n");
return NETDEV_TX_BUSY;
netif_wake_queue(ndev);
}
if (skb->ip_summed == CHECKSUM_PARTIAL) {
@ -804,6 +817,18 @@ axienet_start_xmit(struct sk_buff *skb, struct net_device *ndev)
if (++lp->tx_bd_tail >= lp->tx_bd_num)
lp->tx_bd_tail = 0;
/* Stop queue if next transmit may not have space */
if (axienet_check_tx_bd_space(lp, MAX_SKB_FRAGS + 1)) {
netif_stop_queue(ndev);
/* Matches barrier in axienet_start_xmit_done */
smp_mb();
/* Space might have just been freed - check again */
if (!axienet_check_tx_bd_space(lp, MAX_SKB_FRAGS + 1))
netif_wake_queue(ndev);
}
return NETDEV_TX_OK;
}
@ -834,6 +859,8 @@ static void axienet_recv(struct net_device *ndev)
tail_p = lp->rx_bd_p + sizeof(*lp->rx_bd_v) * lp->rx_bd_ci;
/* Ensure we see complete descriptor update */
dma_rmb();
phys = desc_get_phys_addr(lp, cur_p);
dma_unmap_single(ndev->dev.parent, phys, lp->max_frm_size,
DMA_FROM_DEVICE);
@ -1352,7 +1379,8 @@ axienet_ethtools_set_ringparam(struct net_device *ndev,
if (ering->rx_pending > RX_BD_NUM_MAX ||
ering->rx_mini_pending ||
ering->rx_jumbo_pending ||
ering->rx_pending > TX_BD_NUM_MAX)
ering->tx_pending < TX_BD_NUM_MIN ||
ering->tx_pending > TX_BD_NUM_MAX)
return -EINVAL;
if (netif_running(ndev))
@ -2027,6 +2055,11 @@ static int axienet_probe(struct platform_device *pdev)
lp->coalesce_count_rx = XAXIDMA_DFT_RX_THRESHOLD;
lp->coalesce_count_tx = XAXIDMA_DFT_TX_THRESHOLD;
/* Reset core now that clocks are enabled, prior to accessing MDIO */
ret = __axienet_device_reset(lp);
if (ret)
goto cleanup_clk;
lp->phy_node = of_parse_phandle(pdev->dev.of_node, "phy-handle", 0);
if (lp->phy_node) {
ret = axienet_mdio_setup(lp);

28
drivers/net/ipa/ipa_endpoint.c
View File

@ -1080,27 +1080,38 @@ static void ipa_endpoint_replenish(struct ipa_endpoint *endpoint, bool add_one)
{
struct gsi *gsi;
u32 backlog;
int delta;
if (!endpoint->replenish_enabled) {
if (!test_bit(IPA_REPLENISH_ENABLED, endpoint->replenish_flags)) {
if (add_one)
atomic_inc(&endpoint->replenish_saved);
return;
}
/* If already active, just update the backlog */
if (test_and_set_bit(IPA_REPLENISH_ACTIVE, endpoint->replenish_flags)) {
if (add_one)
atomic_inc(&endpoint->replenish_backlog);
return;
}
while (atomic_dec_not_zero(&endpoint->replenish_backlog))
if (ipa_endpoint_replenish_one(endpoint))
goto try_again_later;
clear_bit(IPA_REPLENISH_ACTIVE, endpoint->replenish_flags);
if (add_one)
atomic_inc(&endpoint->replenish_backlog);
return;
try_again_later:
/* The last one didn't succeed, so fix the backlog */
backlog = atomic_inc_return(&endpoint->replenish_backlog);
clear_bit(IPA_REPLENISH_ACTIVE, endpoint->replenish_flags);
if (add_one)
atomic_inc(&endpoint->replenish_backlog);
/* The last one didn't succeed, so fix the backlog */
delta = add_one ? 2 : 1;
backlog = atomic_add_return(delta, &endpoint->replenish_backlog);
/* Whenever a receive buffer transaction completes we'll try to
* replenish again. It's unlikely, but if we fail to supply even
@ -1120,7 +1131,7 @@ static void ipa_endpoint_replenish_enable(struct ipa_endpoint *endpoint)
u32 max_backlog;
u32 saved;
endpoint->replenish_enabled = true;
set_bit(IPA_REPLENISH_ENABLED, endpoint->replenish_flags);
while ((saved = atomic_xchg(&endpoint->replenish_saved, 0)))
atomic_add(saved, &endpoint->replenish_backlog);
@ -1134,7 +1145,7 @@ static void ipa_endpoint_replenish_disable(struct ipa_endpoint *endpoint)
{
u32 backlog;
endpoint->replenish_enabled = false;
clear_bit(IPA_REPLENISH_ENABLED, endpoint->replenish_flags);
while ((backlog = atomic_xchg(&endpoint->replenish_backlog, 0)))
atomic_add(backlog, &endpoint->replenish_saved);
}
@ -1691,7 +1702,8 @@ static void ipa_endpoint_setup_one(struct ipa_endpoint *endpoint)
/* RX transactions require a single TRE, so the maximum
* backlog is the same as the maximum outstanding TREs.
*/
endpoint->replenish_enabled = false;
clear_bit(IPA_REPLENISH_ENABLED, endpoint->replenish_flags);
clear_bit(IPA_REPLENISH_ACTIVE, endpoint->replenish_flags);
atomic_set(&endpoint->replenish_saved,
gsi_channel_tre_max(gsi, endpoint->channel_id));
atomic_set(&endpoint->replenish_backlog, 0);

17
drivers/net/ipa/ipa_endpoint.h
View File

@ -40,6 +40,19 @@ enum ipa_endpoint_name {
#define IPA_ENDPOINT_MAX 32 /* Max supported by driver */
/**
* enum ipa_replenish_flag: RX buffer replenish flags
*
* @IPA_REPLENISH_ENABLED: Whether receive buffer replenishing is enabled
* @IPA_REPLENISH_ACTIVE: Whether replenishing is underway
* @IPA_REPLENISH_COUNT: Number of defined replenish flags
*/
enum ipa_replenish_flag {
IPA_REPLENISH_ENABLED,
IPA_REPLENISH_ACTIVE,
IPA_REPLENISH_COUNT, /* Number of flags (must be last) */
};
/**
* struct ipa_endpoint - IPA endpoint information
* @ipa: IPA pointer
@ -51,7 +64,7 @@ enum ipa_endpoint_name {
* @trans_tre_max: Maximum number of TRE descriptors per transaction
* @evt_ring_id: GSI event ring used by the endpoint
* @netdev: Network device pointer, if endpoint uses one
* @replenish_enabled: Whether receive buffer replenishing is enabled
* @replenish_flags: Replenishing state flags
* @replenish_ready: Number of replenish transactions without doorbell
* @replenish_saved: Replenish requests held while disabled
* @replenish_backlog: Number of buffers needed to fill hardware queue
@ -72,7 +85,7 @@ struct ipa_endpoint {
struct net_device *netdev;
/* Receive buffer replenishing for RX endpoints */
bool replenish_enabled;
DECLARE_BITMAP(replenish_flags, IPA_REPLENISH_COUNT);
u32 replenish_ready;
atomic_t replenish_saved;
atomic_t replenish_backlog;

2
drivers/net/phy/at803x.c
View File

@ -421,7 +421,7 @@ static int at803x_set_wol(struct phy_device *phydev,
const u8 *mac;
int ret, irq_enabled;
unsigned int i;
const unsigned int offsets[] = {
static const unsigned int offsets[] = {
AT803X_LOC_MAC_ADDR_32_47_OFFSET,
AT803X_LOC_MAC_ADDR_16_31_OFFSET,
AT803X_LOC_MAC_ADDR_0_15_OFFSET,

56
drivers/net/phy/marvell.c
View File

@ -189,6 +189,8 @@
#define MII_88E1510_GEN_CTRL_REG_1_MODE_RGMII_SGMII 0x4
#define MII_88E1510_GEN_CTRL_REG_1_RESET 0x8000 /* Soft reset */
#define MII_88E1510_MSCR_2 0x15
#define MII_VCT5_TX_RX_MDI0_COUPLING 0x10
#define MII_VCT5_TX_RX_MDI1_COUPLING 0x11
#define MII_VCT5_TX_RX_MDI2_COUPLING 0x12
@ -1932,6 +1934,58 @@ static void marvell_get_stats(struct phy_device *phydev,
data[i] = marvell_get_stat(phydev, i);
}
static int m88e1510_loopback(struct phy_device *phydev, bool enable)
{
int err;
if (enable) {
u16 bmcr_ctl = 0, mscr2_ctl = 0;
if (phydev->speed == SPEED_1000)
bmcr_ctl = BMCR_SPEED1000;
else if (phydev->speed == SPEED_100)
bmcr_ctl = BMCR_SPEED100;
if (phydev->duplex == DUPLEX_FULL)
bmcr_ctl |= BMCR_FULLDPLX;
err = phy_write(phydev, MII_BMCR, bmcr_ctl);
if (err < 0)
return err;
if (phydev->speed == SPEED_1000)
mscr2_ctl = BMCR_SPEED1000;
else if (phydev->speed == SPEED_100)
mscr2_ctl = BMCR_SPEED100;
err = phy_modify_paged(phydev, MII_MARVELL_MSCR_PAGE,
MII_88E1510_MSCR_2, BMCR_SPEED1000 |
BMCR_SPEED100, mscr2_ctl);
if (err < 0)
return err;
/* Need soft reset to have speed configuration takes effect */
err = genphy_soft_reset(phydev);
if (err < 0)
return err;
/* FIXME: Based on trial and error test, it seem 1G need to have
* delay between soft reset and loopback enablement.
*/
if (phydev->speed == SPEED_1000)
msleep(1000);
return phy_modify(phydev, MII_BMCR, BMCR_LOOPBACK,
BMCR_LOOPBACK);
} else {
err = phy_modify(phydev, MII_BMCR, BMCR_LOOPBACK, 0);
if (err < 0)
return err;
return phy_config_aneg(phydev);
}
}
static int marvell_vct5_wait_complete(struct phy_device *phydev)
{
int i;
@ -3078,7 +3132,7 @@ static struct phy_driver marvell_drivers[] = {
.get_sset_count = marvell_get_sset_count,
.get_strings = marvell_get_strings,
.get_stats = marvell_get_stats,
.set_loopback = genphy_loopback,
.set_loopback = m88e1510_loopback,
.get_tunable = m88e1011_get_tunable,
.set_tunable = m88e1011_set_tunable,
.cable_test_start = marvell_vct7_cable_test_start,

