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ixgb: make sure jumbos stay enabled after reset

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Currently a device reset (ethtool -r ethX) would cause the
adapter to fall back to regular MTU sizes.

Signed-off-by: Matheos Worku <matheos.worku@sun.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Matheos Worku 2007-12-14 11:48:29 -08:00 • committed by Jeff Garzik
parent 470738758d
commit 3fd7131fea
1 changed files with 14 additions and 2 deletions
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16
drivers/net/ixgb/ixgb_main.c
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@ -320,10 +320,22 @@ ixgb_down(struct ixgb_adapter *adapter, boolean_t kill_watchdog)
void void
ixgb_reset(struct ixgb_adapter *adapter) ixgb_reset(struct ixgb_adapter *adapter)
{ {
struct ixgb_hw *hw = &adapter->hw;
ixgb_adapter_stop(&adapter->hw); ixgb_adapter_stop(hw);
if(!ixgb_init_hw(&adapter->hw)) if (!ixgb_init_hw(hw))
DPRINTK(PROBE, ERR, "ixgb_init_hw failed.\n"); DPRINTK(PROBE, ERR, "ixgb_init_hw failed.\n");
/* restore frame size information */
IXGB_WRITE_REG(hw, MFS, hw->max_frame_size << IXGB_MFS_SHIFT);
if (hw->max_frame_size >
IXGB_MAX_ENET_FRAME_SIZE_WITHOUT_FCS + ENET_FCS_LENGTH) {
u32 ctrl0 = IXGB_READ_REG(hw, CTRL0);
if (!(ctrl0 & IXGB_CTRL0_JFE)) {
ctrl0 |= IXGB_CTRL0_JFE;
IXGB_WRITE_REG(hw, CTRL0, ctrl0);
}
}
} }
/** /**