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octeontx2-af: Add mbox to retrieve bandwidth profile free count

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Added mbox for PF/VF drivers to retrieve current ingress bandwidth
profile free count. Also added current policer timeunit
configuration info based on which ratelimiting decisions can be
taken by PF/VF drivers.

Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sunil Goutham 2021-08-25 17:48:46 +05:30 committed by David S. Miller
parent 18603683d7
commit 66c312ea1d
2 changed files with 42 additions and 1 deletions
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10
drivers/net/ethernet/marvell/octeontx2/af/mbox.h
View File

@ -279,7 +279,9 @@ M(NIX_GET_HW_INFO, 0x801c, nix_get_hw_info, msg_req, nix_hw_info) \
M(NIX_BANDPROF_ALLOC, 0x801d, nix_bandprof_alloc, nix_bandprof_alloc_req, \
nix_bandprof_alloc_rsp) \
M(NIX_BANDPROF_FREE, 0x801e, nix_bandprof_free, nix_bandprof_free_req, \
msg_rsp)
msg_rsp) \
M(NIX_BANDPROF_GET_HWINFO, 0x801f, nix_bandprof_get_hwinfo, msg_req, \
nix_bandprof_get_hwinfo_rsp)
/* Messages initiated by AF (range 0xC00 - 0xDFF) */
#define MBOX_UP_CGX_MESSAGES \
@ -1101,6 +1103,12 @@ struct nix_bandprof_free_req {
u16 prof_idx[BAND_PROF_NUM_LAYERS][MAX_BANDPROF_PER_PFFUNC];
};
struct nix_bandprof_get_hwinfo_rsp {
struct mbox_msghdr hdr;
u16 prof_count[BAND_PROF_NUM_LAYERS];
u32 policer_timeunit;
};
/* NPC mbox message structs */
#define NPC_MCAM_ENTRY_INVALID 0xFFFF

33
drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
View File

@ -5173,3 +5173,36 @@ static void nix_clear_ratelimit_aggr(struct rvu *rvu, struct nix_hw *nix_hw,
rvu_free_rsrc(&ipolicer->band_prof, mid_prof);
}
}
int rvu_mbox_handler_nix_bandprof_get_hwinfo(struct rvu *rvu, struct msg_req *req,
struct nix_bandprof_get_hwinfo_rsp *rsp)
{
struct nix_ipolicer *ipolicer;
int blkaddr, layer, err;
struct nix_hw *nix_hw;
u64 tu;
if (!rvu->hw->cap.ipolicer)
return NIX_AF_ERR_IPOLICER_NOTSUPP;
err = nix_get_struct_ptrs(rvu, req->hdr.pcifunc, &nix_hw, &blkaddr);
if (err)
return err;
/* Return number of bandwidth profiles free at each layer */
mutex_lock(&rvu->rsrc_lock);
for (layer = 0; layer < BAND_PROF_NUM_LAYERS; layer++) {
if (layer == BAND_PROF_INVAL_LAYER)
continue;
ipolicer = &nix_hw->ipolicer[layer];
rsp->prof_count[layer] = rvu_rsrc_free_count(&ipolicer->band_prof);
}
mutex_unlock(&rvu->rsrc_lock);
/* Set the policer timeunit in nanosec */
tu = rvu_read64(rvu, blkaddr, NIX_AF_PL_TS) & GENMASK_ULL(9, 0);
rsp->policer_timeunit = (tu + 1) * 100;
return 0;
}