36
drivers/net/phy/micrel.c
View File

@ -1726,8 +1726,8 @@ static struct phy_driver ksphy_driver[] = {
.config_init = kszphy_config_init,
.config_intr = kszphy_config_intr,
.handle_interrupt = kszphy_handle_interrupt,
.suspend = genphy_suspend,
.resume = genphy_resume,
.suspend = kszphy_suspend,
.resume = kszphy_resume,
}, {
.phy_id = PHY_ID_KSZ8021,
.phy_id_mask = 0x00ffffff,
@ -1741,8 +1741,8 @@ static struct phy_driver ksphy_driver[] = {
.get_sset_count = kszphy_get_sset_count,
.get_strings = kszphy_get_strings,
.get_stats = kszphy_get_stats,
.suspend = genphy_suspend,
.resume = genphy_resume,
.suspend = kszphy_suspend,
.resume = kszphy_resume,
}, {
.phy_id = PHY_ID_KSZ8031,
.phy_id_mask = 0x00ffffff,
@ -1756,8 +1756,8 @@ static struct phy_driver ksphy_driver[] = {
.get_sset_count = kszphy_get_sset_count,
.get_strings = kszphy_get_strings,
.get_stats = kszphy_get_stats,
.suspend = genphy_suspend,
.resume = genphy_resume,
.suspend = kszphy_suspend,
.resume = kszphy_resume,
}, {
.phy_id = PHY_ID_KSZ8041,
.phy_id_mask = MICREL_PHY_ID_MASK,
@ -1788,8 +1788,8 @@ static struct phy_driver ksphy_driver[] = {
.get_sset_count = kszphy_get_sset_count,
.get_strings = kszphy_get_strings,
.get_stats = kszphy_get_stats,
.suspend = genphy_suspend,
.resume = genphy_resume,
.suspend = kszphy_suspend,
.resume = kszphy_resume,
}, {
.name = "Micrel KSZ8051",
/* PHY_BASIC_FEATURES */
@ -1802,8 +1802,8 @@ static struct phy_driver ksphy_driver[] = {
.get_strings = kszphy_get_strings,
.get_stats = kszphy_get_stats,
.match_phy_device = ksz8051_match_phy_device,
.suspend = genphy_suspend,
.resume = genphy_resume,
.suspend = kszphy_suspend,
.resume = kszphy_resume,
}, {
.phy_id = PHY_ID_KSZ8001,
.name = "Micrel KSZ8001 or KS8721",
@ -1817,8 +1817,8 @@ static struct phy_driver ksphy_driver[] = {
.get_sset_count = kszphy_get_sset_count,
.get_strings = kszphy_get_strings,
.get_stats = kszphy_get_stats,
.suspend = genphy_suspend,
.resume = genphy_resume,
.suspend = kszphy_suspend,
.resume = kszphy_resume,
}, {
.phy_id = PHY_ID_KSZ8081,
.name = "Micrel KSZ8081 or KSZ8091",
@ -1848,8 +1848,8 @@ static struct phy_driver ksphy_driver[] = {
.config_init = ksz8061_config_init,
.config_intr = kszphy_config_intr,
.handle_interrupt = kszphy_handle_interrupt,
.suspend = genphy_suspend,
.resume = genphy_resume,
.suspend = kszphy_suspend,
.resume = kszphy_resume,
}, {
.phy_id = PHY_ID_KSZ9021,
.phy_id_mask = 0x000ffffe,
@ -1864,8 +1864,8 @@ static struct phy_driver ksphy_driver[] = {
.get_sset_count = kszphy_get_sset_count,
.get_strings = kszphy_get_strings,
.get_stats = kszphy_get_stats,
.suspend = genphy_suspend,
.resume = genphy_resume,
.suspend = kszphy_suspend,
.resume = kszphy_resume,
.read_mmd = genphy_read_mmd_unsupported,
.write_mmd = genphy_write_mmd_unsupported,
}, {
@ -1883,7 +1883,7 @@ static struct phy_driver ksphy_driver[] = {
.get_sset_count = kszphy_get_sset_count,
.get_strings = kszphy_get_strings,
.get_stats = kszphy_get_stats,
.suspend = genphy_suspend,
.suspend = kszphy_suspend,
.resume = kszphy_resume,
}, {
.phy_id = PHY_ID_LAN8814,
@ -1928,7 +1928,7 @@ static struct phy_driver ksphy_driver[] = {
.get_sset_count = kszphy_get_sset_count,
.get_strings = kszphy_get_strings,
.get_stats = kszphy_get_stats,
.suspend = genphy_suspend,
.suspend = kszphy_suspend,
.resume = kszphy_resume,
}, {
.phy_id = PHY_ID_KSZ8873MLL,

25
drivers/net/phy/sfp.c
View File

@ -1641,17 +1641,20 @@ static int sfp_sm_probe_for_phy(struct sfp *sfp)
static int sfp_module_parse_power(struct sfp *sfp)
{
u32 power_mW = 1000;
bool supports_a2;
if (sfp->id.ext.options & cpu_to_be16(SFP_OPTIONS_POWER_DECL))
power_mW = 1500;
if (sfp->id.ext.options & cpu_to_be16(SFP_OPTIONS_HIGH_POWER_LEVEL))
power_mW = 2000;
supports_a2 = sfp->id.ext.sff8472_compliance !=
SFP_SFF8472_COMPLIANCE_NONE ||
sfp->id.ext.diagmon & SFP_DIAGMON_DDM;
if (power_mW > sfp->max_power_mW) {
/* Module power specification exceeds the allowed maximum. */
if (sfp->id.ext.sff8472_compliance ==
SFP_SFF8472_COMPLIANCE_NONE &&
!(sfp->id.ext.diagmon & SFP_DIAGMON_DDM)) {
if (!supports_a2) {
/* The module appears not to implement bus address
* 0xa2, so assume that the module powers up in the
* indicated mode.
@ -1668,11 +1671,25 @@ static int sfp_module_parse_power(struct sfp *sfp)
}
}
if (power_mW <= 1000) {
/* Modules below 1W do not require a power change sequence */
sfp->module_power_mW = power_mW;
return 0;
}
if (!supports_a2) {
/* The module power level is below the host maximum and the
* module appears not to implement bus address 0xa2, so assume
* that the module powers up in the indicated mode.
*/
return 0;
}
/* If the module requires a higher power mode, but also requires
* an address change sequence, warn the user that the module may
* not be functional.
*/
if (sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE && power_mW > 1000) {
if (sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE) {
dev_warn(sfp->dev,
"Address Change Sequence not supported but module requires %u.%uW, module may not be functional\n",
power_mW / 1000, (power_mW / 100) % 10);

2
drivers/net/usb/qmi_wwan.c
View File

@ -1316,6 +1316,7 @@ static const struct usb_device_id products[] = {
{QMI_FIXED_INTF(0x19d2, 0x1426, 2)}, /* ZTE MF91 */
{QMI_FIXED_INTF(0x19d2, 0x1428, 2)}, /* Telewell TW-LTE 4G v2 */
{QMI_FIXED_INTF(0x19d2, 0x1432, 3)}, /* ZTE ME3620 */
{QMI_FIXED_INTF(0x19d2, 0x1485, 5)}, /* ZTE MF286D */
{QMI_FIXED_INTF(0x19d2, 0x2002, 4)}, /* ZTE (Vodafone) K3765-Z */
{QMI_FIXED_INTF(0x2001, 0x7e16, 3)}, /* D-Link DWM-221 */
{QMI_FIXED_INTF(0x2001, 0x7e19, 4)}, /* D-Link DWM-221 B1 */
@ -1401,6 +1402,7 @@ static const struct usb_device_id products[] = {
{QMI_FIXED_INTF(0x413c, 0x81e0, 0)}, /* Dell Wireless 5821e with eSIM support*/
{QMI_FIXED_INTF(0x03f0, 0x4e1d, 8)}, /* HP lt4111 LTE/EV-DO/HSPA+ Gobi 4G Module */
{QMI_FIXED_INTF(0x03f0, 0x9d1d, 1)}, /* HP lt4120 Snapdragon X5 LTE */
{QMI_QUIRK_SET_DTR(0x22de, 0x9051, 2)}, /* Hucom Wireless HM-211S/K */
{QMI_FIXED_INTF(0x22de, 0x9061, 3)}, /* WeTelecom WPD-600N */
{QMI_QUIRK_SET_DTR(0x1e0e, 0x9001, 5)}, /* SIMCom 7100E, 7230E, 7600E ++ */
{QMI_QUIRK_SET_DTR(0x2c7c, 0x0121, 4)}, /* Quectel EC21 Mini PCIe */

3
drivers/net/usb/smsc95xx.c
View File

@ -1962,7 +1962,8 @@ static const struct driver_info smsc95xx_info = {
.bind = smsc95xx_bind,
.unbind = smsc95xx_unbind,
.link_reset = smsc95xx_link_reset,
.reset = smsc95xx_start_phy,
.reset = smsc95xx_reset,
.check_connect = smsc95xx_start_phy,
.stop = smsc95xx_stop,
.rx_fixup = smsc95xx_rx_fixup,
.tx_fixup = smsc95xx_tx_fixup,

4
drivers/net/wwan/mhi_wwan_mbim.c
View File

@ -385,13 +385,13 @@ static void mhi_net_rx_refill_work(struct work_struct *work)
int err;
while (!mhi_queue_is_full(mdev, DMA_FROM_DEVICE)) {
struct sk_buff *skb = alloc_skb(MHI_DEFAULT_MRU, GFP_KERNEL);
struct sk_buff *skb = alloc_skb(mbim->mru, GFP_KERNEL);
if (unlikely(!skb))
break;
err = mhi_queue_skb(mdev, DMA_FROM_DEVICE, skb,
MHI_DEFAULT_MRU, MHI_EOT);
mbim->mru, MHI_EOT);
if (unlikely(err)) {
kfree_skb(skb);
break;

2
drivers/nfc/pn544/i2c.c
View File

@ -188,7 +188,7 @@ do { \
static void pn544_hci_i2c_platform_init(struct pn544_i2c_phy *phy)
{
int polarity, retry, ret;
char rset_cmd[] = { 0x05, 0xF9, 0x04, 0x00, 0xC3, 0xE5 };
static const char rset_cmd[] = { 0x05, 0xF9, 0x04, 0x00, 0xC3, 0xE5 };
int count = sizeof(rset_cmd);
nfc_info(&phy->i2c_dev->dev, "Detecting nfc_en polarity\n");

10
drivers/nfc/st21nfca/se.c
View File

@ -316,6 +316,11 @@ int st21nfca_connectivity_event_received(struct nfc_hci_dev *hdev, u8 host,
return -ENOMEM;
transaction->aid_len = skb->data[1];
/* Checking if the length of the AID is valid */
if (transaction->aid_len > sizeof(transaction->aid))
return -EINVAL;
memcpy(transaction->aid, &skb->data[2],
transaction->aid_len);
@ -325,6 +330,11 @@ int st21nfca_connectivity_event_received(struct nfc_hci_dev *hdev, u8 host,
return -EPROTO;
transaction->params_len = skb->data[transaction->aid_len + 3];
/* Total size is allocated (skb->len - 2) minus fixed array members */
if (transaction->params_len > ((skb->len - 2) - sizeof(struct nfc_evt_transaction)))
return -EINVAL;
memcpy(transaction->params, skb->data +
transaction->aid_len + 4, transaction->params_len);

9
include/linux/bpf.h
View File

@ -316,7 +316,12 @@ enum bpf_type_flag {
*/
MEM_RDONLY = BIT(1 + BPF_BASE_TYPE_BITS),
__BPF_TYPE_LAST_FLAG = MEM_RDONLY,
/* MEM was "allocated" from a different helper, and cannot be mixed
* with regular non-MEM_ALLOC'ed MEM types.
*/
MEM_ALLOC = BIT(2 + BPF_BASE_TYPE_BITS),
__BPF_TYPE_LAST_FLAG = MEM_ALLOC,
};
/* Max number of base types. */
@ -400,7 +405,7 @@ enum bpf_return_type {
RET_PTR_TO_SOCKET_OR_NULL = PTR_MAYBE_NULL | RET_PTR_TO_SOCKET,
RET_PTR_TO_TCP_SOCK_OR_NULL = PTR_MAYBE_NULL | RET_PTR_TO_TCP_SOCK,
RET_PTR_TO_SOCK_COMMON_OR_NULL = PTR_MAYBE_NULL | RET_PTR_TO_SOCK_COMMON,
RET_PTR_TO_ALLOC_MEM_OR_NULL = PTR_MAYBE_NULL | RET_PTR_TO_ALLOC_MEM,
RET_PTR_TO_ALLOC_MEM_OR_NULL = PTR_MAYBE_NULL | MEM_ALLOC | RET_PTR_TO_ALLOC_MEM,
RET_PTR_TO_BTF_ID_OR_NULL = PTR_MAYBE_NULL | RET_PTR_TO_BTF_ID,
/* This must be the last entry. Its purpose is to ensure the enum is

