[RFC PATCH net-next 3/5] ixgbe: Add GET_RSS_KEY command to VF-PF channel commands set
From: Vlad Zolotarov <hidden>
Date: 2014-12-30 16:37:23
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
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> --- drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.h | 2 ++ drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c | 25 +++++++++++++++++++++++++ 2 files changed, 27 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 84db1a5..fc8233e 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c@@ -970,6 +970,28 @@ 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 */ + switch (adapter->vfinfo[vf].vf_api) { + case ixgbe_mbox_api_12: + break; + default: + 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;
@@ -1035,6 +1057,9 @@ 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;
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2.1.0