r8169: jumbo fixes.
- fix features : jumbo frames and checksumming can not be used at the
same time.
- introduce hw_jumbo_{enable / disable} helpers. Their content has been
creatively extracted from Realtek's own drivers. As an illustration,
it would be nice to know how/if the MaxTxPacketSize register operates
when the device can work with a 9k jumbo frame as its documentation
(8168c) can not be applied beyond ~7k.
- rtl_tx_performance_tweak is moved forward. No change.
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
This commit is contained in:
Francois Romieu
parent
deb9d93c89
commit
d58d46b5d8
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@ -145,88 +145,110 @@ enum rtl_tx_desc_version {
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RTL_TD_1 = 1,
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};
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#define _R(NAME,TD,FW) \
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{ .name = NAME, .txd_version = TD, .fw_name = FW }
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#define JUMBO_1K ETH_DATA_LEN
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#define JUMBO_4K (4*1024 - ETH_HLEN - 2)
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#define JUMBO_6K (6*1024 - ETH_HLEN - 2)
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#define JUMBO_7K (7*1024 - ETH_HLEN - 2)
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#define JUMBO_9K (9*1024 - ETH_HLEN - 2)
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#define _R(NAME,TD,FW,SZ,B) { \
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.name = NAME, \
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.txd_version = TD, \
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.fw_name = FW, \
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.jumbo_max = SZ, \
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.jumbo_tx_csum = B \
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}
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static const struct {
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const char *name;
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enum rtl_tx_desc_version txd_version;
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const char *fw_name;
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u16 jumbo_max;
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bool jumbo_tx_csum;
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} rtl_chip_infos[] = {
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/* PCI devices. */
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[RTL_GIGA_MAC_VER_01] =
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_R("RTL8169", RTL_TD_0, NULL),
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_R("RTL8169", RTL_TD_0, NULL, JUMBO_7K, true),
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[RTL_GIGA_MAC_VER_02] =
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_R("RTL8169s", RTL_TD_0, NULL),
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_R("RTL8169s", RTL_TD_0, NULL, JUMBO_7K, true),
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[RTL_GIGA_MAC_VER_03] =
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_R("RTL8110s", RTL_TD_0, NULL),
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_R("RTL8110s", RTL_TD_0, NULL, JUMBO_7K, true),
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[RTL_GIGA_MAC_VER_04] =
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_R("RTL8169sb/8110sb", RTL_TD_0, NULL),
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_R("RTL8169sb/8110sb", RTL_TD_0, NULL, JUMBO_7K, true),
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[RTL_GIGA_MAC_VER_05] =
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_R("RTL8169sc/8110sc", RTL_TD_0, NULL),
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_R("RTL8169sc/8110sc", RTL_TD_0, NULL, JUMBO_7K, true),
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[RTL_GIGA_MAC_VER_06] =
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_R("RTL8169sc/8110sc", RTL_TD_0, NULL),
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_R("RTL8169sc/8110sc", RTL_TD_0, NULL, JUMBO_7K, true),
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/* PCI-E devices. */
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[RTL_GIGA_MAC_VER_07] =
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_R("RTL8102e", RTL_TD_1, NULL),
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_R("RTL8102e", RTL_TD_1, NULL, JUMBO_1K, true),
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[RTL_GIGA_MAC_VER_08] =
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_R("RTL8102e", RTL_TD_1, NULL),
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_R("RTL8102e", RTL_TD_1, NULL, JUMBO_1K, true),
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[RTL_GIGA_MAC_VER_09] =
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_R("RTL8102e", RTL_TD_1, NULL),
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_R("RTL8102e", RTL_TD_1, NULL, JUMBO_1K, true),
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[RTL_GIGA_MAC_VER_10] =
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_R("RTL8101e", RTL_TD_0, NULL),
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_R("RTL8101e", RTL_TD_0, NULL, JUMBO_1K, true),
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[RTL_GIGA_MAC_VER_11] =
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_R("RTL8168b/8111b", RTL_TD_0, NULL),
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_R("RTL8168b/8111b", RTL_TD_0, NULL, JUMBO_4K, false),
