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Merge branch 'r8169-smaller-improvements' 

Heiner Kallweit says:

====================
r8169: smaller improvements

This series includes smaller improvements, no functional change
intended.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2018-08-10 14:32:35 -07:00
parent bc4fcd0a1b abe8b2f71e
commit a487711aac
1 changed files with 106 additions and 148 deletions
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254
drivers/net/ethernet/realtek/r8169.c
View File

@ -19,6 +19,7 @@
#include <linux/if_vlan.h>
#include <linux/crc32.h>
#include <linux/in.h>
#include <linux/io.h>
#include <linux/ip.h>
#include <linux/tcp.h>
#include <linux/interrupt.h>
@ -29,9 +30,6 @@
#include <linux/ipv6.h>
#include <net/ip6_checksum.h>
#include <asm/io.h>
#include <asm/irq.h>
#define MODULENAME "r8169"
#define FIRMWARE_8168D_1 "rtl_nic/rtl8168d-1.fw"
@ -143,136 +141,70 @@ enum mac_version {
RTL_GIGA_MAC_NONE = 0xff,
};
enum rtl_tx_desc_version {
RTL_TD_0 = 0,
RTL_TD_1 = 1,
};
#define JUMBO_1K ETH_DATA_LEN
#define JUMBO_4K (4*1024 - ETH_HLEN - 2)
#define JUMBO_6K (6*1024 - ETH_HLEN - 2)
#define JUMBO_7K (7*1024 - ETH_HLEN - 2)
#define JUMBO_9K (9*1024 - ETH_HLEN - 2)
#define _R(NAME,TD,FW,SZ) { \
.name = NAME, \
.txd_version = TD, \
.fw_name = FW, \
.jumbo_max = SZ, \
}
static const struct {
const char *name;
enum rtl_tx_desc_version txd_version;
const char *fw_name;
u16 jumbo_max;
} rtl_chip_infos[] = {
/* PCI devices. */
[RTL_GIGA_MAC_VER_01] =
_R("RTL8169", RTL_TD_0, NULL, JUMBO_7K),
[RTL_GIGA_MAC_VER_02] =
_R("RTL8169s", RTL_TD_0, NULL, JUMBO_7K),
[RTL_GIGA_MAC_VER_03] =
_R("RTL8110s", RTL_TD_0, NULL, JUMBO_7K),
[RTL_GIGA_MAC_VER_04] =
_R("RTL8169sb/8110sb", RTL_TD_0, NULL, JUMBO_7K),
[RTL_GIGA_MAC_VER_05] =
_R("RTL8169sc/8110sc", RTL_TD_0, NULL, JUMBO_7K),
[RTL_GIGA_MAC_VER_06] =
_R("RTL8169sc/8110sc", RTL_TD_0, NULL, JUMBO_7K),
[RTL_GIGA_MAC_VER_01] = {"RTL8169" },
[RTL_GIGA_MAC_VER_02] = {"RTL8169s" },
[RTL_GIGA_MAC_VER_03] = {"RTL8110s" },
[RTL_GIGA_MAC_VER_04] = {"RTL8169sb/8110sb" },
[RTL_GIGA_MAC_VER_05] = {"RTL8169sc/8110sc" },
[RTL_GIGA_MAC_VER_06] = {"RTL8169sc/8110sc" },
/* PCI-E devices. */
[RTL_GIGA_MAC_VER_07] =
_R("RTL8102e", RTL_TD_1, NULL, JUMBO_1K),
