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[1/5] net: thunderx: Introduce BGX_ID_MASK macro to extract bgx_id

Message ID 1479120886-13425-2-git-send-email-sunil.kovvuri@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

Sunil Kovvuri Nov. 14, 2016, 10:54 a.m. UTC 
From: Radha Mohan Chintakuntla <rchintakuntla@cavium.com>

This patch fixes the 'bgx_id' determination on 83xx where there are
4 BGX blocks instead of 2 on other platforms.

Signed-off-by: Radha Mohan Chintakuntla <rchintakuntla@cavium.com>
Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
---
 drivers/net/ethernet/cavium/thunder/thunder_bgx.c | 4 ++--
 drivers/net/ethernet/cavium/thunder/thunder_bgx.h | 2 ++
 2 files changed, 4 insertions(+), 2 deletions(-)
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Patch

diff --git a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
index 8bbaedb..050e21f 100644
--- a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
+++ b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
@@ -1242,8 +1242,8 @@  static int bgx_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	pci_read_config_word(pdev, PCI_DEVICE_ID, &sdevid);
 	if (sdevid != PCI_DEVICE_ID_THUNDER_RGX) {
-		bgx->bgx_id =
-		    (pci_resource_start(pdev, PCI_CFG_REG_BAR_NUM) >> 24) & 1;
+		bgx->bgx_id = (pci_resource_start(pdev,
+			PCI_CFG_REG_BAR_NUM) >> 24) & BGX_ID_MASK;
 		bgx->bgx_id += nic_get_node_id(pdev) * MAX_BGX_PER_NODE;
 		bgx->max_lmac = MAX_LMAC_PER_BGX;
 		bgx_vnic[bgx->bgx_id] = bgx;
diff --git a/drivers/net/ethernet/cavium/thunder/thunder_bgx.h b/drivers/net/ethernet/cavium/thunder/thunder_bgx.h
index d59c71e..01cc7c8 100644
--- a/drivers/net/ethernet/cavium/thunder/thunder_bgx.h
+++ b/drivers/net/ethernet/cavium/thunder/thunder_bgx.h
@@ -28,6 +28,8 @@ 
 #define    MAX_DMAC_PER_LMAC			8
 #define    MAX_FRAME_SIZE			9216
 
+#define	   BGX_ID_MASK				0x3
+
 #define    MAX_DMAC_PER_LMAC_TNS_BYPASS_MODE	2
 
 /* Registers */