2
include/linux/bpf_verifier.h
View File

@ -519,7 +519,7 @@ bpf_prog_offload_replace_insn(struct bpf_verifier_env *env, u32 off,
void
bpf_prog_offload_remove_insns(struct bpf_verifier_env *env, u32 off, u32 cnt);
int check_ctx_reg(struct bpf_verifier_env *env,
int check_ptr_off_reg(struct bpf_verifier_env *env,
const struct bpf_reg_state *reg, int regno);
int check_mem_reg(struct bpf_verifier_env *env, struct bpf_reg_state *reg,
u32 regno, u32 mem_size);

11
include/net/inet_frag.h
View File

@ -117,8 +117,15 @@ int fqdir_init(struct fqdir **fqdirp, struct inet_frags *f, struct net *net);
static inline void fqdir_pre_exit(struct fqdir *fqdir)
{
fqdir->high_thresh = 0; /* prevent creation of new frags */
fqdir->dead = true;
/* Prevent creation of new frags.
* Pairs with READ_ONCE() in inet_frag_find().
*/
WRITE_ONCE(fqdir->high_thresh, 0);
/* Pairs with READ_ONCE() in inet_frag_kill(), ip_expire()
* and ip6frag_expire_frag_queue().
*/
WRITE_ONCE(fqdir->dead, true);
}
void fqdir_exit(struct fqdir *fqdir);

3
include/net/ipv6_frag.h
View File

@ -67,7 +67,8 @@ ip6frag_expire_frag_queue(struct net *net, struct frag_queue *fq)
struct sk_buff *head;
rcu_read_lock();
if (fq->q.fqdir->dead)
/* Paired with the WRITE_ONCE() in fqdir_pre_exit(). */
if (READ_ONCE(fq->q.fqdir->dead))
goto out_rcu_unlock;
spin_lock(&fq->q.lock);

4
include/net/pkt_cls.h
View File

@ -218,8 +218,10 @@ static inline int tcf_exts_init(struct tcf_exts *exts, struct net *net,
#ifdef CONFIG_NET_CLS_ACT
exts->type = 0;
exts->nr_actions = 0;
/* Note: we do not own yet a reference on net.
* This reference might be taken later from tcf_exts_get_net().
*/
exts->net = net;
netns_tracker_alloc(net, &exts->ns_tracker, GFP_KERNEL);
exts->actions = kcalloc(TCA_ACT_MAX_PRIO, sizeof(struct tc_action *),
GFP_KERNEL);
if (!exts->actions)

5
include/net/sch_generic.h
View File

@ -1244,6 +1244,7 @@ struct psched_ratecfg {
u64 rate_bytes_ps; /* bytes per second */
u32 mult;
u16 overhead;
u16 mpu;
u8 linklayer;
u8 shift;
};
@ -1253,6 +1254,9 @@ static inline u64 psched_l2t_ns(const struct psched_ratecfg *r,
{
len += r->overhead;
if (len < r->mpu)
len = r->mpu;
if (unlikely(r->linklayer == TC_LINKLAYER_ATM))
return ((u64)(DIV_ROUND_UP(len,48)*53) * r->mult) >> r->shift;
@ -1275,6 +1279,7 @@ static inline void psched_ratecfg_getrate(struct tc_ratespec *res,
res->rate = min_t(u64, r->rate_bytes_ps, ~0U);
res->overhead = r->overhead;
res->mpu = r->mpu;
res->linklayer = (r->linklayer & TC_LINKLAYER_MASK);
}

2
kernel/bpf/btf.c
View File

@ -5686,7 +5686,7 @@ static int btf_check_func_arg_match(struct bpf_verifier_env *env,
i, btf_type_str(t));
return -EINVAL;
}
if (check_ctx_reg(env, reg, regno))
if (check_ptr_off_reg(env, reg, regno))
return -EINVAL;
} else if (is_kfunc && (reg->type == PTR_TO_BTF_ID || reg2btf_ids[reg->type])) {
const struct btf_type *reg_ref_t;

14
kernel/bpf/inode.c
View File

@ -648,12 +648,22 @@ static int bpf_parse_param(struct fs_context *fc, struct fs_parameter *param)
int opt;
opt = fs_parse(fc, bpf_fs_parameters, param, &result);
if (opt < 0)
if (opt < 0) {
/* We might like to report bad mount options here, but
* traditionally we've ignored all mount options, so we'd
* better continue to ignore non-existing options for bpf.
*/
return opt == -ENOPARAM ? 0 : opt;
if (opt == -ENOPARAM) {
opt = vfs_parse_fs_param_source(fc, param);
if (opt != -ENOPARAM)
return opt;
return 0;
}
if (opt < 0)
return opt;
}
switch (opt) {
case OPT_MODE:

79
kernel/bpf/verifier.c
View File

@ -570,6 +570,8 @@ static const char *reg_type_str(struct bpf_verifier_env *env,
if (type & MEM_RDONLY)
strncpy(prefix, "rdonly_", 16);
if (type & MEM_ALLOC)
strncpy(prefix, "alloc_", 16);
snprintf(env->type_str_buf, TYPE_STR_BUF_LEN, "%s%s%s",
prefix, str[base_type(type)], postfix);
@ -616,7 +618,7 @@ static void mark_reg_scratched(struct bpf_verifier_env *env, u32 regno)
static void mark_stack_slot_scratched(struct bpf_verifier_env *env, u32 spi)
{
env->scratched_stack_slots |= 1UL << spi;
env->scratched_stack_slots |= 1ULL << spi;
}
static bool reg_scratched(const struct bpf_verifier_env *env, u32 regno)
@ -637,14 +639,14 @@ static bool verifier_state_scratched(const struct bpf_verifier_env *env)
static void mark_verifier_state_clean(struct bpf_verifier_env *env)
{
env->scratched_regs = 0U;
env->scratched_stack_slots = 0UL;
env->scratched_stack_slots = 0ULL;
}
/* Used for printing the entire verifier state. */
static void mark_verifier_state_scratched(struct bpf_verifier_env *env)
{
env->scratched_regs = ~0U;
env->scratched_stack_slots = ~0UL;
env->scratched_stack_slots = ~0ULL;
}
/* The reg state of a pointer or a bounded scalar was saved when
@ -3969,16 +3971,17 @@ static int get_callee_stack_depth(struct bpf_verifier_env *env,
}
#endif
int check_ctx_reg(struct bpf_verifier_env *env,
const struct bpf_reg_state *reg, int regno)
static int __check_ptr_off_reg(struct bpf_verifier_env *env,
const struct bpf_reg_state *reg, int regno,
bool fixed_off_ok)
{
/* Access to ctx or passing it to a helper is only allowed in
* its original, unmodified form.
/* Access to this pointer-typed register or passing it to a helper
* is only allowed in its original, unmodified form.
*/
if (reg->off) {
verbose(env, "dereference of modified ctx ptr R%d off=%d disallowed\n",
regno, reg->off);
if (!fixed_off_ok && reg->off) {
verbose(env, "dereference of modified %s ptr R%d off=%d disallowed\n",
reg_type_str(env, reg->type), regno, reg->off);
return -EACCES;
}
@ -3986,13 +3989,20 @@ int check_ctx_reg(struct bpf_verifier_env *env,
char tn_buf[48];
tnum_strn(tn_buf, sizeof(tn_buf), reg->var_off);
verbose(env, "variable ctx access var_off=%s disallowed\n", tn_buf);
verbose(env, "variable %s access var_off=%s disallowed\n",
reg_type_str(env, reg->type), tn_buf);
return -EACCES;
}
return 0;
}
int check_ptr_off_reg(struct bpf_verifier_env *env,
const struct bpf_reg_state *reg, int regno)
{
return __check_ptr_off_reg(env, reg, regno, false);
}
static int __check_buffer_access(struct bpf_verifier_env *env,
const char *buf_info,
const struct bpf_reg_state *reg,
@ -4437,7 +4447,7 @@ static int check_mem_access(struct bpf_verifier_env *env, int insn_idx, u32 regn
return -EACCES;
}
err = check_ctx_reg(env, reg, regno);
err = check_ptr_off_reg(env, reg, regno);
if (err < 0)
return err;
@ -5127,6 +5137,7 @@ static const struct bpf_reg_types mem_types = {
PTR_TO_MAP_KEY,
PTR_TO_MAP_VALUE,
PTR_TO_MEM,
PTR_TO_MEM | MEM_ALLOC,
PTR_TO_BUF,
},
};
@ -5144,7 +5155,7 @@ static const struct bpf_reg_types int_ptr_types = {
static const struct bpf_reg_types fullsock_types = { .types = { PTR_TO_SOCKET } };
static const struct bpf_reg_types scalar_types = { .types = { SCALAR_VALUE } };
static const struct bpf_reg_types context_types = { .types = { PTR_TO_CTX } };
static const struct bpf_reg_types alloc_mem_types = { .types = { PTR_TO_MEM } };
static const struct bpf_reg_types alloc_mem_types = { .types = { PTR_TO_MEM | MEM_ALLOC } };
static const struct bpf_reg_types const_map_ptr_types = { .types = { CONST_PTR_TO_MAP } };
static const struct bpf_reg_types btf_ptr_types = { .types = { PTR_TO_BTF_ID } };
static const struct bpf_reg_types spin_lock_types = { .types = { PTR_TO_MAP_VALUE } };
@ -5244,12 +5255,6 @@ found:
kernel_type_name(btf_vmlinux, *arg_btf_id));
return -EACCES;
}
if (!tnum_is_const(reg->var_off) || reg->var_off.value) {
verbose(env, "R%d is a pointer to in-kernel struct with non-zero offset\n",
regno);
return -EACCES;
}
}
return 0;
@ -5304,10 +5309,33 @@ static int check_func_arg(struct bpf_verifier_env *env, u32 arg,
if (err)
return err;
if (type == PTR_TO_CTX) {
err = check_ctx_reg(env, reg, regno);
switch ((u32)type) {
case SCALAR_VALUE:
/* Pointer types where reg offset is explicitly allowed: */
case PTR_TO_PACKET:
case PTR_TO_PACKET_META:
case PTR_TO_MAP_KEY:
case PTR_TO_MAP_VALUE:
case PTR_TO_MEM:
case PTR_TO_MEM | MEM_RDONLY:
case PTR_TO_MEM | MEM_ALLOC:
case PTR_TO_BUF:
case PTR_TO_BUF | MEM_RDONLY:
case PTR_TO_STACK:
/* Some of the argument types nevertheless require a
* zero register offset.
*/
if (arg_type == ARG_PTR_TO_ALLOC_MEM)
goto force_off_check;
break;
/* All the rest must be rejected: */
default:
force_off_check:
err = __check_ptr_off_reg(env, reg, regno,
type == PTR_TO_BTF_ID);
if (err < 0)
return err;
break;
}
skip_type_check:
@ -9507,9 +9535,13 @@ static int check_ld_imm(struct bpf_verifier_env *env, struct bpf_insn *insn)
return 0;
}
if (insn->src_reg == BPF_PSEUDO_BTF_ID) {
/* All special src_reg cases are listed below. From this point onwards
* we either succeed and assign a corresponding dst_reg->type after
* zeroing the offset, or fail and reject the program.
*/
mark_reg_known_zero(env, regs, insn->dst_reg);
if (insn->src_reg == BPF_PSEUDO_BTF_ID) {
dst_reg->type = aux->btf_var.reg_type;
switch (base_type(dst_reg->type)) {
case PTR_TO_MEM:
@ -9547,7 +9579,6 @@ static int check_ld_imm(struct bpf_verifier_env *env, struct bpf_insn *insn)
}
map = env->used_maps[aux->map_index];
mark_reg_known_zero(env, regs, insn->dst_reg);
dst_reg->map_ptr = map;
if (insn->src_reg == BPF_PSEUDO_MAP_VALUE ||
@ -9651,7 +9682,7 @@ static int check_ld_abs(struct bpf_verifier_env *env, struct bpf_insn *insn)
return err;
}
err = check_ctx_reg(env, &regs[ctx_reg], ctx_reg);
err = check_ptr_off_reg(env, &regs[ctx_reg], ctx_reg);
if (err < 0)
return err;