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[RTL_GIGA_MAC_VER_12] =
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_R("RTL8168b/8111b", RTL_TD_0, NULL),
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_R("RTL8168b/8111b", RTL_TD_0, NULL, JUMBO_4K, false),
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[RTL_GIGA_MAC_VER_13] =
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_R("RTL8101e", RTL_TD_0, NULL),
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_R("RTL8101e", RTL_TD_0, NULL, JUMBO_1K, true),
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[RTL_GIGA_MAC_VER_14] =
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_R("RTL8100e", RTL_TD_0, NULL),
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_R("RTL8100e", RTL_TD_0, NULL, JUMBO_1K, true),
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[RTL_GIGA_MAC_VER_15] =
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_R("RTL8100e", RTL_TD_0, NULL),
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_R("RTL8100e", RTL_TD_0, NULL, JUMBO_1K, true),
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[RTL_GIGA_MAC_VER_16] =
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_R("RTL8101e", RTL_TD_0, NULL),
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_R("RTL8101e", RTL_TD_0, NULL, JUMBO_1K, true),
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[RTL_GIGA_MAC_VER_17] =
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_R("RTL8168b/8111b", RTL_TD_0, NULL),
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_R("RTL8168b/8111b", RTL_TD_1, NULL, JUMBO_4K, false),
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[RTL_GIGA_MAC_VER_18] =
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_R("RTL8168cp/8111cp", RTL_TD_1, NULL),
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_R("RTL8168cp/8111cp", RTL_TD_1, NULL, JUMBO_6K, false),
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[RTL_GIGA_MAC_VER_19] =
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_R("RTL8168c/8111c", RTL_TD_1, NULL),
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_R("RTL8168c/8111c", RTL_TD_1, NULL, JUMBO_6K, false),
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[RTL_GIGA_MAC_VER_20] =
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_R("RTL8168c/8111c", RTL_TD_1, NULL),
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_R("RTL8168c/8111c", RTL_TD_1, NULL, JUMBO_6K, false),
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[RTL_GIGA_MAC_VER_21] =
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_R("RTL8168c/8111c", RTL_TD_1, NULL),
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_R("RTL8168c/8111c", RTL_TD_1, NULL, JUMBO_6K, false),
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[RTL_GIGA_MAC_VER_22] =
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_R("RTL8168c/8111c", RTL_TD_1, NULL),
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_R("RTL8168c/8111c", RTL_TD_1, NULL, JUMBO_6K, false),
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[RTL_GIGA_MAC_VER_23] =
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_R("RTL8168cp/8111cp", RTL_TD_1, NULL),
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_R("RTL8168cp/8111cp", RTL_TD_1, NULL, JUMBO_6K, false),
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[RTL_GIGA_MAC_VER_24] =
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_R("RTL8168cp/8111cp", RTL_TD_1, NULL),
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_R("RTL8168cp/8111cp", RTL_TD_1, NULL, JUMBO_6K, false),
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[RTL_GIGA_MAC_VER_25] =
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_R("RTL8168d/8111d", RTL_TD_1, FIRMWARE_8168D_1),
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_R("RTL8168d/8111d", RTL_TD_1, FIRMWARE_8168D_1,
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JUMBO_9K, false),
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[RTL_GIGA_MAC_VER_26] =
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_R("RTL8168d/8111d", RTL_TD_1, FIRMWARE_8168D_2),
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_R("RTL8168d/8111d", RTL_TD_1, FIRMWARE_8168D_2,
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JUMBO_9K, false),
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[RTL_GIGA_MAC_VER_27] =
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_R("RTL8168dp/8111dp", RTL_TD_1, NULL),
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_R("RTL8168dp/8111dp", RTL_TD_1, NULL, JUMBO_9K, false),
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[RTL_GIGA_MAC_VER_28] =
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_R("RTL8168dp/8111dp", RTL_TD_1, NULL),
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_R("RTL8168dp/8111dp", RTL_TD_1, NULL, JUMBO_9K, false),
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[RTL_GIGA_MAC_VER_29] =
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_R("RTL8105e", RTL_TD_1, FIRMWARE_8105E_1),
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_R("RTL8105e", RTL_TD_1, FIRMWARE_8105E_1,
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JUMBO_1K, true),
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[RTL_GIGA_MAC_VER_30] =
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_R("RTL8105e", RTL_TD_1, FIRMWARE_8105E_1),
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_R("RTL8105e", RTL_TD_1, FIRMWARE_8105E_1,
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JUMBO_1K, true),
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[RTL_GIGA_MAC_VER_31] =