[RTL_GIGA_MAC_VER_08] =
_R("RTL8102e", RTL_TD_1, NULL, JUMBO_1K),
[RTL_GIGA_MAC_VER_09] =
_R("RTL8102e", RTL_TD_1, NULL, JUMBO_1K),
[RTL_GIGA_MAC_VER_10] =
_R("RTL8101e", RTL_TD_0, NULL, JUMBO_1K),
[RTL_GIGA_MAC_VER_11] =
_R("RTL8168b/8111b", RTL_TD_0, NULL, JUMBO_4K),
[RTL_GIGA_MAC_VER_12] =
_R("RTL8168b/8111b", RTL_TD_0, NULL, JUMBO_4K),
[RTL_GIGA_MAC_VER_13] =
_R("RTL8101e", RTL_TD_0, NULL, JUMBO_1K),
[RTL_GIGA_MAC_VER_14] =
_R("RTL8100e", RTL_TD_0, NULL, JUMBO_1K),
[RTL_GIGA_MAC_VER_15] =
_R("RTL8100e", RTL_TD_0, NULL, JUMBO_1K),
[RTL_GIGA_MAC_VER_16] =
_R("RTL8101e", RTL_TD_0, NULL, JUMBO_1K),
[RTL_GIGA_MAC_VER_17] =
_R("RTL8168b/8111b", RTL_TD_0, NULL, JUMBO_4K),
[RTL_GIGA_MAC_VER_18] =
_R("RTL8168cp/8111cp", RTL_TD_1, NULL, JUMBO_6K),
[RTL_GIGA_MAC_VER_19] =
_R("RTL8168c/8111c", RTL_TD_1, NULL, JUMBO_6K),
[RTL_GIGA_MAC_VER_20] =
_R("RTL8168c/8111c", RTL_TD_1, NULL, JUMBO_6K),
[RTL_GIGA_MAC_VER_21] =
_R("RTL8168c/8111c", RTL_TD_1, NULL, JUMBO_6K),
[RTL_GIGA_MAC_VER_22] =
_R("RTL8168c/8111c", RTL_TD_1, NULL, JUMBO_6K),
[RTL_GIGA_MAC_VER_23] =
_R("RTL8168cp/8111cp", RTL_TD_1, NULL, JUMBO_6K),
[RTL_GIGA_MAC_VER_24] =
_R("RTL8168cp/8111cp", RTL_TD_1, NULL, JUMBO_6K),
[RTL_GIGA_MAC_VER_25] =
_R("RTL8168d/8111d", RTL_TD_1, FIRMWARE_8168D_1, JUMBO_9K),
[RTL_GIGA_MAC_VER_26] =
_R("RTL8168d/8111d", RTL_TD_1, FIRMWARE_8168D_2, JUMBO_9K),
[RTL_GIGA_MAC_VER_27] =
_R("RTL8168dp/8111dp", RTL_TD_1, NULL, JUMBO_9K),
[RTL_GIGA_MAC_VER_28] =
_R("RTL8168dp/8111dp", RTL_TD_1, NULL, JUMBO_9K),
[RTL_GIGA_MAC_VER_29] =
_R("RTL8105e", RTL_TD_1, FIRMWARE_8105E_1, JUMBO_1K),
[RTL_GIGA_MAC_VER_30] =
_R("RTL8105e", RTL_TD_1, FIRMWARE_8105E_1, JUMBO_1K),
[RTL_GIGA_MAC_VER_31] =
_R("RTL8168dp/8111dp", RTL_TD_1, NULL, JUMBO_9K),
[RTL_GIGA_MAC_VER_32] =
_R("RTL8168e/8111e", RTL_TD_1, FIRMWARE_8168E_1, JUMBO_9K),
[RTL_GIGA_MAC_VER_33] =
_R("RTL8168e/8111e", RTL_TD_1, FIRMWARE_8168E_2, JUMBO_9K),
[RTL_GIGA_MAC_VER_34] =
_R("RTL8168evl/8111evl",RTL_TD_1, FIRMWARE_8168E_3, JUMBO_9K),
[RTL_GIGA_MAC_VER_35] =
_R("RTL8168f/8111f", RTL_TD_1, FIRMWARE_8168F_1, JUMBO_9K),
[RTL_GIGA_MAC_VER_36] =
_R("RTL8168f/8111f", RTL_TD_1, FIRMWARE_8168F_2, JUMBO_9K),
[RTL_GIGA_MAC_VER_37] =
_R("RTL8402", RTL_TD_1, FIRMWARE_8402_1, JUMBO_1K),