5
lib/ref_tracker.c
View File

@ -69,9 +69,12 @@ int ref_tracker_alloc(struct ref_tracker_dir *dir,
unsigned long entries[REF_TRACKER_STACK_ENTRIES];
struct ref_tracker *tracker;
unsigned int nr_entries;
gfp_t gfp_mask = gfp;
unsigned long flags;
*trackerp = tracker = kzalloc(sizeof(*tracker), gfp | __GFP_NOFAIL);
if (gfp & __GFP_DIRECT_RECLAIM)
gfp_mask |= __GFP_NOFAIL;
*trackerp = tracker = kzalloc(sizeof(*tracker), gfp_mask);
if (unlikely(!tracker)) {
pr_err_once("memory allocation failure, unreliable refcount tracker.\n");
refcount_inc(&dir->untracked);

3
net/bridge/br_if.c
View File

@ -615,6 +615,7 @@ int br_add_if(struct net_bridge *br, struct net_device *dev,
err = dev_set_allmulti(dev, 1);
if (err) {
br_multicast_del_port(p);
dev_put_track(dev, &p->dev_tracker);
kfree(p); /* kobject not yet init'd, manually free */
goto err1;
}
@ -724,10 +725,10 @@ err3:
sysfs_remove_link(br->ifobj, p->dev->name);
err2:
br_multicast_del_port(p);
dev_put_track(dev, &p->dev_tracker);
kobject_put(&p->kobj);
dev_set_allmulti(dev, -1);
err1:
dev_put(dev);
return err;
}

6
net/core/dev.c
View File

@ -8981,6 +8981,12 @@ static int bpf_xdp_link_update(struct bpf_link *link, struct bpf_prog *new_prog,
goto out_unlock;
}
old_prog = link->prog;
if (old_prog->type != new_prog->type ||
old_prog->expected_attach_type != new_prog->expected_attach_type) {
err = -EINVAL;
goto out_unlock;
}
if (old_prog == new_prog) {
/* no-op, don't disturb drivers */
bpf_prog_put(new_prog);

4
net/core/net_namespace.c
View File

@ -164,8 +164,10 @@ static void ops_exit_list(const struct pernet_operations *ops,
{
struct net *net;
if (ops->exit) {
list_for_each_entry(net, net_exit_list, exit_list)
list_for_each_entry(net, net_exit_list, exit_list) {
ops->exit(net);
cond_resched();
}
}
if (ops->exit_batch)
ops->exit_batch(net_exit_list);

31
net/core/of_net.c
View File

@ -61,7 +61,7 @@ static int of_get_mac_addr_nvmem(struct device_node *np, u8 *addr)
{
struct platform_device *pdev = of_find_device_by_node(np);
struct nvmem_cell *cell;
const void *buf;
const void *mac;
size_t len;
int ret;
@ -78,32 +78,21 @@ static int of_get_mac_addr_nvmem(struct device_node *np, u8 *addr)
if (IS_ERR(cell))
return PTR_ERR(cell);
buf = nvmem_cell_read(cell, &len);
mac = nvmem_cell_read(cell, &len);
nvmem_cell_put(cell);
if (IS_ERR(buf))
return PTR_ERR(buf);
if (IS_ERR(mac))
return PTR_ERR(mac);
ret = 0;
if (len == ETH_ALEN) {
if (is_valid_ether_addr(buf))
memcpy(addr, buf, ETH_ALEN);
else
ret = -EINVAL;
} else if (len == 3 * ETH_ALEN - 1) {
u8 mac[ETH_ALEN];
if (mac_pton(buf, mac))
memcpy(addr, mac, ETH_ALEN);
else
ret = -EINVAL;
} else {
ret = -EINVAL;
if (len != ETH_ALEN || !is_valid_ether_addr(mac)) {
kfree(mac);
return -EINVAL;
}
kfree(buf);
memcpy(addr, mac, ETH_ALEN);
kfree(mac);
return ret;
return 0;
}
/**

5
net/core/sock.c
View File

@ -844,6 +844,8 @@ static int sock_timestamping_bind_phc(struct sock *sk, int phc_index)
}
num = ethtool_get_phc_vclocks(dev, &vclock_index);
dev_put(dev);
for (i = 0; i < num; i++) {
if (*(vclock_index + i) == phc_index) {
match = true;
@ -2047,6 +2049,9 @@ void sk_destruct(struct sock *sk)
{
bool use_call_rcu = sock_flag(sk, SOCK_RCU_FREE);
WARN_ON_ONCE(!llist_empty(&sk->defer_list));
sk_defer_free_flush(sk);
if (rcu_access_pointer(sk->sk_reuseport_cb)) {
reuseport_detach_sock(sk);
use_call_rcu = true;

76
net/ipv4/fib_semantics.c
View File

@ -29,6 +29,7 @@
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/netlink.h>
#include <linux/hash.h>
#include <net/arp.h>
#include <net/ip.h>
@ -51,6 +52,7 @@ static DEFINE_SPINLOCK(fib_info_lock);
static struct hlist_head *fib_info_hash;
static struct hlist_head *fib_info_laddrhash;
static unsigned int fib_info_hash_size;
static unsigned int fib_info_hash_bits;
static unsigned int fib_info_cnt;
#define DEVINDEX_HASHBITS 8
@ -249,7 +251,6 @@ void free_fib_info(struct fib_info *fi)
pr_warn("Freeing alive fib_info %p\n", fi);
return;
}
fib_info_cnt--;
call_rcu(&fi->rcu, free_fib_info_rcu);
}
@ -260,6 +261,10 @@ void fib_release_info(struct fib_info *fi)
spin_lock_bh(&fib_info_lock);
if (fi && refcount_dec_and_test(&fi->fib_treeref)) {
hlist_del(&fi->fib_hash);
/* Paired with READ_ONCE() in fib_create_info(). */
WRITE_ONCE(fib_info_cnt, fib_info_cnt - 1);
if (fi->fib_prefsrc)
hlist_del(&fi->fib_lhash);
if (fi->nh) {
@ -316,11 +321,15 @@ static inline int nh_comp(struct fib_info *fi, struct fib_info *ofi)
static inline unsigned int fib_devindex_hashfn(unsigned int val)
{
unsigned int mask = DEVINDEX_HASHSIZE - 1;
return hash_32(val, DEVINDEX_HASHBITS);
}
return (val ^
(val >> DEVINDEX_HASHBITS) ^
(val >> (DEVINDEX_HASHBITS * 2))) & mask;
static struct hlist_head *
fib_info_devhash_bucket(const struct net_device *dev)
{
u32 val = net_hash_mix(dev_net(dev)) ^ dev->ifindex;
return &fib_info_devhash[fib_devindex_hashfn(val)];
}
static unsigned int fib_info_hashfn_1(int init_val, u8 protocol, u8 scope,
@ -430,12 +439,11 @@ int ip_fib_check_default(__be32 gw, struct net_device *dev)
{
struct hlist_head *head;
struct fib_nh *nh;
unsigned int hash;
spin_lock(&fib_info_lock);
hash = fib_devindex_hashfn(dev->ifindex);
head = &fib_info_devhash[hash];
head = fib_info_devhash_bucket(dev);
hlist_for_each_entry(nh, head, nh_hash) {
if (nh->fib_nh_dev == dev &&
nh->fib_nh_gw4 == gw &&
@ -1240,13 +1248,13 @@ int fib_check_nh(struct net *net, struct fib_nh *nh, u32 table, u8 scope,
return err;
}
static inline unsigned int fib_laddr_hashfn(__be32 val)
static struct hlist_head *
fib_info_laddrhash_bucket(const struct net *net, __be32 val)
{
unsigned int mask = (fib_info_hash_size - 1);
u32 slot = hash_32(net_hash_mix(net) ^ (__force u32)val,
fib_info_hash_bits);
return ((__force u32)val ^
((__force u32)val >> 7) ^
((__force u32)val >> 14)) & mask;
return &fib_info_laddrhash[slot];
}
static struct hlist_head *fib_info_hash_alloc(int bytes)
@ -1282,6 +1290,7 @@ static void fib_info_hash_move(struct hlist_head *new_info_hash,
old_info_hash = fib_info_hash;
old_laddrhash = fib_info_laddrhash;
fib_info_hash_size = new_size;
fib_info_hash_bits = ilog2(new_size);
for (i = 0; i < old_size; i++) {
struct hlist_head *head = &fib_info_hash[i];
@ -1299,21 +1308,20 @@ static void fib_info_hash_move(struct hlist_head *new_info_hash,
}
fib_info_hash = new_info_hash;
fib_info_laddrhash = new_laddrhash;
for (i = 0; i < old_size; i++) {
struct hlist_head *lhead = &fib_info_laddrhash[i];
struct hlist_head *lhead = &old_laddrhash[i];
struct hlist_node *n;
struct fib_info *fi;
hlist_for_each_entry_safe(fi, n, lhead, fib_lhash) {
struct hlist_head *ldest;
unsigned int new_hash;
new_hash = fib_laddr_hashfn(fi->fib_prefsrc);
ldest = &new_laddrhash[new_hash];
ldest = fib_info_laddrhash_bucket(fi->fib_net,
fi->fib_prefsrc);
hlist_add_head(&fi->fib_lhash, ldest);
}
}
fib_info_laddrhash = new_laddrhash;
spin_unlock_bh(&fib_info_lock);
@ -1430,7 +1438,9 @@ struct fib_info *fib_create_info(struct fib_config *cfg,
#endif
err = -ENOBUFS;
if (fib_info_cnt >= fib_info_hash_size) {
/* Paired with WRITE_ONCE() in fib_release_info() */
if (READ_ONCE(fib_info_cnt) >= fib_info_hash_size) {
unsigned int new_size = fib_info_hash_size << 1;
struct hlist_head *new_info_hash;
struct hlist_head *new_laddrhash;
@ -1462,7 +1472,6 @@ struct fib_info *fib_create_info(struct fib_config *cfg,
return ERR_PTR(err);
}
fib_info_cnt++;
fi->fib_net = net;
fi->fib_protocol = cfg->fc_protocol;
fi->fib_scope = cfg->fc_scope;
@ -1591,12 +1600,13 @@ link_it:
refcount_set(&fi->fib_treeref, 1);
refcount_set(&fi->fib_clntref, 1);
spin_lock_bh(&fib_info_lock);
fib_info_cnt++;
hlist_add_head(&fi->fib_hash,
&fib_info_hash[fib_info_hashfn(fi)]);
if (fi->fib_prefsrc) {
struct hlist_head *head;
head = &fib_info_laddrhash[fib_laddr_hashfn(fi->fib_prefsrc)];
head = fib_info_laddrhash_bucket(net, fi->fib_prefsrc);
hlist_add_head(&fi->fib_lhash, head);
}
if (fi->nh) {
@ -1604,12 +1614,10 @@ link_it:
} else {
change_nexthops(fi) {
struct hlist_head *head;
unsigned int hash;
if (!nexthop_nh->fib_nh_dev)
continue;
hash = fib_devindex_hashfn(nexthop_nh->fib_nh_dev->ifindex);
head = &fib_info_devhash[hash];
head = fib_info_devhash_bucket(nexthop_nh->fib_nh_dev);
hlist_add_head(&nexthop_nh->nh_hash, head);
} endfor_nexthops(fi)
}
@ -1870,16 +1878,16 @@ nla_put_failure:
*/
int fib_sync_down_addr(struct net_device *dev, __be32 local)
{
int ret = 0;
unsigned int hash = fib_laddr_hashfn(local);
struct hlist_head *head = &fib_info_laddrhash[hash];
int tb_id = l3mdev_fib_table(dev) ? : RT_TABLE_MAIN;
struct net *net = dev_net(dev);
struct hlist_head *head;
struct fib_info *fi;
int ret = 0;
if (!fib_info_laddrhash || local == 0)
return 0;
head = fib_info_laddrhash_bucket(net, local);
hlist_for_each_entry(fi, head, fib_lhash) {
if (!net_eq(fi->fib_net, net) ||
fi->fib_tb_id != tb_id)
@ -1961,8 +1969,7 @@ void fib_nhc_update_mtu(struct fib_nh_common *nhc, u32 new, u32 orig)
void fib_sync_mtu(struct net_device *dev, u32 orig_mtu)
{
unsigned int hash = fib_devindex_hashfn(dev->ifindex);
struct hlist_head *head = &fib_info_devhash[hash];
struct hlist_head *head = fib_info_devhash_bucket(dev);
struct fib_nh *nh;
hlist_for_each_entry(nh, head, nh_hash) {
@ -1981,12 +1988,11 @@ void fib_sync_mtu(struct net_device *dev, u32 orig_mtu)
*/
int fib_sync_down_dev(struct net_device *dev, unsigned long event, bool force)
{
int ret = 0;
int scope = RT_SCOPE_NOWHERE;
struct hlist_head *head = fib_info_devhash_bucket(dev);
struct fib_info *prev_fi = NULL;
unsigned int hash = fib_devindex_hashfn(dev->ifindex);
struct hlist_head *head = &fib_info_devhash[hash];
int scope = RT_SCOPE_NOWHERE;
struct fib_nh *nh;
int ret = 0;
if (force)
scope = -1;
@ -2131,7 +2137,6 @@ out:
int fib_sync_up(struct net_device *dev, unsigned char nh_flags)
{
struct fib_info *prev_fi;
unsigned int hash;
struct hlist_head *head;
struct fib_nh *nh;
int ret;
@ -2147,8 +2152,7 @@ int fib_sync_up(struct net_device *dev, unsigned char nh_flags)
}
prev_fi = NULL;
hash = fib_devindex_hashfn(dev->ifindex);
head = &fib_info_devhash[hash];
head = fib_info_devhash_bucket(dev);
ret = 0;
hlist_for_each_entry(nh, head, nh_hash) {