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_R("RTL8168dp/8111dp", RTL_TD_1, NULL),
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_R("RTL8168dp/8111dp", RTL_TD_1, NULL, JUMBO_9K, false),
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[RTL_GIGA_MAC_VER_32] =
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_R("RTL8168e/8111e", RTL_TD_1, FIRMWARE_8168E_1),
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_R("RTL8168e/8111e", RTL_TD_1, FIRMWARE_8168E_1,
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JUMBO_9K, false),
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[RTL_GIGA_MAC_VER_33] =
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_R("RTL8168e/8111e", RTL_TD_1, FIRMWARE_8168E_2),
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_R("RTL8168e/8111e", RTL_TD_1, FIRMWARE_8168E_2,
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JUMBO_9K, false),
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[RTL_GIGA_MAC_VER_34] =
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_R("RTL8168evl/8111evl",RTL_TD_1, FIRMWARE_8168E_3),
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_R("RTL8168evl/8111evl",RTL_TD_1, FIRMWARE_8168E_3,
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JUMBO_9K, false),
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[RTL_GIGA_MAC_VER_35] =
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_R("RTL8168f/8111f", RTL_TD_1, FIRMWARE_8168F_1),
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_R("RTL8168f/8111f", RTL_TD_1, FIRMWARE_8168F_1,
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JUMBO_9K, false),
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[RTL_GIGA_MAC_VER_36] =
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_R("RTL8168f/8111f", RTL_TD_1, FIRMWARE_8168F_2)
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_R("RTL8168f/8111f", RTL_TD_1, FIRMWARE_8168F_2,
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JUMBO_9K, false),
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};
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#undef _R
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@ -469,8 +491,12 @@ enum rtl_register_content {
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/* Config3 register p.25 */
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MagicPacket = (1 << 5), /* Wake up when receives a Magic Packet */
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LinkUp = (1 << 4), /* Wake up when the cable connection is re-established */
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Jumbo_En0 = (1 << 2), /* 8168 only. Reserved in the 8168b */
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Beacon_en = (1 << 0), /* 8168 only. Reserved in the 8168b */
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/* Config4 register */
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Jumbo_En1 = (1 << 1), /* 8168 only. Reserved in the 8168b */
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/* Config5 register p.27 */
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BWF = (1 << 6), /* Accept Broadcast wakeup frame */
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MWF = (1 << 5), /* Accept Multicast wakeup frame */
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@ -679,6 +705,11 @@ struct rtl8169_private {
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void (*up)(struct rtl8169_private *);
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} pll_power_ops;
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struct jumbo_ops {
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void (*enable)(struct rtl8169_private *);
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void (*disable)(struct rtl8169_private *);
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} jumbo_ops;
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int (*set_speed)(struct net_device *, u8 aneg, u16 sp, u8 dpx, u32 adv);
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int (*get_settings)(struct net_device *, struct ethtool_cmd *);
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void (*phy_reset_enable)(struct rtl8169_private *tp);
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@ -743,6 +774,19 @@ static void rtl8169_down(struct net_device *dev);
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static void rtl8169_rx_clear(struct rtl8169_private *tp);
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static int rtl8169_poll(struct napi_struct *napi, int budget);
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static void rtl_tx_performance_tweak(struct pci_dev *pdev, u16 force)
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{
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int cap = pci_pcie_cap(pdev);
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if (cap) {
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u16 ctl;
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pci_read_config_word(pdev, cap + PCI_EXP_DEVCTL, &ctl);
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ctl = (ctl & ~PCI_EXP_DEVCTL_READRQ) | force;
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pci_write_config_word(pdev, cap + PCI_EXP_DEVCTL, ctl);
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}
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}
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static u32 ocp_read(struct rtl8169_private *tp, u8 mask, u16 reg)
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{
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void __iomem *ioaddr = tp->mmio_addr;