[RTL_GIGA_MAC_VER_38] =
_R("RTL8411", RTL_TD_1, FIRMWARE_8411_1, JUMBO_9K),
[RTL_GIGA_MAC_VER_39] =
_R("RTL8106e", RTL_TD_1, FIRMWARE_8106E_1, JUMBO_1K),
[RTL_GIGA_MAC_VER_40] =
_R("RTL8168g/8111g", RTL_TD_1, FIRMWARE_8168G_2, JUMBO_9K),
[RTL_GIGA_MAC_VER_41] =
_R("RTL8168g/8111g", RTL_TD_1, NULL, JUMBO_9K),
[RTL_GIGA_MAC_VER_42] =
_R("RTL8168g/8111g", RTL_TD_1, FIRMWARE_8168G_3, JUMBO_9K),
[RTL_GIGA_MAC_VER_43] =
_R("RTL8106e", RTL_TD_1, FIRMWARE_8106E_2, JUMBO_1K),
[RTL_GIGA_MAC_VER_44] =
_R("RTL8411", RTL_TD_1, FIRMWARE_8411_2, JUMBO_9K),
[RTL_GIGA_MAC_VER_45] =
_R("RTL8168h/8111h", RTL_TD_1, FIRMWARE_8168H_1, JUMBO_9K),
[RTL_GIGA_MAC_VER_46] =
_R("RTL8168h/8111h", RTL_TD_1, FIRMWARE_8168H_2, JUMBO_9K),
[RTL_GIGA_MAC_VER_47] =
_R("RTL8107e", RTL_TD_1, FIRMWARE_8107E_1, JUMBO_1K),
[RTL_GIGA_MAC_VER_48] =
_R("RTL8107e", RTL_TD_1, FIRMWARE_8107E_2, JUMBO_1K),
[RTL_GIGA_MAC_VER_49] =
_R("RTL8168ep/8111ep", RTL_TD_1, NULL, JUMBO_9K),
[RTL_GIGA_MAC_VER_50] =
_R("RTL8168ep/8111ep", RTL_TD_1, NULL, JUMBO_9K),
[RTL_GIGA_MAC_VER_51] =
_R("RTL8168ep/8111ep", RTL_TD_1, NULL, JUMBO_9K),
[RTL_GIGA_MAC_VER_07] = {"RTL8102e" },
[RTL_GIGA_MAC_VER_08] = {"RTL8102e" },
[RTL_GIGA_MAC_VER_09] = {"RTL8102e" },
[RTL_GIGA_MAC_VER_10] = {"RTL8101e" },
[RTL_GIGA_MAC_VER_11] = {"RTL8168b/8111b" },
[RTL_GIGA_MAC_VER_12] = {"RTL8168b/8111b" },
[RTL_GIGA_MAC_VER_13] = {"RTL8101e" },
[RTL_GIGA_MAC_VER_14] = {"RTL8100e" },
[RTL_GIGA_MAC_VER_15] = {"RTL8100e" },
[RTL_GIGA_MAC_VER_16] = {"RTL8101e" },
[RTL_GIGA_MAC_VER_17] = {"RTL8168b/8111b" },
[RTL_GIGA_MAC_VER_18] = {"RTL8168cp/8111cp" },
[RTL_GIGA_MAC_VER_19] = {"RTL8168c/8111c" },
[RTL_GIGA_MAC_VER_20] = {"RTL8168c/8111c" },
[RTL_GIGA_MAC_VER_21] = {"RTL8168c/8111c" },
[RTL_GIGA_MAC_VER_22] = {"RTL8168c/8111c" },
[RTL_GIGA_MAC_VER_23] = {"RTL8168cp/8111cp" },
[RTL_GIGA_MAC_VER_24] = {"RTL8168cp/8111cp" },
[RTL_GIGA_MAC_VER_25] = {"RTL8168d/8111d", FIRMWARE_8168D_1},
[RTL_GIGA_MAC_VER_26] = {"RTL8168d/8111d", FIRMWARE_8168D_2},
[RTL_GIGA_MAC_VER_27] = {"RTL8168dp/8111dp" },
[RTL_GIGA_MAC_VER_28] = {"RTL8168dp/8111dp" },
[RTL_GIGA_MAC_VER_29] = {"RTL8105e", FIRMWARE_8105E_1},
[RTL_GIGA_MAC_VER_30] = {"RTL8105e", FIRMWARE_8105E_1},
