[PATCH net-next v2 3/5] ixgbe: Add GET_RSS_KEY command to VF-PF channel commands set
STALE4292d
From: Vlad Zolotarov <hidden>
Date: 2014-12-31 17:40:57
Subsystem:
intel ethernet drivers, networking drivers, the rest · Maintainers:
Tony Nguyen, Przemek Kitszel, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Revision v2 of 9 in this series.
Revisions (9)
82599 VFs and PF share the same RSS Key. Therefore we will return
the same RSS key for all VFs.
Signed-off-by: Vlad Zolotarov <redacted>
---
New in v1 (compared to RFC):
- Use "if-else" statement instead of a "switch-case" for a single option case
(in ixgbe_get_vf_rss_key()).
---
drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.h | 2 ++
drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c | 21 +++++++++++++++++++++
2 files changed, 23 insertions(+)
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.h
index c1123d9..52e775b 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.h@@ -97,6 +97,8 @@ enum ixgbe_pfvf_api_rev { #define IXGBE_VF_GET_RETA_1 0x0b /* get RETA[12..23] */ #define IXGBE_VF_GET_RETA_2 0x0c /* get RETA[24..31] */ +#define IXGBE_VF_GET_RSS_KEY 0x0d /* get RSS key */ + /* GET_QUEUES return data indices within the mailbox */ #define IXGBE_VF_TX_QUEUES 1 /* number of Tx queues supported */ #define IXGBE_VF_RX_QUEUES 2 /* number of Rx queues supported */
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
index b1625c8..d79415e 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c@@ -966,6 +966,24 @@ static int ixgbe_get_vf_reta(struct ixgbe_adapter *adapter, return 0; } +static int ixgbe_get_vf_rss_key(struct ixgbe_adapter *adapter, + u32 *msgbuf, u32 vf) +{ + struct ixgbe_hw *hw = &adapter->hw; + int i; + u32 *rss_key = &msgbuf[1]; + + /* verify the PF is supporting the correct API */ + if (adapter->vfinfo[vf].vf_api != ixgbe_mbox_api_12) + return -EPERM; + + /* Read the RSS KEY */ + for (i = 0; i < 10; i++) + rss_key[i] = IXGBE_READ_REG(hw, IXGBE_RSSRK(i)); + + return 0; +} + static int ixgbe_rcv_msg_from_vf(struct ixgbe_adapter *adapter, u32 vf) { u32 mbx_size = IXGBE_VFMAILBOX_SIZE;
@@ -1031,6 +1049,9 @@ static int ixgbe_rcv_msg_from_vf(struct ixgbe_adapter *adapter, u32 vf) case IXGBE_VF_GET_RETA_2: retval = ixgbe_get_vf_reta(adapter, msgbuf, vf, 24, 8); break; + case IXGBE_VF_GET_RSS_KEY: + retval = ixgbe_get_vf_rss_key(adapter, msgbuf, vf); + break; default: e_err(drv, "Unhandled Msg %8.8x\n", msgbuf[0]); retval = IXGBE_ERR_MBX;
--
2.1.0