diff options
| author |   Michael Chan <mchan@broadcom.com> | 2015-12-27 18:19:27 -0500 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2015-12-28 00:57:28 -0500 |
| commit | b72d4a68c443e29cb59e15a1a9b2c2f4bf802831 (patch) | |
| tree | 8f311557800a7044893c019cc3c66f5659b161f3 /drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c | |
| parent | bnxt_en: Improve VF resource accounting. (diff) | |
| download | linux-dev-b72d4a68c443e29cb59e15a1a9b2c2f4bf802831.tar.xz linux-dev-b72d4a68c443e29cb59e15a1a9b2c2f4bf802831.zip | |
bnxt_en: Keep track of the ring group resource.
Newer firmware will return the ring group resource when we call
hwrm_func_qcaps(). To be compatible with older firmware, use the
number of tx rings as the number of ring groups if the older firmware
returns 0. When determining how many rx rings we can support, take
the ring group resource in account as well in _bnxt_get_max_rings().
Divide and assign the ring groups to VFs.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c')
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c index 44673e64c652..79b48e490de8 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c @@ -367,6 +367,7 @@ static int bnxt_hwrm_func_cfg(struct bnxt *bp, int num_vfs) { u32 rc = 0, mtu, i; u16 vf_tx_rings, vf_rx_rings, vf_cp_rings, vf_stat_ctx, vf_vnics; + u16 vf_ring_grps; struct hwrm_func_cfg_input req = {0}; struct bnxt_pf_info *pf = &bp->pf; @@ -388,6 +389,7 @@ static int bnxt_hwrm_func_cfg(struct bnxt *bp, int num_vfs) num_vfs; else vf_rx_rings = (pf->max_rx_rings - bp->rx_nr_rings) / num_vfs; + vf_ring_grps = (bp->pf.max_hw_ring_grps - bp->rx_nr_rings) / num_vfs; vf_tx_rings = (pf->max_tx_rings - bp->tx_nr_rings) / num_vfs; req.enables = cpu_to_le32(FUNC_CFG_REQ_ENABLES_MTU | @@ -398,7 +400,8 @@ static int bnxt_hwrm_func_cfg(struct bnxt *bp, int num_vfs) FUNC_CFG_REQ_ENABLES_NUM_TX_RINGS | FUNC_CFG_REQ_ENABLES_NUM_RX_RINGS | FUNC_CFG_REQ_ENABLES_NUM_L2_CTXS | - FUNC_CFG_REQ_ENABLES_NUM_VNICS); + FUNC_CFG_REQ_ENABLES_NUM_VNICS | + FUNC_CFG_REQ_ENABLES_NUM_HW_RING_GRPS); mtu = bp->dev->mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN; req.mru = cpu_to_le16(mtu); @@ -408,6 +411,7 @@ static int bnxt_hwrm_func_cfg(struct bnxt *bp, int num_vfs) req.num_cmpl_rings = cpu_to_le16(vf_cp_rings); req.num_tx_rings = cpu_to_le16(vf_tx_rings); req.num_rx_rings = cpu_to_le16(vf_rx_rings); + req.num_hw_ring_grps = cpu_to_le16(vf_ring_grps); req.num_l2_ctxs = cpu_to_le16(4); vf_vnics = 1; @@ -429,6 +433,7 @@ static int bnxt_hwrm_func_cfg(struct bnxt *bp, int num_vfs) if (!rc) { pf->max_tx_rings -= vf_tx_rings * num_vfs; pf->max_rx_rings -= vf_rx_rings * num_vfs; + pf->max_hw_ring_grps -= vf_ring_grps * num_vfs; pf->max_cp_rings -= vf_cp_rings * num_vfs; pf->max_rsscos_ctxs -= num_vfs; pf->max_stat_ctxs -= vf_stat_ctx * num_vfs; |