8
net/ipv4/inet_fragment.c
View File

@ -235,9 +235,9 @@ void inet_frag_kill(struct inet_frag_queue *fq)
/* The RCU read lock provides a memory barrier
* guaranteeing that if fqdir->dead is false then
* the hash table destruction will not start until
* after we unlock. Paired with inet_frags_exit_net().
* after we unlock. Paired with fqdir_pre_exit().
*/
if (!fqdir->dead) {
if (!READ_ONCE(fqdir->dead)) {
rhashtable_remove_fast(&fqdir->rhashtable, &fq->node,
fqdir->f->rhash_params);
refcount_dec(&fq->refcnt);
@ -352,9 +352,11 @@ static struct inet_frag_queue *inet_frag_create(struct fqdir *fqdir,
/* TODO : call from rcu_read_lock() and no longer use refcount_inc_not_zero() */
struct inet_frag_queue *inet_frag_find(struct fqdir *fqdir, void *key)
{
/* This pairs with WRITE_ONCE() in fqdir_pre_exit(). */
long high_thresh = READ_ONCE(fqdir->high_thresh);
struct inet_frag_queue *fq = NULL, *prev;
if (!fqdir->high_thresh || frag_mem_limit(fqdir) > fqdir->high_thresh)
if (!high_thresh || frag_mem_limit(fqdir) > high_thresh)
return NULL;
rcu_read_lock();

3
net/ipv4/ip_fragment.c
View File

@ -144,7 +144,8 @@ static void ip_expire(struct timer_list *t)
rcu_read_lock();
if (qp->q.fqdir->dead)
/* Paired with WRITE_ONCE() in fqdir_pre_exit(). */
if (READ_ONCE(qp->q.fqdir->dead))
goto out_rcu_unlock;
spin_lock(&qp->q.lock);

5
net/ipv4/ip_gre.c
View File

@ -604,8 +604,9 @@ static int gre_fill_metadata_dst(struct net_device *dev, struct sk_buff *skb)
key = &info->key;
ip_tunnel_init_flow(&fl4, IPPROTO_GRE, key->u.ipv4.dst, key->u.ipv4.src,
tunnel_id_to_key32(key->tun_id), key->tos, 0,
skb->mark, skb_get_hash(skb));
tunnel_id_to_key32(key->tun_id),
key->tos & ~INET_ECN_MASK, 0, skb->mark,
skb_get_hash(skb));
rt = ip_route_output_key(dev_net(dev), &fl4);
if (IS_ERR(rt))
return PTR_ERR(rt);

2
net/ipv6/sit.c
View File

@ -956,7 +956,7 @@ static netdev_tx_t ipip6_tunnel_xmit(struct sk_buff *skb,
dst_cache_set_ip4(&tunnel->dst_cache, &rt->dst, fl4.saddr);
}
if (rt->rt_type != RTN_UNICAST) {
if (rt->rt_type != RTN_UNICAST && rt->rt_type != RTN_LOCAL) {
ip_rt_put(rt);
dev->stats.tx_carrier_errors++;
goto tx_error_icmp;

2
net/mctp/test/route-test.c
View File

@ -285,7 +285,7 @@ static void __mctp_route_test_init(struct kunit *test,
struct mctp_test_route **rtp,
struct socket **sockp)
{
struct sockaddr_mctp addr;
struct sockaddr_mctp addr = {0};
struct mctp_test_route *rt;
struct mctp_test_dev *dev;
struct socket *sock;

2
net/netfilter/nft_connlimit.c
View File

@ -206,7 +206,7 @@ static int nft_connlimit_clone(struct nft_expr *dst, const struct nft_expr *src)
struct nft_connlimit *priv_src = nft_expr_priv(src);
priv_dst->list = kmalloc(sizeof(*priv_dst->list), GFP_ATOMIC);
if (priv_dst->list)
if (!priv_dst->list)
return -ENOMEM;
nf_conncount_list_init(priv_dst->list);

2
net/netfilter/nft_last.c
View File

@ -106,7 +106,7 @@ static int nft_last_clone(struct nft_expr *dst, const struct nft_expr *src)
struct nft_last_priv *priv_dst = nft_expr_priv(dst);
priv_dst->last = kzalloc(sizeof(*priv_dst->last), GFP_ATOMIC);
if (priv_dst->last)
if (!priv_dst->last)
return -ENOMEM;
return 0;

2
net/netfilter/nft_limit.c
View File

@ -145,7 +145,7 @@ static int nft_limit_clone(struct nft_limit_priv *priv_dst,
priv_dst->invert = priv_src->invert;
priv_dst->limit = kmalloc(sizeof(*priv_dst->limit), GFP_ATOMIC);
if (priv_dst->limit)
if (!priv_dst->limit)
return -ENOMEM;
spin_lock_init(&priv_dst->limit->lock);

2
net/netfilter/nft_quota.c
View File

@ -237,7 +237,7 @@ static int nft_quota_clone(struct nft_expr *dst, const struct nft_expr *src)
struct nft_quota *priv_dst = nft_expr_priv(dst);
priv_dst->consumed = kmalloc(sizeof(*priv_dst->consumed), GFP_ATOMIC);
if (priv_dst->consumed)
if (!priv_dst->consumed)
return -ENOMEM;
atomic64_set(priv_dst->consumed, 0);

5
net/nfc/llcp_sock.c
View File

@ -789,6 +789,11 @@ static int llcp_sock_sendmsg(struct socket *sock, struct msghdr *msg,
lock_sock(sk);
if (!llcp_sock->local) {
release_sock(sk);
return -ENODEV;
}
if (sk->sk_type == SOCK_DGRAM) {
DECLARE_SOCKADDR(struct sockaddr_nfc_llcp *, addr,
msg->msg_name);

2
net/sched/sch_api.c
View File

@ -1062,7 +1062,7 @@ static int qdisc_graft(struct net_device *dev, struct Qdisc *parent,
qdisc_offload_graft_root(dev, new, old, extack);
if (new && new->ops->attach)
if (new && new->ops->attach && !ingress)
goto skip;
for (i = 0; i < num_q; i++) {

1
net/sched/sch_generic.c
View File

@ -1529,6 +1529,7 @@ void psched_ratecfg_precompute(struct psched_ratecfg *r,
{
memset(r, 0, sizeof(*r));
r->overhead = conf->overhead;
r->mpu = conf->mpu;
r->rate_bytes_ps = max_t(u64, conf->rate, rate64);
r->linklayer = (conf->linklayer & TC_LINKLAYER_MASK);
psched_ratecfg_precompute__(r->rate_bytes_ps, &r->mult, &r->shift);

6
net/smc/af_smc.c
View File

@ -634,9 +634,13 @@ static void smc_conn_abort(struct smc_sock *smc, int local_first)
{
struct smc_connection *conn = &smc->conn;
struct smc_link_group *lgr = conn->lgr;
bool lgr_valid = false;
if (smc_conn_lgr_valid(conn))
lgr_valid = true;
smc_conn_free(conn);
if (local_first)
if (local_first && lgr_valid)
smc_lgr_cleanup_early(lgr);
}

1
net/smc/smc.h
View File

@ -221,6 +221,7 @@ struct smc_connection {
*/
u64 peer_token; /* SMC-D token of peer */
u8 killed : 1; /* abnormal termination */
u8 freed : 1; /* normal termiation */
u8 out_of_sync : 1; /* out of sync with peer */
};

3
net/smc/smc_cdc.c
View File

@ -197,7 +197,8 @@ int smc_cdc_get_slot_and_msg_send(struct smc_connection *conn)
{
int rc;
if (!conn->lgr || (conn->lgr->is_smcd && conn->lgr->peer_shutdown))
if (!smc_conn_lgr_valid(conn) ||
(conn->lgr->is_smcd && conn->lgr->peer_shutdown))
return -EPIPE;
if (conn->lgr->is_smcd) {

2
net/smc/smc_clc.c
View File

@ -774,7 +774,7 @@ int smc_clc_send_decline(struct smc_sock *smc, u32 peer_diag_info, u8 version)
dclc.os_type = version == SMC_V1 ? 0 : SMC_CLC_OS_LINUX;
dclc.hdr.typev2 = (peer_diag_info == SMC_CLC_DECL_SYNCERR) ?
SMC_FIRST_CONTACT_MASK : 0;
if ((!smc->conn.lgr || !smc->conn.lgr->is_smcd) &&
if ((!smc_conn_lgr_valid(&smc->conn) || !smc->conn.lgr->is_smcd) &&
smc_ib_is_valid_local_systemid())
memcpy(dclc.id_for_peer, local_systemid,
sizeof(local_systemid));

