[04/14] r8169: shuffle some registers handling around (8168 operation only)

Submitted by fran├žois romieu on Oct. 10, 2008, 9:41 p.m.

Details

Message ID 20081010214105.GD27195@electric-eye.fr.zoreil.com
State Accepted
Delegated to: David Miller
Headers show

Commit Message

fran├žois romieu Oct. 10, 2008, 9:41 p.m.
I can not argue strongly for (or against) a specific ordering
on a purely technical ground but the patch avoids to swallow
Realtek's changes in one big, hard-to-read gulp.

Let aside the way the RxConfig register is written (see
rtl_set_rx_tx_config_registers / RxConfig / rtl_set_rx_mode),
this change brings the registers write ordering closer with
Realtek's driver one (version 8.006.00) for the 8168 chipsets.

More 8168 specific code which touches the Configx registers will
be added in the section covered by Cfg9346_UnLock / Cfg9346_Lock.

This code should not be the cause of regression for 810x and
8110 users.

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Edward Hsu <edward_hsu@realtek.com.tw>
---
 drivers/net/r8169.c |   13 +++++++------
 1 files changed, 7 insertions(+), 6 deletions(-)

Patch hide | download patch | download mbox

diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c
index 8086bac..273afb5 100644
--- a/drivers/net/r8169.c
+++ b/drivers/net/r8169.c
@@ -2396,14 +2396,10 @@  static void rtl_hw_start_8168(struct net_device *dev)
 
 	rtl_set_rx_max_size(ioaddr);
 
-	rtl_set_rx_tx_config_registers(tp);
-
 	tp->cp_cmd |= RTL_R16(CPlusCmd) | PktCntrDisable | INTT_1;
 
 	RTL_W16(CPlusCmd, tp->cp_cmd);
 
-	rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
-
 	RTL_W16(IntrMitigate, 0x5151);
 
 	/* Work around for RxFIFO overflow. */
@@ -2414,14 +2410,19 @@  static void rtl_hw_start_8168(struct net_device *dev)
 
 	rtl_set_rx_tx_desc_registers(tp, ioaddr);
 
-	RTL_W8(Cfg9346, Cfg9346_Lock);
+	rtl_set_rx_mode(dev);
+
+	RTL_W32(TxConfig, (TX_DMA_BURST << TxDMAShift) |
+		(InterFrameGap << TxInterFrameGapShift));
 
 	RTL_R8(IntrMask);
 
-	rtl_set_rx_mode(dev);
+	rtl_tx_performance_tweak(pdev, 0x5 << MAX_READ_REQUEST_SHIFT);
 
 	RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
 
+	RTL_W8(Cfg9346, Cfg9346_Lock);
+
 	RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xF000);
 
 	RTL_W16(IntrMask, tp->intr_event);