ixgbe: Add I2C bus mux support

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Take control of an I2C mux that selects which SFP is attached to
the I2C bus. The control of the mux is captured in the taking and
releasing of the related semaphore. Because only port 1 can control
the mux, port 1 always leaves the mux set to select port 0.

Signed-off-by: Mark Rustad <mark.d.rustad@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

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Mark Rustad 2015-08-08 16:18:53 -07:00 • committed by Jeff Kirsher

parent 58e7cd24d4

commit 449e21a924

3 changed files with 122 additions and 39 deletions

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1

drivers/net/ethernet/intel/ixgbe/ixgbe_type.h

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97

drivers/net/ethernet/intel/ixgbe/ixgbe_x540.c

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63

drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c

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