diff mbox series

[v2,net-next,08/10] octeontx2-pf: Calculate LBK link instead of hardcoding

Message ID 1603948549-781-9-git-send-email-sundeep.lkml@gmail.com
State Accepted
Delegated to: David Miller
Headers show
Series Support for OcteonTx2 98xx silcion | expand

Checks

Context Check Description
jkicinski/cover_letter success Link
jkicinski/fixes_present success Link
jkicinski/patch_count success Link
jkicinski/tree_selection success Clearly marked for net-next
jkicinski/subject_prefix success Link
jkicinski/source_inline success Was 0 now: 0
jkicinski/verify_signedoff success Link
jkicinski/module_param success Was 0 now: 0
jkicinski/build_32bit fail Errors and warnings before: 4 this patch: 4
jkicinski/kdoc success Errors and warnings before: 0 this patch: 0
jkicinski/verify_fixes success Link
jkicinski/checkpatch fail Link
jkicinski/build_allmodconfig_warn success Errors and warnings before: 14 this patch: 14
jkicinski/header_inline success Link
jkicinski/stable success Stable not CCed

Commit Message

sundeep subbaraya Oct. 29, 2020, 5:15 a.m. UTC 
From: Subbaraya Sundeep <sbhatta@marvell.com>

CGX links are followed by LBK links but number of
CGX and LBK links varies between platforms. Hence
get the number of links present in hardware from
AF and use it to calculate LBK link number.

Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: Rakesh Babu <rsaladi2@marvell.com>
---
 drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c | 8 ++++++--
 drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h | 2 ++
 2 files changed, 8 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c
index d258109..fc765e8 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c
@@ -531,8 +531,10 @@  static int otx2_get_link(struct otx2_nic *pfvf)
 		link = 4 * ((map >> 8) & 0xF) + ((map >> 4) & 0xF);
 	}
 	/* LBK channel */
-	if (pfvf->hw.tx_chan_base < SDP_CHAN_BASE)
-		link = 12;
+	if (pfvf->hw.tx_chan_base < SDP_CHAN_BASE) {
+		map = pfvf->hw.tx_chan_base & 0x7FF;
+		link = pfvf->hw.cgx_links | ((map >> 8) & 0xF);
+	}
 
 	return link;
 }
@@ -1503,6 +1505,8 @@  void mbox_handler_nix_lf_alloc(struct otx2_nic *pfvf,
 	pfvf->hw.tx_chan_base = rsp->tx_chan_base;
 	pfvf->hw.lso_tsov4_idx = rsp->lso_tsov4_idx;
 	pfvf->hw.lso_tsov6_idx = rsp->lso_tsov6_idx;
+	pfvf->hw.cgx_links = rsp->cgx_links;
+	pfvf->hw.lbk_links = rsp->lbk_links;
 }
 EXPORT_SYMBOL(mbox_handler_nix_lf_alloc);
 
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h
index d6253f2..386cb08 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h
@@ -197,6 +197,8 @@  struct otx2_hw {
 	struct otx2_drv_stats	drv_stats;
 	u64			cgx_rx_stats[CGX_RX_STATS_COUNT];
 	u64			cgx_tx_stats[CGX_TX_STATS_COUNT];
+	u8			cgx_links;  /* No. of CGX links present in HW */
+	u8			lbk_links;  /* No. of LBK links present in HW */
 };
 
 struct otx2_vf_config {