139
net/smc/smc_core.c
View File

@ -211,14 +211,13 @@ static void smc_lgr_unregister_conn(struct smc_connection *conn)
{
struct smc_link_group *lgr = conn->lgr;
if (!lgr)
if (!smc_conn_lgr_valid(conn))
return;
write_lock_bh(&lgr->conns_lock);
if (conn->alert_token_local) {
__smc_lgr_unregister_conn(conn);
}
write_unlock_bh(&lgr->conns_lock);
conn->lgr = NULL;
}
int smc_nl_get_sys_info(struct sk_buff *skb, struct netlink_callback *cb)
@ -749,9 +748,12 @@ int smcr_link_init(struct smc_link_group *lgr, struct smc_link *lnk,
}
get_device(&lnk->smcibdev->ibdev->dev);
atomic_inc(&lnk->smcibdev->lnk_cnt);
refcount_set(&lnk->refcnt, 1); /* link refcnt is set to 1 */
lnk->clearing = 0;
lnk->path_mtu = lnk->smcibdev->pattr[lnk->ibport - 1].active_mtu;
lnk->link_id = smcr_next_link_id(lgr);
lnk->lgr = lgr;
smc_lgr_hold(lgr); /* lgr_put in smcr_link_clear() */
lnk->link_idx = link_idx;
smc_ibdev_cnt_inc(lnk);
smcr_copy_dev_info_to_link(lnk);
@ -806,6 +808,7 @@ out:
lnk->state = SMC_LNK_UNUSED;
if (!atomic_dec_return(&smcibdev->lnk_cnt))
wake_up(&smcibdev->lnks_deleted);
smc_lgr_put(lgr); /* lgr_hold above */
return rc;
}
@ -844,6 +847,7 @@ static int smc_lgr_create(struct smc_sock *smc, struct smc_init_info *ini)
lgr->terminating = 0;
lgr->freeing = 0;
lgr->vlan_id = ini->vlan_id;
refcount_set(&lgr->refcnt, 1); /* set lgr refcnt to 1 */
mutex_init(&lgr->sndbufs_lock);
mutex_init(&lgr->rmbs_lock);
rwlock_init(&lgr->conns_lock);
@ -996,8 +1000,12 @@ void smc_switch_link_and_count(struct smc_connection *conn,
struct smc_link *to_lnk)
{
atomic_dec(&conn->lnk->conn_cnt);
/* link_hold in smc_conn_create() */
smcr_link_put(conn->lnk);
conn->lnk = to_lnk;
atomic_inc(&conn->lnk->conn_cnt);
/* link_put in smc_conn_free() */
smcr_link_hold(conn->lnk);
}
struct smc_link *smc_switch_conns(struct smc_link_group *lgr,
@ -1130,8 +1138,19 @@ void smc_conn_free(struct smc_connection *conn)
{
struct smc_link_group *lgr = conn->lgr;
if (!lgr)
if (!lgr || conn->freed)
/* Connection has never been registered in a
* link group, or has already been freed.
*/
return;
conn->freed = 1;
if (!smc_conn_lgr_valid(conn))
/* Connection has already unregistered from
* link group.
*/
goto lgr_put;
if (lgr->is_smcd) {
if (!list_empty(&lgr->list))
smc_ism_unset_conn(conn);
@ -1148,6 +1167,10 @@ void smc_conn_free(struct smc_connection *conn)
if (!lgr->conns_num)
smc_lgr_schedule_free_work(lgr);
lgr_put:
if (!lgr->is_smcd)
smcr_link_put(conn->lnk); /* link_hold in smc_conn_create() */
smc_lgr_put(lgr); /* lgr_hold in smc_conn_create() */
}
/* unregister a link from a buf_desc */
@ -1203,21 +1226,11 @@ static void smcr_rtoken_clear_link(struct smc_link *lnk)
}
}
/* must be called under lgr->llc_conf_mutex lock */
void smcr_link_clear(struct smc_link *lnk, bool log)
static void __smcr_link_clear(struct smc_link *lnk)
{
struct smc_link_group *lgr = lnk->lgr;
struct smc_ib_device *smcibdev;
if (!lnk->lgr || lnk->state == SMC_LNK_UNUSED)
return;
lnk->peer_qpn = 0;
smc_llc_link_clear(lnk, log);
smcr_buf_unmap_lgr(lnk);
smcr_rtoken_clear_link(lnk);
smc_ib_modify_qp_error(lnk);
smc_wr_free_link(lnk);
smc_ib_destroy_queue_pair(lnk);
smc_ib_dealloc_protection_domain(lnk);
smc_wr_free_link_mem(lnk);
smc_ibdev_cnt_dec(lnk);
put_device(&lnk->smcibdev->ibdev->dev);
@ -1226,6 +1239,36 @@ void smcr_link_clear(struct smc_link *lnk, bool log)
lnk->state = SMC_LNK_UNUSED;
if (!atomic_dec_return(&smcibdev->lnk_cnt))
wake_up(&smcibdev->lnks_deleted);
smc_lgr_put(lgr); /* lgr_hold in smcr_link_init() */
}
/* must be called under lgr->llc_conf_mutex lock */
void smcr_link_clear(struct smc_link *lnk, bool log)
{
if (!lnk->lgr || lnk->clearing ||
lnk->state == SMC_LNK_UNUSED)
return;
lnk->clearing = 1;
lnk->peer_qpn = 0;
smc_llc_link_clear(lnk, log);
smcr_buf_unmap_lgr(lnk);
smcr_rtoken_clear_link(lnk);
smc_ib_modify_qp_error(lnk);
smc_wr_free_link(lnk);
smc_ib_destroy_queue_pair(lnk);
smc_ib_dealloc_protection_domain(lnk);
smcr_link_put(lnk); /* theoretically last link_put */
}
void smcr_link_hold(struct smc_link *lnk)
{
refcount_inc(&lnk->refcnt);
}
void smcr_link_put(struct smc_link *lnk)
{
if (refcount_dec_and_test(&lnk->refcnt))
__smcr_link_clear(lnk);
}
static void smcr_buf_free(struct smc_link_group *lgr, bool is_rmb,
@ -1290,6 +1333,21 @@ static void smc_lgr_free_bufs(struct smc_link_group *lgr)
__smc_lgr_free_bufs(lgr, true);
}
/* won't be freed until no one accesses to lgr anymore */
static void __smc_lgr_free(struct smc_link_group *lgr)
{
smc_lgr_free_bufs(lgr);
if (lgr->is_smcd) {
if (!atomic_dec_return(&lgr->smcd->lgr_cnt))
wake_up(&lgr->smcd->lgrs_deleted);
} else {
smc_wr_free_lgr_mem(lgr);
if (!atomic_dec_return(&lgr_cnt))
wake_up(&lgrs_deleted);
}
kfree(lgr);
}
/* remove a link group */
static void smc_lgr_free(struct smc_link_group *lgr)
{
@ -1305,19 +1363,23 @@ static void smc_lgr_free(struct smc_link_group *lgr)
smc_llc_lgr_clear(lgr);
}
smc_lgr_free_bufs(lgr);
destroy_workqueue(lgr->tx_wq);
if (lgr->is_smcd) {
smc_ism_put_vlan(lgr->smcd, lgr->vlan_id);
put_device(&lgr->smcd->dev);
if (!atomic_dec_return(&lgr->smcd->lgr_cnt))
wake_up(&lgr->smcd->lgrs_deleted);
} else {
smc_wr_free_lgr_mem(lgr);
if (!atomic_dec_return(&lgr_cnt))
wake_up(&lgrs_deleted);
}
kfree(lgr);
smc_lgr_put(lgr); /* theoretically last lgr_put */
}
void smc_lgr_hold(struct smc_link_group *lgr)
{
refcount_inc(&lgr->refcnt);
}
void smc_lgr_put(struct smc_link_group *lgr)
{
if (refcount_dec_and_test(&lgr->refcnt))
__smc_lgr_free(lgr);
}
static void smc_sk_wake_ups(struct smc_sock *smc)
@ -1469,16 +1531,11 @@ void smc_smcd_terminate_all(struct smcd_dev *smcd)
/* Called when an SMCR device is removed or the smc module is unloaded.
* If smcibdev is given, all SMCR link groups using this device are terminated.
* If smcibdev is NULL, all SMCR link groups are terminated.
*
* We must wait here for QPs been destroyed before we destroy the CQs,
* or we won't received any CQEs and cdc_pend_tx_wr cannot reach 0 thus
* smc_sock cannot be released.
*/
void smc_smcr_terminate_all(struct smc_ib_device *smcibdev)
{
struct smc_link_group *lgr, *lg;
LIST_HEAD(lgr_free_list);
LIST_HEAD(lgr_linkdown_list);
int i;
spin_lock_bh(&smc_lgr_list.lock);
@ -1490,7 +1547,7 @@ void smc_smcr_terminate_all(struct smc_ib_device *smcibdev)
list_for_each_entry_safe(lgr, lg, &smc_lgr_list.list, list) {
for (i = 0; i < SMC_LINKS_PER_LGR_MAX; i++) {
if (lgr->lnk[i].smcibdev == smcibdev)
list_move_tail(&lgr->list, &lgr_linkdown_list);
smcr_link_down_cond_sched(&lgr->lnk[i]);
}
}
}
@ -1502,16 +1559,6 @@ void smc_smcr_terminate_all(struct smc_ib_device *smcibdev)
__smc_lgr_terminate(lgr, false);
}
list_for_each_entry_safe(lgr, lg, &lgr_linkdown_list, list) {
for (i = 0; i < SMC_LINKS_PER_LGR_MAX; i++) {
if (lgr->lnk[i].smcibdev == smcibdev) {
mutex_lock(&lgr->llc_conf_mutex);
smcr_link_down_cond(&lgr->lnk[i]);
mutex_unlock(&lgr->llc_conf_mutex);
}
}
}
if (smcibdev) {
if (atomic_read(&smcibdev->lnk_cnt))
wait_event(smcibdev->lnks_deleted,
@ -1856,6 +1903,10 @@ create:
goto out;
}
}
smc_lgr_hold(conn->lgr); /* lgr_put in smc_conn_free() */
if (!conn->lgr->is_smcd)
smcr_link_hold(conn->lnk); /* link_put in smc_conn_free() */
conn->freed = 0;
conn->local_tx_ctrl.common.type = SMC_CDC_MSG_TYPE;
conn->local_tx_ctrl.len = SMC_WR_TX_SIZE;
conn->urg_state = SMC_URG_READ;
@ -2240,14 +2291,16 @@ static int __smc_buf_create(struct smc_sock *smc, bool is_smcd, bool is_rmb)
void smc_sndbuf_sync_sg_for_cpu(struct smc_connection *conn)
{
if (!conn->lgr || conn->lgr->is_smcd || !smc_link_active(conn->lnk))
if (!smc_conn_lgr_valid(conn) || conn->lgr->is_smcd ||
!smc_link_active(conn->lnk))
return;
smc_ib_sync_sg_for_cpu(conn->lnk, conn->sndbuf_desc, DMA_TO_DEVICE);
}
void smc_sndbuf_sync_sg_for_device(struct smc_connection *conn)
{
if (!conn->lgr || conn->lgr->is_smcd || !smc_link_active(conn->lnk))
if (!smc_conn_lgr_valid(conn) || conn->lgr->is_smcd ||
!smc_link_active(conn->lnk))
return;
smc_ib_sync_sg_for_device(conn->lnk, conn->sndbuf_desc, DMA_TO_DEVICE);
}
@ -2256,7 +2309,7 @@ void smc_rmb_sync_sg_for_cpu(struct smc_connection *conn)
{
int i;
if (!conn->lgr || conn->lgr->is_smcd)
if (!smc_conn_lgr_valid(conn) || conn->lgr->is_smcd)
return;
for (i = 0; i < SMC_LINKS_PER_LGR_MAX; i++) {
if (!smc_link_active(&conn->lgr->lnk[i]))
@ -2270,7 +2323,7 @@ void smc_rmb_sync_sg_for_device(struct smc_connection *conn)
{
int i;
if (!conn->lgr || conn->lgr->is_smcd)
if (!smc_conn_lgr_valid(conn) || conn->lgr->is_smcd)
return;
for (i = 0; i < SMC_LINKS_PER_LGR_MAX; i++) {
if (!smc_link_active(&conn->lgr->lnk[i]))

