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octeontx2-af: Add free rsrc count mbox msg

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Upon receiving the MBOX_MSG_FREE_RSRC_CNT, the AF will find out the
current number of free resources and reply it back to the requester. No
guarantee is given on the future state of the free resources yet.
If another requester sends MBOX_MSG_ATTACH_RESOURCES after this call,
the number of available resources might change.

Signed-off-by: George Cherian <george.cherian@marvell.com>
Signed-off-by: Stanislaw Kardach <skardach@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
George Cherian 2021-08-25 17:48:43 +05:30 committed by David S. Miller
parent fe1939bb23
commit 275e5d175d
2 changed files with 113 additions and 0 deletions
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20
drivers/net/ethernet/marvell/octeontx2/af/mbox.h
View File

@ -130,6 +130,7 @@ static inline struct mbox_msghdr *otx2_mbox_alloc_msg(struct otx2_mbox *mbox,
M(READY, 0x001, ready, msg_req, ready_msg_rsp) \
M(ATTACH_RESOURCES, 0x002, attach_resources, rsrc_attach, msg_rsp) \
M(DETACH_RESOURCES, 0x003, detach_resources, rsrc_detach, msg_rsp) \
M(FREE_RSRC_CNT, 0x004, free_rsrc_cnt, msg_req, free_rsrcs_rsp) \
M(MSIX_OFFSET, 0x005, msix_offset, msg_req, msix_offset_rsp) \
M(VF_FLR, 0x006, vf_flr, msg_req, msg_rsp) \
M(PTP_OP, 0x007, ptp_op, ptp_req, ptp_rsp) \
@ -367,6 +368,25 @@ struct rsrc_detach {
u8 cptlfs:1;
};
/* Number of resources available to the caller.
* In reply to MBOX_MSG_FREE_RSRC_CNT.
*/
struct free_rsrcs_rsp {
struct mbox_msghdr hdr;
u16 schq[NIX_TXSCH_LVL_CNT];
u16 sso;
u16 tim;
u16 ssow;
u16 cpt;
u8 npa;
u8 nix;
u16 schq_nix1[NIX_TXSCH_LVL_CNT];
u8 nix1;
u8 cpt1;
u8 ree0;
u8 ree1;
};
#define MSIX_VECTOR_INVALID 0xFFFF
#define MAX_RVU_BLKLF_CNT 256

93
drivers/net/ethernet/marvell/octeontx2/af/rvu.c
View File

@ -1796,6 +1796,99 @@ int rvu_mbox_handler_msix_offset(struct rvu *rvu, struct msg_req *req,
return 0;
}
int rvu_mbox_handler_free_rsrc_cnt(struct rvu *rvu, struct msg_req *req,
struct free_rsrcs_rsp *rsp)
{
struct rvu_hwinfo *hw = rvu->hw;
struct rvu_block *block;
struct nix_txsch *txsch;
struct nix_hw *nix_hw;
mutex_lock(&rvu->rsrc_lock);
block = &hw->block[BLKADDR_NPA];
rsp->npa = rvu_rsrc_free_count(&block->lf);
block = &hw->block[BLKADDR_NIX0];
rsp->nix = rvu_rsrc_free_count(&block->lf);
block = &hw->block[BLKADDR_NIX1];
rsp->nix1 = rvu_rsrc_free_count(&block->lf);
block = &hw->block[BLKADDR_SSO];
rsp->sso = rvu_rsrc_free_count(&block->lf);
block = &hw->block[BLKADDR_SSOW];
rsp->ssow = rvu_rsrc_free_count(&block->lf);
block = &hw->block[BLKADDR_TIM];
rsp->tim = rvu_rsrc_free_count(&block->lf);
block = &hw->block[BLKADDR_CPT0];
rsp->cpt = rvu_rsrc_free_count(&block->lf);
block = &hw->block[BLKADDR_CPT1];
rsp->cpt1 = rvu_rsrc_free_count(&block->lf);
if (rvu->hw->cap.nix_fixed_txschq_mapping) {
rsp->schq[NIX_TXSCH_LVL_SMQ] = 1;
rsp->schq[NIX_TXSCH_LVL_TL4] = 1;
rsp->schq[NIX_TXSCH_LVL_TL3] = 1;
rsp->schq[NIX_TXSCH_LVL_TL2] = 1;
/* NIX1 */
if (!is_block_implemented(rvu->hw, BLKADDR_NIX1))
goto out;
rsp->schq_nix1[NIX_TXSCH_LVL_SMQ] = 1;
rsp->schq_nix1[NIX_TXSCH_LVL_TL4] = 1;
rsp->schq_nix1[NIX_TXSCH_LVL_TL3] = 1;
rsp->schq_nix1[NIX_TXSCH_LVL_TL2] = 1;
} else {
nix_hw = get_nix_hw(hw, BLKADDR_NIX0);
txsch = &nix_hw->txsch[NIX_TXSCH_LVL_SMQ];
rsp->schq[NIX_TXSCH_LVL_SMQ] =
rvu_rsrc_free_count(&txsch->schq);
txsch = &nix_hw->txsch[NIX_TXSCH_LVL_TL4];
rsp->schq[NIX_TXSCH_LVL_TL4] =
rvu_rsrc_free_count(&txsch->schq);
txsch = &nix_hw->txsch[NIX_TXSCH_LVL_TL3];
rsp->schq[NIX_TXSCH_LVL_TL3] =
rvu_rsrc_free_count(&txsch->schq);
txsch = &nix_hw->txsch[NIX_TXSCH_LVL_TL2];
rsp->schq[NIX_TXSCH_LVL_TL2] =
rvu_rsrc_free_count(&txsch->schq);
if (!is_block_implemented(rvu->hw, BLKADDR_NIX1))
goto out;
nix_hw = get_nix_hw(hw, BLKADDR_NIX1);
txsch = &nix_hw->txsch[NIX_TXSCH_LVL_SMQ];
rsp->schq_nix1[NIX_TXSCH_LVL_SMQ] =
rvu_rsrc_free_count(&txsch->schq);
txsch = &nix_hw->txsch[NIX_TXSCH_LVL_TL4];
rsp->schq_nix1[NIX_TXSCH_LVL_TL4] =
rvu_rsrc_free_count(&txsch->schq);
txsch = &nix_hw->txsch[NIX_TXSCH_LVL_TL3];
rsp->schq_nix1[NIX_TXSCH_LVL_TL3] =
rvu_rsrc_free_count(&txsch->schq);
txsch = &nix_hw->txsch[NIX_TXSCH_LVL_TL2];
rsp->schq_nix1[NIX_TXSCH_LVL_TL2] =
rvu_rsrc_free_count(&txsch->schq);
}
rsp->schq_nix1[NIX_TXSCH_LVL_TL1] = 1;
out:
rsp->schq[NIX_TXSCH_LVL_TL1] = 1;
mutex_unlock(&rvu->rsrc_lock);
return 0;
}
int rvu_mbox_handler_vf_flr(struct rvu *rvu, struct msg_req *req,
struct msg_rsp *rsp)
{