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@ -1511,9 +1555,15 @@ static int rtl8169_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
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static u32 rtl8169_fix_features(struct net_device *dev, u32 features)
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{
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struct rtl8169_private *tp = netdev_priv(dev);
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if (dev->mtu > TD_MSS_MAX)
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features &= ~NETIF_F_ALL_TSO;
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if (dev->mtu > JUMBO_1K &&
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!rtl_chip_infos[tp->mac_version].jumbo_tx_csum)
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features &= ~NETIF_F_IP_CSUM;
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return features;
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}
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@ -3608,8 +3658,8 @@ static void r8168_pll_power_up(struct rtl8169_private *tp)
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r8168_phy_power_up(tp);
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}
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static void rtl_pll_power_op(struct rtl8169_private *tp,
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void (*op)(struct rtl8169_private *))
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static void rtl_generic_op(struct rtl8169_private *tp,
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void (*op)(struct rtl8169_private *))
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{
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if (op)
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op(tp);
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@ -3617,12 +3667,12 @@ static void rtl_pll_power_op(struct rtl8169_private *tp,
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static void rtl_pll_power_down(struct rtl8169_private *tp)
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{
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rtl_pll_power_op(tp, tp->pll_power_ops.down);
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rtl_generic_op(tp, tp->pll_power_ops.down);
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}
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static void rtl_pll_power_up(struct rtl8169_private *tp)
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{
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rtl_pll_power_op(tp, tp->pll_power_ops.up);
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rtl_generic_op(tp, tp->pll_power_ops.up);
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}
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static void __devinit rtl_init_pll_power_ops(struct rtl8169_private *tp)
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@ -3713,6 +3763,150 @@ static void rtl8169_init_ring_indexes(struct rtl8169_private *tp)
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tp->dirty_tx = tp->dirty_rx = tp->cur_tx = tp->cur_rx = 0;
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}
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static void rtl_hw_jumbo_enable(struct rtl8169_private *tp)
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{
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rtl_generic_op(tp, tp->jumbo_ops.enable);
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}
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static void rtl_hw_jumbo_disable(struct rtl8169_private *tp)
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{
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rtl_generic_op(tp, tp->jumbo_ops.disable);
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}
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static void r8168c_hw_jumbo_enable(struct rtl8169_private *tp)
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{
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void __iomem *ioaddr = tp->mmio_addr;
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RTL_W8(Config3, RTL_R8(Config3) | Jumbo_En0);
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RTL_W8(Config4, RTL_R8(Config4) | Jumbo_En1);
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rtl_tx_performance_tweak(tp->pci_dev, 0x2 << MAX_READ_REQUEST_SHIFT);
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}
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static void r8168c_hw_jumbo_disable(struct rtl8169_private *tp)
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{
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void __iomem *ioaddr = tp->mmio_addr;
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RTL_W8(Config3, RTL_R8(Config3) & ~Jumbo_En0);
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RTL_W8(Config4, RTL_R8(Config4) & ~Jumbo_En1);
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rtl_tx_performance_tweak(tp->pci_dev, 0x5 << MAX_READ_REQUEST_SHIFT);
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}
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static void r8168dp_hw_jumbo_enable(struct rtl8169_private *tp)
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{
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void __iomem *ioaddr = tp->mmio_addr;
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RTL_W8(Config3, RTL_R8(Config3) | Jumbo_En0);
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}
