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Commit 34425e8c authored by Kiran Kumar's avatar Kiran Kumar Committed by David S. Miller
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octeontx2-af: Support to get NIX HW constants from AF 



This patch adds reading HW limits like number of Rx/Tx stats,
number of queue IRQs supported per NIX LF from AF registers
and sync them to PF/VF.

Signed-off-by: default avatarKiran Kumar <kirankumark@marvell.com>
Signed-off-by: default avatarSunil Goutham <sgoutham@marvell.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 9b7dd87a

drivers/net/ethernet/marvell/octeontx2/af/mbox.h

+4 −0
Original line number Diff line number Diff line
@@ -398,6 +398,10 @@ struct nix_lf_alloc_rsp { 
	u8	lso_tsov4_idx;

	u8	lso_tsov6_idx;

	u8      mac_addr[ETH_ALEN];

	u8	lf_rx_stats; /* NIX_AF_CONST1::LF_RX_STATS */

	u8	lf_tx_stats; /* NIX_AF_CONST1::LF_TX_STATS */

	u16	cints; /* NIX_AF_CONST2::CINTS */

	u16	qints; /* NIX_AF_CONST2::QINTS */

};



/* NIX AQ enqueue msg */

drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c

+8 −0
Original line number Diff line number Diff line
@@ -829,6 +829,14 @@ int rvu_mbox_handler_nix_lf_alloc(struct rvu *rvu, 
	rsp->tx_chan_cnt = pfvf->tx_chan_cnt;

	rsp->lso_tsov4_idx = NIX_LSO_FORMAT_IDX_TSOV4;

	rsp->lso_tsov6_idx = NIX_LSO_FORMAT_IDX_TSOV6;

	/* Get HW supported stat count */

	cfg = rvu_read64(rvu, blkaddr, NIX_AF_CONST1);

	rsp->lf_rx_stats = ((cfg >> 32) & 0xFF);

	rsp->lf_tx_stats = ((cfg >> 24) & 0xFF);

	/* Get count of CQ IRQs and error IRQs supported per LF */

	cfg = rvu_read64(rvu, blkaddr, NIX_AF_CONST2);

	rsp->qints = ((cfg >> 12) & 0xFFF);

	rsp->cints = ((cfg >> 24) & 0xFFF);

	return rc;

}