[RTL_GIGA_MAC_VER_31] = {"RTL8168dp/8111dp" },
[RTL_GIGA_MAC_VER_32] = {"RTL8168e/8111e", FIRMWARE_8168E_1},
[RTL_GIGA_MAC_VER_33] = {"RTL8168e/8111e", FIRMWARE_8168E_2},
[RTL_GIGA_MAC_VER_34] = {"RTL8168evl/8111evl", FIRMWARE_8168E_3},
[RTL_GIGA_MAC_VER_35] = {"RTL8168f/8111f", FIRMWARE_8168F_1},
[RTL_GIGA_MAC_VER_36] = {"RTL8168f/8111f", FIRMWARE_8168F_2},
[RTL_GIGA_MAC_VER_37] = {"RTL8402", FIRMWARE_8402_1 },
[RTL_GIGA_MAC_VER_38] = {"RTL8411", FIRMWARE_8411_1 },
[RTL_GIGA_MAC_VER_39] = {"RTL8106e", FIRMWARE_8106E_1},
[RTL_GIGA_MAC_VER_40] = {"RTL8168g/8111g", FIRMWARE_8168G_2},
[RTL_GIGA_MAC_VER_41] = {"RTL8168g/8111g" },
[RTL_GIGA_MAC_VER_42] = {"RTL8168g/8111g", FIRMWARE_8168G_3},
[RTL_GIGA_MAC_VER_43] = {"RTL8106e", FIRMWARE_8106E_2},
[RTL_GIGA_MAC_VER_44] = {"RTL8411", FIRMWARE_8411_2 },
[RTL_GIGA_MAC_VER_45] = {"RTL8168h/8111h", FIRMWARE_8168H_1},
[RTL_GIGA_MAC_VER_46] = {"RTL8168h/8111h", FIRMWARE_8168H_2},
[RTL_GIGA_MAC_VER_47] = {"RTL8107e", FIRMWARE_8107E_1},
[RTL_GIGA_MAC_VER_48] = {"RTL8107e", FIRMWARE_8107E_2},
[RTL_GIGA_MAC_VER_49] = {"RTL8168ep/8111ep" },
[RTL_GIGA_MAC_VER_50] = {"RTL8168ep/8111ep" },
[RTL_GIGA_MAC_VER_51] = {"RTL8168ep/8111ep" },
};
#undef _R
enum cfg_version {
RTL_CFG_0 = 0x00,
@ -6522,20 +6454,15 @@ release_descriptor:
static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance)
{
struct rtl8169_private *tp = dev_instance;
int handled = 0;
u16 status;
u16 status = rtl_get_events(tp);
status = rtl_get_events(tp);
if (status && status != 0xffff) {
status &= RTL_EVENT_NAPI | tp->event_slow;
if (status) {
handled = 1;
if (status == 0xffff || !(status & (RTL_EVENT_NAPI | tp->event_slow)))
return IRQ_NONE;
rtl_irq_disable(tp);
napi_schedule_irqoff(&tp->napi);
}
}
return IRQ_RETVAL(handled);
rtl_irq_disable(tp);
napi_schedule_irqoff(&tp->napi);
return IRQ_HANDLED;
}
/*
@ -7281,13 +7208,48 @@ static void rtl_hw_initialize(struct rtl8169_private *tp)
}
}
/* Versions RTL8102e and from RTL8168c onwards support csum_v2 */
static bool rtl_chip_supports_csum_v2(struct rtl8169_private *tp)
{
switch (tp->mac_version) {
case RTL_GIGA_MAC_VER_01 ... RTL_GIGA_MAC_VER_06:
case RTL_GIGA_MAC_VER_10 ... RTL_GIGA_MAC_VER_17:
return false;
default:
return true;
}
}
static int rtl_jumbo_max(struct rtl8169_private *tp)
