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authorIyappan Subramanian <isubramanian@apm.com>2017-05-10 13:45:10 -0700
committerDavid S. Miller <davem@davemloft.net>2017-05-16 11:41:11 -0400
commit8aba8474181070a30f56ffd19359f5d80665175e (patch)
treeaa4c16c1409054f2a1a78b1dc89c7ce71f015131 /drivers/net/ethernet/apm
parent61c759cdf48a21e0a0794d30c509c49cbdbac752 (diff)
downloadlinux-8aba8474181070a30f56ffd19359f5d80665175e.tar.bz2
drivers: net: xgene: Fix redundant prefetch buffer cleanup
Prefetch buffer cleanup code was called twice, causing EDAC to report errors during reboot. [ 1130.972475] xgene-edac 78800000.edac: IOB bridge agent (BA) transaction error [ 1130.979584] xgene-edac 78800000.edac: IOB BA write response error [ 1130.985648] xgene-edac 78800000.edac: IOB BA write access at 0x00.00000000 () [ 1130.993612] xgene-edac 78800000.edac: IOB BA requestor ID 0x00002400 [ 1131.000242] xgene-edac 78800000.edac: IOB bridge agent (BA) transaction error ... This patch fixes the errors by, - removing the redundant prefetch buffer cleanup from port_ops->shutdown() - moving port_ops->shutdown() after delete_rings() Signed-off-by: Iyappan Subramanian <isubramanian@apm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/apm')
-rw-r--r--drivers/net/ethernet/apm/xgene/xgene_enet_hw.c21
-rw-r--r--drivers/net/ethernet/apm/xgene/xgene_enet_main.c2
-rw-r--r--drivers/net/ethernet/apm/xgene/xgene_enet_sgmac.c20
-rw-r--r--drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.c20
4 files changed, 1 insertions, 62 deletions
diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c b/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c
index 3235d0cf3942..6ac27c7522a7 100644
--- a/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c
+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c
@@ -763,27 +763,6 @@ static void xgene_enet_clear(struct xgene_enet_pdata *pdata,
static void xgene_gport_shutdown(struct xgene_enet_pdata *pdata)
{
struct device *dev = &pdata->pdev->dev;
- struct xgene_enet_desc_ring *ring;
- u32 pb;
- int i;
-
- pb = 0;
- for (i = 0; i < pdata->rxq_cnt; i++) {
- ring = pdata->rx_ring[i]->buf_pool;
- pb |= BIT(xgene_enet_get_fpsel(ring->id));
- ring = pdata->rx_ring[i]->page_pool;
- if (ring)
- pb |= BIT(xgene_enet_get_fpsel(ring->id));
-
- }
- xgene_enet_wr_ring_if(pdata, ENET_CFGSSQMIFPRESET_ADDR, pb);
-
- pb = 0;
- for (i = 0; i < pdata->txq_cnt; i++) {
- ring = pdata->tx_ring[i];
- pb |= BIT(xgene_enet_ring_bufnum(ring->id));
- }
- xgene_enet_wr_ring_if(pdata, ENET_CFGSSQMIWQRESET_ADDR, pb);
if (dev->of_node) {
if (!IS_ERR(pdata->clk))
diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c
index 01e389df3aff..21cd4ef3e5eb 100644
--- a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c
+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c
@@ -2159,8 +2159,8 @@ static int xgene_enet_remove(struct platform_device *pdev)
xgene_enet_mdio_remove(pdata);
unregister_netdev(ndev);
- pdata->port_ops->shutdown(pdata);
xgene_enet_delete_desc_rings(pdata);
+ pdata->port_ops->shutdown(pdata);
free_netdev(ndev);
return 0;
diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_sgmac.c b/drivers/net/ethernet/apm/xgene/xgene_enet_sgmac.c
index 31df8f32c214..b1a83fdbefb8 100644
--- a/drivers/net/ethernet/apm/xgene/xgene_enet_sgmac.c
+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_sgmac.c
@@ -534,26 +534,6 @@ static void xgene_enet_clear(struct xgene_enet_pdata *pdata,
static void xgene_enet_shutdown(struct xgene_enet_pdata *p)
{
struct device *dev = &p->pdev->dev;
- struct xgene_enet_desc_ring *ring;
- u32 pb;
- int i;
-
- pb = 0;
- for (i = 0; i < p->rxq_cnt; i++) {
- ring = p->rx_ring[i]->buf_pool;
- pb |= BIT(xgene_enet_get_fpsel(ring->id));
- ring = p->rx_ring[i]->page_pool;
- if (ring)
- pb |= BIT(xgene_enet_get_fpsel(ring->id));
- }
- xgene_enet_wr_ring_if(p, ENET_CFGSSQMIFPRESET_ADDR, pb);
-
- pb = 0;
- for (i = 0; i < p->txq_cnt; i++) {
- ring = p->tx_ring[i];
- pb |= BIT(xgene_enet_ring_bufnum(ring->id));
- }
- xgene_enet_wr_ring_if(p, ENET_CFGSSQMIWQRESET_ADDR, pb);
if (dev->of_node) {
if (!IS_ERR(p->clk))
diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.c b/drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.c
index eab6f1c12f1c..b7d75d067c7a 100644
--- a/drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.c
+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.c
@@ -446,26 +446,6 @@ static void xgene_enet_xgcle_bypass(struct xgene_enet_pdata *pdata,
static void xgene_enet_shutdown(struct xgene_enet_pdata *pdata)
{
struct device *dev = &pdata->pdev->dev;
- struct xgene_enet_desc_ring *ring;
- u32 pb;
- int i;
-
- pb = 0;
- for (i = 0; i < pdata->rxq_cnt; i++) {
- ring = pdata->rx_ring[i]->buf_pool;
- pb |= BIT(xgene_enet_get_fpsel(ring->id));
- ring = pdata->rx_ring[i]->page_pool;
- if (ring)
- pb |= BIT(xgene_enet_get_fpsel(ring->id));
- }
- xgene_enet_wr_ring_if(pdata, ENET_CFGSSQMIFPRESET_ADDR, pb);
-
- pb = 0;
- for (i = 0; i < pdata->txq_cnt; i++) {
- ring = pdata->tx_ring[i];
- pb |= BIT(xgene_enet_ring_bufnum(ring->id));
- }
- xgene_enet_wr_ring_if(pdata, ENET_CFGSSQMIWQRESET_ADDR, pb);
if (dev->of_node) {
if (!IS_ERR(pdata->clk))