diff options
| author | Jakub Kicinski | 2018-11-20 00:21:48 +0100 |
|---|---|---|
| committer | David S. Miller | 2018-11-20 03:53:46 +0100 |
| commit | 6a80240571800ba4ea2487f0531553424b6922e0 (patch) | |
| tree | 651b55aece2c8b87c0b64010e5a74c36024b1a04 /drivers/net/ethernet/netronome/nfp/abm | |
| parent | nfp: abm: calculate PRIO map len and check mailbox size (diff) | |
| download | kernel-qcow2-linux-6a80240571800ba4ea2487f0531553424b6922e0.tar.gz kernel-qcow2-linux-6a80240571800ba4ea2487f0531553424b6922e0.tar.xz kernel-qcow2-linux-6a80240571800ba4ea2487f0531553424b6922e0.zip | |
nfp: abm: add functions to update DSCP -> virtual queue map
Learn how to set the DSCP map. FW uses a packed array which
geometry depends on the number of supported priorities and
virtual queues. Write code to assemble this map and to communicate
the setting to the FW via mailbox.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: John Hurley <john.hurley@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/netronome/nfp/abm')
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/abm/ctrl.c | 23 | ||||
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/abm/main.h | 1 |
2 files changed, 24 insertions, 0 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/abm/ctrl.c b/drivers/net/ethernet/netronome/nfp/abm/ctrl.c index ef10a2e730bc..77dbc509a637 100644 --- a/drivers/net/ethernet/netronome/nfp/abm/ctrl.c +++ b/drivers/net/ethernet/netronome/nfp/abm/ctrl.c @@ -1,6 +1,7 @@ // SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) /* Copyright (C) 2018 Netronome Systems, Inc. */ +#include <linux/bitops.h> #include <linux/kernel.h> #include <linux/log2.h> @@ -221,6 +222,28 @@ int nfp_abm_ctrl_qm_disable(struct nfp_abm *abm) NULL, 0, NULL, 0); } +int nfp_abm_ctrl_prio_map_update(struct nfp_abm_link *alink, u32 *packed) +{ + struct nfp_net *nn = alink->vnic; + unsigned int i; + int err; + + /* Write data_len and wipe reserved */ + nn_writeq(nn, nn->tlv_caps.mbox_off + NFP_NET_ABM_MBOX_DATALEN, + alink->abm->prio_map_len); + + for (i = 0; i < alink->abm->prio_map_len; i += sizeof(u32)) + nn_writel(nn, nn->tlv_caps.mbox_off + NFP_NET_ABM_MBOX_DATA + i, + packed[i / sizeof(u32)]); + + err = nfp_net_reconfig_mbox(nn, + NFP_NET_CFG_MBOX_CMD_PCI_DSCP_PRIOMAP_SET); + if (err) + nfp_err(alink->abm->app->cpp, + "setting DSCP -> VQ map failed with error %d\n", err); + return err; +} + static int nfp_abm_ctrl_prio_check_params(struct nfp_abm_link *alink) { struct nfp_abm *abm = alink->abm; diff --git a/drivers/net/ethernet/netronome/nfp/abm/main.h b/drivers/net/ethernet/netronome/nfp/abm/main.h index 1ca2768cd5a2..bc378b464f2c 100644 --- a/drivers/net/ethernet/netronome/nfp/abm/main.h +++ b/drivers/net/ethernet/netronome/nfp/abm/main.h @@ -220,4 +220,5 @@ u64 nfp_abm_ctrl_stat_non_sto(struct nfp_abm_link *alink, unsigned int i); u64 nfp_abm_ctrl_stat_sto(struct nfp_abm_link *alink, unsigned int i); int nfp_abm_ctrl_qm_enable(struct nfp_abm *abm); int nfp_abm_ctrl_qm_disable(struct nfp_abm *abm); +int nfp_abm_ctrl_prio_map_update(struct nfp_abm_link *alink, u32 *packed); #endif |