diff options
| author |   Jakub Kicinski <jakub.kicinski@netronome.com> | 2017-11-04 16:48:55 +0100 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2017-11-05 23:23:26 +0900 |
| commit | 7717c319d8c025aba426f10f41a9d7f9ea8af192 (patch) | |
| tree | 2664941fae0ecbedc906137e54e15823e2971fa1 /drivers/net/ethernet/netronome/nfp/nfp_main.c | |
| parent | nfp: don't depend on compiler constant propagation (diff) | |
| download | linux-dev-7717c319d8c025aba426f10f41a9d7f9ea8af192.tar.xz linux-dev-7717c319d8c025aba426f10f41a9d7f9ea8af192.zip | |
nfp: make use of MAC reinit
Recent management FW images can perform full reinit of MAC cores
without requiring a reboot. When loading the driver check if there
are changes pending and if so call NSP MAC reinit. Full application
FW reload is still required, and all MACs need to be reinited at the
same time (not only the ones which have been reconfigured, and thus
potentially causing disruption to unrelated netdevs) therefore for
now changing MAC config without reloading the driver still remains
future work.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Tested-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/netronome/nfp/nfp_main.c')
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/nfp_main.c | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_main.c b/drivers/net/ethernet/netronome/nfp/nfp_main.c index f8fa63b66739..35eaccbece36 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_main.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_main.c @@ -346,6 +346,32 @@ exit_release_fw: return err < 0 ? err : 1; } +static void +nfp_nsp_init_ports(struct pci_dev *pdev, struct nfp_pf *pf, + struct nfp_nsp *nsp) +{ + bool needs_reinit = false; + int i; + + pf->eth_tbl = __nfp_eth_read_ports(pf->cpp, nsp); + if (!pf->eth_tbl) + return; + + if (!nfp_nsp_has_mac_reinit(nsp)) + return; + + for (i = 0; i < pf->eth_tbl->count; i++) + needs_reinit |= pf->eth_tbl->ports[i].override_changed; + if (!needs_reinit) + return; + + kfree(pf->eth_tbl); + if (nfp_nsp_mac_reinit(nsp)) + dev_warn(&pdev->dev, "MAC reinit failed\n"); + + pf->eth_tbl = __nfp_eth_read_ports(pf->cpp, nsp); +} + static int nfp_nsp_init(struct pci_dev *pdev, struct nfp_pf *pf) { struct nfp_nsp *nsp; @@ -366,7 +392,7 @@ static int nfp_nsp_init(struct pci_dev *pdev, struct nfp_pf *pf) if (err < 0) goto exit_close_nsp; - pf->eth_tbl = __nfp_eth_read_ports(pf->cpp, nsp); + nfp_nsp_init_ports(pdev, pf, nsp); pf->nspi = __nfp_nsp_identify(nsp); if (pf->nspi) |