diff options
| author | Jakub Kicinski | 2018-01-18 03:51:03 +0100 |
|---|---|---|
| committer | David S. Miller | 2018-01-19 21:44:18 +0100 |
| commit | 527d7d1b9949e04a36fed971adc790641f13c927 (patch) | |
| tree | 7b9f9f2d42a5ba0996eff8c76fe33d5b234cb890 /drivers/net/ethernet/netronome/nfp/nfp_net_ctrl.c | |
| parent | nfp: read ME frequency from vNIC ctrl memory (diff) | |
| download | kernel-qcow2-linux-527d7d1b9949e04a36fed971adc790641f13c927.tar.gz kernel-qcow2-linux-527d7d1b9949e04a36fed971adc790641f13c927.tar.xz kernel-qcow2-linux-527d7d1b9949e04a36fed971adc790641f13c927.zip | |
nfp: read mailbox address from TLV caps
Allow specifying alternative vNIC mailbox location in TLV caps.
This way we can size the mailbox to the needs and not necessarily
waste 512B of ctrl memory space.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/netronome/nfp/nfp_net_ctrl.c')
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/nfp_net_ctrl.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_ctrl.c b/drivers/net/ethernet/netronome/nfp/nfp_net_ctrl.c index 72da1b352418..ffb402746ad4 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net_ctrl.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_ctrl.c @@ -43,6 +43,8 @@ static void nfp_net_tlv_caps_reset(struct nfp_net_tlv_caps *caps) { memset(caps, 0, sizeof(*caps)); caps->me_freq_mhz = 1200; + caps->mbox_off = NFP_NET_CFG_MBOX_BASE; + caps->mbox_len = NFP_NET_CFG_MBOX_VAL_MAX_SZ; } int nfp_net_tlv_caps_parse(struct device *dev, u8 __iomem *ctrl_mem, @@ -102,6 +104,15 @@ int nfp_net_tlv_caps_parse(struct device *dev, u8 __iomem *ctrl_mem, caps->me_freq_mhz = readl(data); break; + case NFP_NET_CFG_TLV_TYPE_MBOX: + if (!length) { + caps->mbox_off = 0; + caps->mbox_len = 0; + } else { + caps->mbox_off = data - ctrl_mem; + caps->mbox_len = length; + } + break; default: if (!FIELD_GET(NFP_NET_CFG_TLV_HEADER_REQUIRED, hdr)) break; |