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static void r8168dp_hw_jumbo_disable(struct rtl8169_private *tp)
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{
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void __iomem *ioaddr = tp->mmio_addr;
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RTL_W8(Config3, RTL_R8(Config3) & ~Jumbo_En0);
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}
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static void r8168e_hw_jumbo_enable(struct rtl8169_private *tp)
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{
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void __iomem *ioaddr = tp->mmio_addr;
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struct pci_dev *pdev = tp->pci_dev;
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RTL_W8(MaxTxPacketSize, 0x3f);
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RTL_W8(Config3, RTL_R8(Config3) | Jumbo_En0);
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RTL_W8(Config4, RTL_R8(Config4) | 0x01);
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pci_write_config_byte(pdev, 0x79, 0x20);
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}
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static void r8168e_hw_jumbo_disable(struct rtl8169_private *tp)
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{
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void __iomem *ioaddr = tp->mmio_addr;
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struct pci_dev *pdev = tp->pci_dev;
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RTL_W8(MaxTxPacketSize, 0x0c);
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RTL_W8(Config3, RTL_R8(Config3) & ~Jumbo_En0);
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RTL_W8(Config4, RTL_R8(Config4) & ~0x01);
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pci_write_config_byte(pdev, 0x79, 0x50);
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}
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static void r8168b_0_hw_jumbo_enable(struct rtl8169_private *tp)
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{
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rtl_tx_performance_tweak(tp->pci_dev,
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(0x2 << MAX_READ_REQUEST_SHIFT) | PCI_EXP_DEVCTL_NOSNOOP_EN);
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}
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static void r8168b_0_hw_jumbo_disable(struct rtl8169_private *tp)
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{
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rtl_tx_performance_tweak(tp->pci_dev,
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(0x5 << MAX_READ_REQUEST_SHIFT) | PCI_EXP_DEVCTL_NOSNOOP_EN);
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}
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static void r8168b_1_hw_jumbo_enable(struct rtl8169_private *tp)
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{
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void __iomem *ioaddr = tp->mmio_addr;
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r8168b_0_hw_jumbo_enable(tp);
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RTL_W8(Config4, RTL_R8(Config4) | (1 << 0));
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}
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static void r8168b_1_hw_jumbo_disable(struct rtl8169_private *tp)
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{
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void __iomem *ioaddr = tp->mmio_addr;
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r8168b_0_hw_jumbo_disable(tp);
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RTL_W8(Config4, RTL_R8(Config4) & ~(1 << 0));
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}
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static void __devinit rtl_init_jumbo_ops(struct rtl8169_private *tp)
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{
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struct jumbo_ops *ops = &tp->jumbo_ops;
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switch (tp->mac_version) {
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case RTL_GIGA_MAC_VER_11:
|
||||
ops->disable = r8168b_0_hw_jumbo_disable;
|
||||
ops->enable = r8168b_0_hw_jumbo_enable;
|
||||
break;
|
||||
case RTL_GIGA_MAC_VER_12:
|
||||
case RTL_GIGA_MAC_VER_17:
|
||||
ops->disable = r8168b_1_hw_jumbo_disable;
|
||||
ops->enable = r8168b_1_hw_jumbo_enable;
|
||||
break;
|
||||
case RTL_GIGA_MAC_VER_18: /* Wild guess. Needs info from Realtek. */
|
||||
case RTL_GIGA_MAC_VER_19:
|
||||
case RTL_GIGA_MAC_VER_20:
|
||||
case RTL_GIGA_MAC_VER_21: /* Wild guess. Needs info from Realtek. */
|
||||
case RTL_GIGA_MAC_VER_22:
|
||||
case RTL_GIGA_MAC_VER_23:
|
||||
case RTL_GIGA_MAC_VER_24:
|
||||
case RTL_GIGA_MAC_VER_25:
|
||||
case RTL_GIGA_MAC_VER_26:
|
||||
ops->disable = r8168c_hw_jumbo_disable;
|
||||
ops->enable = r8168c_hw_jumbo_enable;
|
||||
break;
|
||||
case RTL_GIGA_MAC_VER_27:
|
||||
case RTL_GIGA_MAC_VER_28:
|
||||
ops->disable = r8168dp_hw_jumbo_disable;
|
||||
ops->enable = r8168dp_hw_jumbo_enable;
|
||||
break;
|
||||
case RTL_GIGA_MAC_VER_31: /* Wild guess. Needs info from Realtek. */
|
||||
case RTL_GIGA_MAC_VER_32:
|
||||
case RTL_GIGA_MAC_VER_33:
|
||||
case RTL_GIGA_MAC_VER_34:
|
||||
ops->disable = r8168e_hw_jumbo_disable;
|
||||
ops->enable = r8168e_hw_jumbo_enable;
|
||||
break;
|
||||
|
||||
/*
|
||||
* No action needed for jumbo frames with 8169.