12
net/smc/smc_core.h
View File

@ -137,6 +137,8 @@ struct smc_link {
u8 peer_link_uid[SMC_LGR_ID_SIZE]; /* peer uid */
u8 link_idx; /* index in lgr link array */
u8 link_is_asym; /* is link asymmetric? */
u8 clearing : 1; /* link is being cleared */
refcount_t refcnt; /* link reference count */
struct smc_link_group *lgr; /* parent link group */
struct work_struct link_down_wrk; /* wrk to bring link down */
char ibname[IB_DEVICE_NAME_MAX]; /* ib device name */
@ -249,6 +251,7 @@ struct smc_link_group {
u8 terminating : 1;/* lgr is terminating */
u8 freeing : 1; /* lgr is being freed */
refcount_t refcnt; /* lgr reference count */
bool is_smcd; /* SMC-R or SMC-D */
u8 smc_version;
u8 negotiated_eid[SMC_MAX_EID_LEN];
@ -409,6 +412,11 @@ static inline struct smc_connection *smc_lgr_find_conn(
return res;
}
static inline bool smc_conn_lgr_valid(struct smc_connection *conn)
{
return conn->lgr && conn->alert_token_local;
}
/*
* Returns true if the specified link is usable.
*
@ -487,6 +495,8 @@ struct smc_clc_msg_accept_confirm;
void smc_lgr_cleanup_early(struct smc_link_group *lgr);
void smc_lgr_terminate_sched(struct smc_link_group *lgr);
void smc_lgr_hold(struct smc_link_group *lgr);
void smc_lgr_put(struct smc_link_group *lgr);
void smcr_port_add(struct smc_ib_device *smcibdev, u8 ibport);
void smcr_port_err(struct smc_ib_device *smcibdev, u8 ibport);
void smc_smcd_terminate(struct smcd_dev *dev, u64 peer_gid,
@ -518,6 +528,8 @@ void smc_core_exit(void);
int smcr_link_init(struct smc_link_group *lgr, struct smc_link *lnk,
u8 link_idx, struct smc_init_info *ini);
void smcr_link_clear(struct smc_link *lnk, bool log);
void smcr_link_hold(struct smc_link *lnk);
void smcr_link_put(struct smc_link *lnk);
void smc_switch_link_and_count(struct smc_connection *conn,
struct smc_link *to_lnk);
int smcr_buf_map_lgr(struct smc_link *lnk);

6
net/smc/smc_diag.c
View File

@ -89,7 +89,7 @@ static int __smc_diag_dump(struct sock *sk, struct sk_buff *skb,
r->diag_state = sk->sk_state;
if (smc->use_fallback)
r->diag_mode = SMC_DIAG_MODE_FALLBACK_TCP;
else if (smc->conn.lgr && smc->conn.lgr->is_smcd)
else if (smc_conn_lgr_valid(&smc->conn) && smc->conn.lgr->is_smcd)
r->diag_mode = SMC_DIAG_MODE_SMCD;
else
r->diag_mode = SMC_DIAG_MODE_SMCR;
@ -142,7 +142,7 @@ static int __smc_diag_dump(struct sock *sk, struct sk_buff *skb,
goto errout;
}
if (smc->conn.lgr && !smc->conn.lgr->is_smcd &&
if (smc_conn_lgr_valid(&smc->conn) && !smc->conn.lgr->is_smcd &&
(req->diag_ext & (1 << (SMC_DIAG_LGRINFO - 1))) &&
!list_empty(&smc->conn.lgr->list)) {
struct smc_link *link = smc->conn.lnk;
@ -164,7 +164,7 @@ static int __smc_diag_dump(struct sock *sk, struct sk_buff *skb,
if (nla_put(skb, SMC_DIAG_LGRINFO, sizeof(linfo), &linfo) < 0)
goto errout;
}
if (smc->conn.lgr && smc->conn.lgr->is_smcd &&
if (smc_conn_lgr_valid(&smc->conn) && smc->conn.lgr->is_smcd &&
(req->diag_ext & (1 << (SMC_DIAG_DMBINFO - 1))) &&
!list_empty(&smc->conn.lgr->list)) {
struct smc_connection *conn = &smc->conn;

1
net/smc/smc_pnet.c
View File

@ -369,6 +369,7 @@ static int smc_pnet_add_eth(struct smc_pnettable *pnettable, struct net *net,
memcpy(new_pe->pnet_name, pnet_name, SMC_MAX_PNETID_LEN);
strncpy(new_pe->eth_name, eth_name, IFNAMSIZ);
new_pe->ndev = ndev;
if (ndev)
netdev_tracker_alloc(ndev, &new_pe->dev_tracker, GFP_KERNEL);
rc = -EEXIST;
new_netdev = true;

4
net/smc/smc_wr.h
View File

@ -125,10 +125,6 @@ int smc_wr_tx_v2_send(struct smc_link *link,
int smc_wr_tx_send_wait(struct smc_link *link, struct smc_wr_tx_pend_priv *priv,
unsigned long timeout);
void smc_wr_tx_cq_handler(struct ib_cq *ib_cq, void *cq_context);
void smc_wr_tx_dismiss_slots(struct smc_link *lnk, u8 wr_rx_hdr_type,
smc_wr_tx_filter filter,
smc_wr_tx_dismisser dismisser,
unsigned long data);
void smc_wr_tx_wait_no_pending_sends(struct smc_link *link);
int smc_wr_rx_register_handler(struct smc_wr_rx_handler *handler);

1
net/tls/tls_sw.c
View File

@ -2059,6 +2059,7 @@ ssize_t tls_sw_splice_read(struct socket *sock, loff_t *ppos,
splice_read_end:
release_sock(sk);
sk_defer_free_flush(sk);
return copied ? : err;
}

14
net/unix/garbage.c
View File

@ -192,8 +192,11 @@ void wait_for_unix_gc(void)
{
/* If number of inflight sockets is insane,
* force a garbage collect right now.
* Paired with the WRITE_ONCE() in unix_inflight(),
* unix_notinflight() and gc_in_progress().
*/
if (unix_tot_inflight > UNIX_INFLIGHT_TRIGGER_GC && !gc_in_progress)
if (READ_ONCE(unix_tot_inflight) > UNIX_INFLIGHT_TRIGGER_GC &&
!READ_ONCE(gc_in_progress))
unix_gc();
wait_event(unix_gc_wait, gc_in_progress == false);
}
@ -213,7 +216,9 @@ void unix_gc(void)
if (gc_in_progress)
goto out;
gc_in_progress = true;
/* Paired with READ_ONCE() in wait_for_unix_gc(). */
WRITE_ONCE(gc_in_progress, true);
/* First, select candidates for garbage collection. Only
* in-flight sockets are considered, and from those only ones
* which don't have any external reference.
@ -299,7 +304,10 @@ void unix_gc(void)
/* All candidates should have been detached by now. */
BUG_ON(!list_empty(&gc_candidates));
gc_in_progress = false;
/* Paired with READ_ONCE() in wait_for_unix_gc(). */
WRITE_ONCE(gc_in_progress, false);
wake_up(&unix_gc_wait);
out:

6
net/unix/scm.c
View File

@ -60,7 +60,8 @@ void unix_inflight(struct user_struct *user, struct file *fp)
} else {
BUG_ON(list_empty(&u->link));
}
unix_tot_inflight++;
/* Paired with READ_ONCE() in wait_for_unix_gc() */
WRITE_ONCE(unix_tot_inflight, unix_tot_inflight + 1);
}
user->unix_inflight++;
spin_unlock(&unix_gc_lock);
@ -80,7 +81,8 @@ void unix_notinflight(struct user_struct *user, struct file *fp)
if (atomic_long_dec_and_test(&u->inflight))
list_del_init(&u->link);
unix_tot_inflight--;
/* Paired with READ_ONCE() in wait_for_unix_gc() */
WRITE_ONCE(unix_tot_inflight, unix_tot_inflight - 1);
}
user->unix_inflight--;
spin_unlock(&unix_gc_lock);

3
net/xfrm/xfrm_policy.c
View File

@ -31,6 +31,7 @@
#include <linux/if_tunnel.h>
#include <net/dst.h>
#include <net/flow.h>
#include <net/inet_ecn.h>
#include <net/xfrm.h>
#include <net/ip.h>
#include <net/gre.h>
@ -3295,7 +3296,7 @@ decode_session4(struct sk_buff *skb, struct flowi *fl, bool reverse)
fl4->flowi4_proto = iph->protocol;
fl4->daddr = reverse ? iph->saddr : iph->daddr;
fl4->saddr = reverse ? iph->daddr : iph->saddr;
fl4->flowi4_tos = iph->tos;
fl4->flowi4_tos = iph->tos & ~INET_ECN_MASK;
if (!ip_is_fragment(iph)) {
switch (iph->protocol) {

14
tools/testing/selftests/bpf/prog_tests/d_path.c
View File

@ -10,6 +10,7 @@
#include "test_d_path.skel.h"
#include "test_d_path_check_rdonly_mem.skel.h"
#include "test_d_path_check_types.skel.h"
static int duration;
@ -167,6 +168,16 @@ static void test_d_path_check_rdonly_mem(void)
test_d_path_check_rdonly_mem__destroy(skel);
}
static void test_d_path_check_types(void)
{
struct test_d_path_check_types *skel;
skel = test_d_path_check_types__open_and_load();
ASSERT_ERR_PTR(skel, "unexpected_load_passing_wrong_type");
test_d_path_check_types__destroy(skel);
}
void test_d_path(void)
{
if (test__start_subtest("basic"))
@ -174,4 +185,7 @@ void test_d_path(void)
if (test__start_subtest("check_rdonly_mem"))
test_d_path_check_rdonly_mem();
if (test__start_subtest("check_alloc_mem"))
test_d_path_check_types();
}

