e1000e: increase Rx PBA to prevent dropping received packets on 82566/82567

During bi-directional stress on some 82566/82567 devices, some received
packets were dropped.  Increasing the Receive Packet Buffer Allocation
resolves this.

(cherry picked from commit 7f1557e1422a4cc842af641c6716714751c06865)
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>

diff --git a/drivers/net/e1000e/ich8lan.c b/drivers/net/e1000e/ich8lan.c
index 99b9d88237543bc35e38bbb88d9e44a8f456046e..8205b4fe45a6eb506db973df47b85fdf90372cd0 100644 (file)
--- a/drivers/net/e1000e/ich8lan.c
+++ b/drivers/net/e1000e/ich8lan.c
@@ -4101,7 +4101,7 @@ struct e1000_info e1000_ich9_info = {
                                  | FLAG_HAS_AMT
                                  | FLAG_HAS_FLASH
                                  | FLAG_APME_IN_WUC,
-       .pba                    = 10,
+       .pba                    = 18,
        .max_hw_frame_size      = DEFAULT_JUMBO,
        .get_variants           = e1000_get_variants_ich8lan,
        .mac_ops                = &ich8_mac_ops,
@@ -4118,7 +4118,7 @@ struct e1000_info e1000_ich10_info = {
                                  | FLAG_HAS_AMT
                                  | FLAG_HAS_FLASH
                                  | FLAG_APME_IN_WUC,
-       .pba                    = 10,
+       .pba                    = 18,
        .max_hw_frame_size      = DEFAULT_JUMBO,
        .get_variants           = e1000_get_variants_ich8lan,
        .mac_ops                = &ich8_mac_ops,