|
||||
* No jumbo for 810x at all.
|
||||
*/
|
||||
default:
|
||||
ops->disable = NULL;
|
||||
ops->enable = NULL;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static void rtl_hw_reset(struct rtl8169_private *tp)
|
||||
{
|
||||
void __iomem *ioaddr = tp->mmio_addr;
|
||||
|
|
@ -3857,6 +4051,7 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
|
|||
|
||||
rtl_init_mdio_ops(tp);
|
||||
rtl_init_pll_power_ops(tp);
|
||||
rtl_init_jumbo_ops(tp);
|
||||
|
||||
rtl8169_print_mac_version(tp);
|
||||
|
||||
|
|
@ -3940,6 +4135,12 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
|
|||
netif_info(tp, probe, dev, "%s at 0x%lx, %pM, XID %08x IRQ %d\n",
|
||||
rtl_chip_infos[chipset].name, dev->base_addr, dev->dev_addr,
|
||||
(u32)(RTL_R32(TxConfig) & 0x9cf0f8ff), dev->irq);
|
||||
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,
|
||||
rtl_chip_infos[chipset].jumbo_tx_csum ? "ok" : "ko");
|
||||
}
|
||||
|
||||
if (tp->mac_version == RTL_GIGA_MAC_VER_27 ||
|
||||
tp->mac_version == RTL_GIGA_MAC_VER_28 ||
|
||||
|
|
@ -4296,19 +4497,6 @@ static void rtl_hw_start_8169(struct net_device *dev)
|
|||
RTL_W16(IntrMask, tp->intr_event);
|
||||
}
|
||||
|
||||
static void rtl_tx_performance_tweak(struct pci_dev *pdev, u16 force)
|
||||
{
|
||||
int cap = pci_pcie_cap(pdev);
|
||||
|
||||
if (cap) {
|
||||
u16 ctl;
|
||||
|
||||
pci_read_config_word(pdev, cap + PCI_EXP_DEVCTL, &ctl);
|
||||
ctl = (ctl & ~PCI_EXP_DEVCTL_READRQ) | force;
|
||||
pci_write_config_word(pdev, cap + PCI_EXP_DEVCTL, ctl);
|
||||
}
|
||||
}
|
||||
|
||||
static void rtl_csi_access_enable(void __iomem *ioaddr, u32 bits)
|
||||
{
|
||||
u32 csi;
|
||||
|
|
@ -4936,9 +5124,17 @@ static void rtl_hw_start_8101(struct net_device *dev)
|
|||
|
||||
static int rtl8169_change_mtu(struct net_device *dev, int new_mtu)
|
||||
{
|
||||
if (new_mtu < ETH_ZLEN || new_mtu > SafeMtu)
|
||||
struct rtl8169_private *tp = netdev_priv(dev);
|
||||
|
||||
if (new_mtu < ETH_ZLEN ||
|
||||
new_mtu > rtl_chip_infos[tp->mac_version].jumbo_max)
|
||||
return -EINVAL;
|
||||
|
||||
if (new_mtu > ETH_DATA_LEN)
|
||||
rtl_hw_jumbo_enable(tp);
|
||||
else
|
||||
rtl_hw_jumbo_disable(tp);
|
||||
|
||||
dev->mtu = new_mtu;
|
||||
netdev_update_features(dev);
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue