RDMA/nes: Set trace length to 1 inch for SFP_D

With updated PHY firmware for SFP_D, setting the trace length to 1
inch for SFP_D provides a more stable link.

Signed-off-by: Chien Tung <chien.tin.tung@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

diff --git a/drivers/infiniband/hw/nes/nes_hw.c b/drivers/infiniband/hw/nes/nes_hw.c
index 2aa021655e33248e2ee1e05e51c6e8d311174faa..b832a7b814a243f87ae89f7fe104926ed9b8ccfd 100644 (file)
--- a/drivers/infiniband/hw/nes/nes_hw.c
+++ b/drivers/infiniband/hw/nes/nes_hw.c
@@ -1371,13 +1371,14 @@ int nes_init_phy(struct nes_device *nesdev)
                if (phy_type == NES_PHY_TYPE_ARGUS) {
                        nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc302, 0x000C);
                        nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc319, 0x0008);
+                       nes_write_10G_phy_reg(nesdev, phy_index, 0x3, 0x0027, 0x0001);
                } else {
                        nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc302, 0x0004);
                        nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc319, 0x0038);
+                       nes_write_10G_phy_reg(nesdev, phy_index, 0x3, 0x0027, 0x0013);
                }
                nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc31a, 0x0098);
                nes_write_10G_phy_reg(nesdev, phy_index, 0x3, 0x0026, 0x0E00);
-               nes_write_10G_phy_reg(nesdev, phy_index, 0x3, 0x0027, 0x0001);
 
                /* setup LEDs */
                nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xd006, 0x0007);