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| author | Matthew Hagan <mnhagan88@gmail.com> | 2021-09-09 17:12:30 +0000 |
|---|---|---|
| committer | Hauke Mehrtens <hauke@hauke-m.de> | 2021-10-24 16:56:17 +0200 |
| commit | e3c47ff90d765c1fe683b5422006ab1fe3ab718d (patch) | |
| tree | e70daa1617bb91fc306eec8199fb5912a669e9d6 /target/linux/generic/backport-5.10/785-v5.14-13-net-dsa-qca8k-add-GLOBAL_FC-settings-needed-for-qca8.patch | |
| parent | 6a1284cfa87489db1e73b598a2b7aacb00df9f37 (diff) | |
| download | upstream-e3c47ff90d765c1fe683b5422006ab1fe3ab718d.tar.gz upstream-e3c47ff90d765c1fe683b5422006ab1fe3ab718d.tar.bz2 upstream-e3c47ff90d765c1fe683b5422006ab1fe3ab718d.zip | |
kernel: 5.10: backport qca8k stability improvements
This is a backport of Ansuel Smith's "Multiple improvement to qca8k stability"
series. The QCA8337 switch is available on multiple platforms including
ipq806x, ath79 and bcm53xx.
Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
Signed-off-by: Matthew Hagan <mnhagan88@gmail.com>
Diffstat (limited to 'target/linux/generic/backport-5.10/785-v5.14-13-net-dsa-qca8k-add-GLOBAL_FC-settings-needed-for-qca8.patch')
| -rw-r--r-- | target/linux/generic/backport-5.10/785-v5.14-13-net-dsa-qca8k-add-GLOBAL_FC-settings-needed-for-qca8.patch | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/target/linux/generic/backport-5.10/785-v5.14-13-net-dsa-qca8k-add-GLOBAL_FC-settings-needed-for-qca8.patch b/target/linux/generic/backport-5.10/785-v5.14-13-net-dsa-qca8k-add-GLOBAL_FC-settings-needed-for-qca8.patch new file mode 100644 index 0000000000..2b393d242a --- /dev/null +++ b/target/linux/generic/backport-5.10/785-v5.14-13-net-dsa-qca8k-add-GLOBAL_FC-settings-needed-for-qca8.patch @@ -0,0 +1,48 @@ +From 0fc57e4b5e39461fc0a54aae0afe4241363a7267 Mon Sep 17 00:00:00 2001 +From: Ansuel Smith <ansuelsmth@gmail.com> +Date: Fri, 14 May 2021 23:00:03 +0200 +Subject: [PATCH] net: dsa: qca8k: add GLOBAL_FC settings needed for qca8327 + +Switch qca8327 needs special settings for the GLOBAL_FC_THRES regs. + +Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + drivers/net/dsa/qca8k.c | 10 ++++++++++ + drivers/net/dsa/qca8k.h | 6 ++++++ + 2 files changed, 16 insertions(+) + +--- a/drivers/net/dsa/qca8k.c ++++ b/drivers/net/dsa/qca8k.c +@@ -930,6 +930,16 @@ qca8k_setup(struct dsa_switch *ds) + } + } + ++ /* Special GLOBAL_FC_THRESH value are needed for ar8327 switch */ ++ if (priv->switch_id == QCA8K_ID_QCA8327) { ++ mask = QCA8K_GLOBAL_FC_GOL_XON_THRES(288) | ++ QCA8K_GLOBAL_FC_GOL_XOFF_THRES(496); ++ qca8k_rmw(priv, QCA8K_REG_GLOBAL_FC_THRESH, ++ QCA8K_GLOBAL_FC_GOL_XON_THRES_S | ++ QCA8K_GLOBAL_FC_GOL_XOFF_THRES_S, ++ mask); ++ } ++ + /* Setup our port MTUs to match power on defaults */ + for (i = 0; i < QCA8K_NUM_PORTS; i++) + priv->port_mtu[i] = ETH_FRAME_LEN + ETH_FCS_LEN; +--- a/drivers/net/dsa/qca8k.h ++++ b/drivers/net/dsa/qca8k.h +@@ -168,6 +168,12 @@ + #define QCA8K_PORT_LOOKUP_STATE GENMASK(18, 16) + #define QCA8K_PORT_LOOKUP_LEARN BIT(20) + ++#define QCA8K_REG_GLOBAL_FC_THRESH 0x800 ++#define QCA8K_GLOBAL_FC_GOL_XON_THRES(x) ((x) << 16) ++#define QCA8K_GLOBAL_FC_GOL_XON_THRES_S GENMASK(24, 16) ++#define QCA8K_GLOBAL_FC_GOL_XOFF_THRES(x) ((x) << 0) ++#define QCA8K_GLOBAL_FC_GOL_XOFF_THRES_S GENMASK(8, 0) ++ + #define QCA8K_REG_PORT_HOL_CTRL0(_i) (0x970 + (_i) * 0x8) + #define QCA8K_PORT_HOL_CTRL0_EG_PRI0_BUF GENMASK(3, 0) + #define QCA8K_PORT_HOL_CTRL0_EG_PRI0(x) ((x) << 0) |