61
tools/testing/selftests/bpf/prog_tests/xdp_link.c
View File

@ -8,46 +8,47 @@
void serial_test_xdp_link(void)
{
__u32 duration = 0, id1, id2, id0 = 0, prog_fd1, prog_fd2, err;
DECLARE_LIBBPF_OPTS(bpf_xdp_set_link_opts, opts, .old_fd = -1);
struct test_xdp_link *skel1 = NULL, *skel2 = NULL;
__u32 id1, id2, id0 = 0, prog_fd1, prog_fd2;
struct bpf_link_info link_info;
struct bpf_prog_info prog_info;
struct bpf_link *link;
int err;
__u32 link_info_len = sizeof(link_info);
__u32 prog_info_len = sizeof(prog_info);
skel1 = test_xdp_link__open_and_load();
if (CHECK(!skel1, "skel_load", "skeleton open and load failed\n"))
if (!ASSERT_OK_PTR(skel1, "skel_load"))
goto cleanup;
prog_fd1 = bpf_program__fd(skel1->progs.xdp_handler);
skel2 = test_xdp_link__open_and_load();
if (CHECK(!skel2, "skel_load", "skeleton open and load failed\n"))
if (!ASSERT_OK_PTR(skel2, "skel_load"))
goto cleanup;
prog_fd2 = bpf_program__fd(skel2->progs.xdp_handler);
memset(&prog_info, 0, sizeof(prog_info));
err = bpf_obj_get_info_by_fd(prog_fd1, &prog_info, &prog_info_len);
if (CHECK(err, "fd_info1", "failed %d\n", -errno))
if (!ASSERT_OK(err, "fd_info1"))
goto cleanup;
id1 = prog_info.id;
memset(&prog_info, 0, sizeof(prog_info));
err = bpf_obj_get_info_by_fd(prog_fd2, &prog_info, &prog_info_len);
if (CHECK(err, "fd_info2", "failed %d\n", -errno))
if (!ASSERT_OK(err, "fd_info2"))
goto cleanup;
id2 = prog_info.id;
/* set initial prog attachment */
err = bpf_set_link_xdp_fd_opts(IFINDEX_LO, prog_fd1, XDP_FLAGS_REPLACE, &opts);
if (CHECK(err, "fd_attach", "initial prog attach failed: %d\n", err))
if (!ASSERT_OK(err, "fd_attach"))
goto cleanup;
/* validate prog ID */
err = bpf_get_link_xdp_id(IFINDEX_LO, &id0, 0);
CHECK(err || id0 != id1, "id1_check",
"loaded prog id %u != id1 %u, err %d", id0, id1, err);
if (!ASSERT_OK(err, "id1_check_err") || !ASSERT_EQ(id0, id1, "id1_check_val"))
goto cleanup;
/* BPF link is not allowed to replace prog attachment */
link = bpf_program__attach_xdp(skel1->progs.xdp_handler, IFINDEX_LO);
@ -62,7 +63,7 @@ void serial_test_xdp_link(void)
/* detach BPF program */
opts.old_fd = prog_fd1;
err = bpf_set_link_xdp_fd_opts(IFINDEX_LO, -1, XDP_FLAGS_REPLACE, &opts);
if (CHECK(err, "prog_detach", "failed %d\n", err))
if (!ASSERT_OK(err, "prog_detach"))
goto cleanup;
/* now BPF link should attach successfully */
@ -73,24 +74,23 @@ void serial_test_xdp_link(void)
/* validate prog ID */
err = bpf_get_link_xdp_id(IFINDEX_LO, &id0, 0);
if (CHECK(err || id0 != id1, "id1_check",
"loaded prog id %u != id1 %u, err %d", id0, id1, err))
if (!ASSERT_OK(err, "id1_check_err") || !ASSERT_EQ(id0, id1, "id1_check_val"))
goto cleanup;
/* BPF prog attach is not allowed to replace BPF link */
opts.old_fd = prog_fd1;
err = bpf_set_link_xdp_fd_opts(IFINDEX_LO, prog_fd2, XDP_FLAGS_REPLACE, &opts);
if (CHECK(!err, "prog_attach_fail", "unexpected success\n"))
if (!ASSERT_ERR(err, "prog_attach_fail"))
goto cleanup;
/* Can't force-update when BPF link is active */
err = bpf_set_link_xdp_fd(IFINDEX_LO, prog_fd2, 0);
if (CHECK(!err, "prog_update_fail", "unexpected success\n"))
if (!ASSERT_ERR(err, "prog_update_fail"))
goto cleanup;
/* Can't force-detach when BPF link is active */
err = bpf_set_link_xdp_fd(IFINDEX_LO, -1, 0);
if (CHECK(!err, "prog_detach_fail", "unexpected success\n"))
if (!ASSERT_ERR(err, "prog_detach_fail"))
goto cleanup;
/* BPF link is not allowed to replace another BPF link */
@ -110,40 +110,39 @@ void serial_test_xdp_link(void)
skel2->links.xdp_handler = link;
err = bpf_get_link_xdp_id(IFINDEX_LO, &id0, 0);
if (CHECK(err || id0 != id2, "id2_check",
"loaded prog id %u != id2 %u, err %d", id0, id1, err))
if (!ASSERT_OK(err, "id2_check_err") || !ASSERT_EQ(id0, id2, "id2_check_val"))
goto cleanup;
/* updating program under active BPF link works as expected */
err = bpf_link__update_program(link, skel1->progs.xdp_handler);
if (CHECK(err, "link_upd", "failed: %d\n", err))
if (!ASSERT_OK(err, "link_upd"))
goto cleanup;
memset(&link_info, 0, sizeof(link_info));
err = bpf_obj_get_info_by_fd(bpf_link__fd(link), &link_info, &link_info_len);
if (CHECK(err, "link_info", "failed: %d\n", err))
if (!ASSERT_OK(err, "link_info"))
goto cleanup;
CHECK(link_info.type != BPF_LINK_TYPE_XDP, "link_type",
"got %u != exp %u\n", link_info.type, BPF_LINK_TYPE_XDP);
CHECK(link_info.prog_id != id1, "link_prog_id",
"got %u != exp %u\n", link_info.prog_id, id1);
CHECK(link_info.xdp.ifindex != IFINDEX_LO, "link_ifindex",
"got %u != exp %u\n", link_info.xdp.ifindex, IFINDEX_LO);
ASSERT_EQ(link_info.type, BPF_LINK_TYPE_XDP, "link_type");
ASSERT_EQ(link_info.prog_id, id1, "link_prog_id");
ASSERT_EQ(link_info.xdp.ifindex, IFINDEX_LO, "link_ifindex");
/* updating program under active BPF link with different type fails */
err = bpf_link__update_program(link, skel1->progs.tc_handler);
if (!ASSERT_ERR(err, "link_upd_invalid"))
goto cleanup;
err = bpf_link__detach(link);
if (CHECK(err, "link_detach", "failed %d\n", err))
if (!ASSERT_OK(err, "link_detach"))
goto cleanup;
memset(&link_info, 0, sizeof(link_info));
err = bpf_obj_get_info_by_fd(bpf_link__fd(link), &link_info, &link_info_len);
if (CHECK(err, "link_info", "failed: %d\n", err))
goto cleanup;
CHECK(link_info.prog_id != id1, "link_prog_id",
"got %u != exp %u\n", link_info.prog_id, id1);
ASSERT_OK(err, "link_info");
ASSERT_EQ(link_info.prog_id, id1, "link_prog_id");
/* ifindex should be zeroed out */
CHECK(link_info.xdp.ifindex != 0, "link_ifindex",
"got %u != exp %u\n", link_info.xdp.ifindex, 0);
ASSERT_EQ(link_info.xdp.ifindex, 0, "link_ifindex");
cleanup:
test_xdp_link__destroy(skel1);

32
tools/testing/selftests/bpf/progs/test_d_path_check_types.c Normal file
View File

@ -0,0 +1,32 @@
// SPDX-License-Identifier: GPL-2.0
#include "vmlinux.h"
#include <bpf/bpf_helpers.h>
#include <bpf/bpf_tracing.h>
extern const int bpf_prog_active __ksym;
struct {
__uint(type, BPF_MAP_TYPE_RINGBUF);
__uint(max_entries, 1 << 12);
} ringbuf SEC(".maps");
SEC("fentry/security_inode_getattr")
int BPF_PROG(d_path_check_rdonly_mem, struct path *path, struct kstat *stat,
__u32 request_mask, unsigned int query_flags)
{
void *active;
u32 cpu;
cpu = bpf_get_smp_processor_id();
active = (void *)bpf_per_cpu_ptr(&bpf_prog_active, cpu);
if (active) {
/* FAIL here! 'active' points to 'regular' memory. It
* cannot be submitted to ring buffer.
*/
bpf_ringbuf_submit(active, 0);
}
return 0;
}
char _license[] SEC("license") = "GPL";

6
tools/testing/selftests/bpf/progs/test_xdp_link.c
View File

@ -10,3 +10,9 @@ int xdp_handler(struct xdp_md *xdp)
{
return 0;
}
SEC("tc")
int tc_handler(struct __sk_buff *skb)
{
return 0;
}

95
tools/testing/selftests/bpf/verifier/ringbuf.c Normal file
View File

@ -0,0 +1,95 @@
{
"ringbuf: invalid reservation offset 1",
.insns = {
/* reserve 8 byte ringbuf memory */
BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
BPF_LD_MAP_FD(BPF_REG_1, 0),
BPF_MOV64_IMM(BPF_REG_2, 8),
BPF_MOV64_IMM(BPF_REG_3, 0),
BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_ringbuf_reserve),
/* store a pointer to the reserved memory in R6 */
BPF_MOV64_REG(BPF_REG_6, BPF_REG_0),
/* check whether the reservation was successful */
BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
/* spill R6(mem) into the stack */
BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_6, -8),
/* fill it back in R7 */
BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_10, -8),
/* should be able to access *(R7) = 0 */
BPF_ST_MEM(BPF_DW, BPF_REG_7, 0, 0),
/* submit the reserved ringbuf memory */
BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
/* add invalid offset to reserved ringbuf memory */
BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 0xcafe),
BPF_MOV64_IMM(BPF_REG_2, 0),
BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_ringbuf_submit),
BPF_MOV64_IMM(BPF_REG_0, 0),
BPF_EXIT_INSN(),
},
.fixup_map_ringbuf = { 1 },
.result = REJECT,
.errstr = "dereference of modified alloc_mem ptr R1",
},
{
"ringbuf: invalid reservation offset 2",
.insns = {
/* reserve 8 byte ringbuf memory */
BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
BPF_LD_MAP_FD(BPF_REG_1, 0),
BPF_MOV64_IMM(BPF_REG_2, 8),
BPF_MOV64_IMM(BPF_REG_3, 0),
BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_ringbuf_reserve),
/* store a pointer to the reserved memory in R6 */
BPF_MOV64_REG(BPF_REG_6, BPF_REG_0),
/* check whether the reservation was successful */
BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
/* spill R6(mem) into the stack */
BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_6, -8),
/* fill it back in R7 */
BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_10, -8),
/* add invalid offset to reserved ringbuf memory */
BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, 0xcafe),
/* should be able to access *(R7) = 0 */
BPF_ST_MEM(BPF_DW, BPF_REG_7, 0, 0),
/* submit the reserved ringbuf memory */
BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
BPF_MOV64_IMM(BPF_REG_2, 0),
BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_ringbuf_submit),
BPF_MOV64_IMM(BPF_REG_0, 0),
BPF_EXIT_INSN(),
},
.fixup_map_ringbuf = { 1 },
.result = REJECT,
.errstr = "R7 min value is outside of the allowed memory range",
},
{
"ringbuf: check passing rb mem to helpers",
.insns = {
BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
/* reserve 8 byte ringbuf memory */
BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
BPF_LD_MAP_FD(BPF_REG_1, 0),
BPF_MOV64_IMM(BPF_REG_2, 8),
BPF_MOV64_IMM(BPF_REG_3, 0),
BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_ringbuf_reserve),
BPF_MOV64_REG(BPF_REG_7, BPF_REG_0),
/* check whether the reservation was successful */
BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
BPF_EXIT_INSN(),
/* pass allocated ring buffer memory to fib lookup */
BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
BPF_MOV64_IMM(BPF_REG_3, 8),
BPF_MOV64_IMM(BPF_REG_4, 0),
BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_fib_lookup),
/* submit the ringbuf memory */
BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
BPF_MOV64_IMM(BPF_REG_2, 0),
BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_ringbuf_submit),
BPF_MOV64_IMM(BPF_REG_0, 0),
BPF_EXIT_INSN(),
},
.fixup_map_ringbuf = { 2 },
.prog_type = BPF_PROG_TYPE_XDP,
.result = ACCEPT,
},

2
tools/testing/selftests/bpf/verifier/spill_fill.c
View File

@ -84,7 +84,7 @@
},
.fixup_map_ringbuf = { 1 },
.result = REJECT,
.errstr = "R0 pointer arithmetic on mem_or_null prohibited",
.errstr = "R0 pointer arithmetic on alloc_mem_or_null prohibited",
},
{
"check corrupted spill/fill",

3
tools/testing/selftests/net/fcnal-test.sh
View File

@ -4059,6 +4059,9 @@ usage: ${0##*/} OPTS
-p Pause on fail
-P Pause after each test
-v Be verbose
Tests:
$TESTS_IPV4 $TESTS_IPV6 $TESTS_OTHER
EOF
}

2
tools/testing/selftests/net/settings
View File

@ -1 +1 @@
timeout=300
timeout=1500