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Date: Tue, 30 Dec 2014 11:26:04 -0800 From: Jeff Kirsher <jeffrey.t.kirsher@...el.com> To: Vlad Zolotarov <vladz@...udius-systems.com> Cc: netdev <netdev@...r.kernel.org>, Gleb Natapov <gleb@...udius-systems.com>, Avi Kivity <avi@...udius-systems.com> Subject: Re: [RFC PATCH net-next 4/5] ixgbevf: Add RSS Key query code On Tue, Dec 30, 2014 at 8:30 AM, Vlad Zolotarov <vladz@...udius-systems.com> wrote: > Signed-off-by: Vlad Zolotarov <vladz@...udius-systems.com> > --- > drivers/net/ethernet/intel/ixgbevf/mbx.h | 2 ++ > drivers/net/ethernet/intel/ixgbevf/vf.c | 48 ++++++++++++++++++++++++++++++++ > drivers/net/ethernet/intel/ixgbevf/vf.h | 1 + > 3 files changed, 51 insertions(+) > > diff --git a/drivers/net/ethernet/intel/ixgbevf/mbx.h b/drivers/net/ethernet/intel/ixgbevf/mbx.h > index 3e148a8..9674ac8 100644 > --- a/drivers/net/ethernet/intel/ixgbevf/mbx.h > +++ b/drivers/net/ethernet/intel/ixgbevf/mbx.h > @@ -110,6 +110,8 @@ 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 hash 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/ixgbevf/vf.c b/drivers/net/ethernet/intel/ixgbevf/vf.c > index 3ebc882..7987ab0 100644 > --- a/drivers/net/ethernet/intel/ixgbevf/vf.c > +++ b/drivers/net/ethernet/intel/ixgbevf/vf.c > @@ -290,6 +290,54 @@ static inline int _ixgbevf_get_reta(struct ixgbe_hw *hw, u32 *msgbuf, > } > > /** > + * ixgbevf_get_rss_key - get the RSS Random Key > + * @hw: pointer to the HW structure > + * @reta: buffer to fill with RETA contents. > + * > + * The "rss_key" buffer should be big enough to contain 10 registers. > + * > + * Returns: 0 on success. > + * if API doesn't support this operation - (-EPERM). > + */ > +int ixgbevf_get_rss_key(struct ixgbe_hw *hw, u8 *rss_key) > +{ > + int err; > + u32 msgbuf[IXGBE_VFMAILBOX_SIZE]; > + > + /* Return and error if API doesn't support RSS Random Key retrieval */ > + switch (hw->api_version) { > + case ixgbe_mbox_api_12: > + break; > + default: > + return -EPERM; > + } An if statement here as well, instead of a switch statement. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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