{
/* Non-GBit versions don't support jumbo frames */
if (!tp->supports_gmii)
return JUMBO_1K;
switch (tp->mac_version) {
/* RTL8169 */
case RTL_GIGA_MAC_VER_01 ... RTL_GIGA_MAC_VER_06:
return JUMBO_7K;
/* RTL8168b */
case RTL_GIGA_MAC_VER_11:
case RTL_GIGA_MAC_VER_12:
case RTL_GIGA_MAC_VER_17:
return JUMBO_4K;
/* RTL8168c */
case RTL_GIGA_MAC_VER_18 ... RTL_GIGA_MAC_VER_24:
return JUMBO_6K;
default:
return JUMBO_9K;
}
}
static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
{
const struct rtl_cfg_info *cfg = rtl_cfg_infos + ent->driver_data;
struct rtl8169_private *tp;
struct net_device *dev;
int chipset, region, i;
int rc;
int jumbo_max, rc;
dev = devm_alloc_etherdev(&pdev->dev, sizeof (*tp));
if (!dev)
@ -7438,16 +7400,11 @@ static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
/* Disallow toggling */
dev->hw_features &= ~NETIF_F_HW_VLAN_CTAG_RX;
switch (rtl_chip_infos[chipset].txd_version) {
case RTL_TD_0:
tp->tso_csum = rtl8169_tso_csum_v1;
break;
case RTL_TD_1:
if (rtl_chip_supports_csum_v2(tp)) {
tp->tso_csum = rtl8169_tso_csum_v2;
dev->hw_features |= NETIF_F_IPV6_CSUM | NETIF_F_TSO6;
break;
default:
WARN_ON_ONCE(1);
} else {
tp->tso_csum = rtl8169_tso_csum_v1;
}
dev->hw_features |= NETIF_F_RXALL;
@ -7455,7 +7412,8 @@ static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
/* MTU range: 60 - hw-specific max */
dev->min_mtu = ETH_ZLEN;
dev->max_mtu = rtl_chip_infos[chipset].jumbo_max;
jumbo_max = rtl_jumbo_max(tp);
dev->max_mtu = jumbo_max;
tp->hw_start = cfg->hw_start;
tp->event_slow = cfg->event_slow;
@ -7486,12 +7444,12 @@ static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
rtl_chip_infos[chipset].name, dev->dev_addr,
(u32)(RTL_R32(tp, TxConfig) & 0xfcf0f8ff),
pci_irq_vector(pdev, 0));
if (rtl_chip_infos[chipset].jumbo_max != JUMBO_1K) {
netif_info(tp, probe, dev, "jumbo features [frames: %d bytes, "
"tx checksumming: %s]\n",
rtl_chip_infos[chipset].jumbo_max,
tp->mac_version <= RTL_GIGA_MAC_VER_06 ? "ok" : "ko");
}
if (jumbo_max > JUMBO_1K)
netif_info(tp, probe, dev,
"jumbo features [frames: %d bytes, tx checksumming: %s]\n",
jumbo_max, tp->mac_version <= RTL_GIGA_MAC_VER_06 ?
"ok" : "ko");
if (r8168_check_dash(tp))
rtl8168_driver_start(tp);