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Merge branch 'stmmac-fixes'

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Jose Abreu says:

====================
net: stmmac: Fixes for -net

Couple of fixes for -net. More info in commit log.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2019-08-06 12:26:11 -07:00
commit 3abd24a183
4 changed files with 88 additions and 12 deletions
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4
drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
View File

@ -85,6 +85,8 @@ static void dwmac4_rx_queue_priority(struct mac_device_info *hw,
u32 value;
base_register = (queue < 4) ? GMAC_RXQ_CTRL2 : GMAC_RXQ_CTRL3;
if (queue >= 4)
queue -= 4;
value = readl(ioaddr + base_register);
@ -102,6 +104,8 @@ static void dwmac4_tx_queue_priority(struct mac_device_info *hw,
u32 value;
base_register = (queue < 4) ? GMAC_TXQ_PRTY_MAP0 : GMAC_TXQ_PRTY_MAP1;
if (queue >= 4)
queue -= 4;
value = readl(ioaddr + base_register);

7
drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h
View File

@ -44,11 +44,13 @@
#define XGMAC_CORE_INIT_RX 0
#define XGMAC_PACKET_FILTER 0x00000008
#define XGMAC_FILTER_RA BIT(31)
#define XGMAC_FILTER_HPF BIT(10)
#define XGMAC_FILTER_PCF BIT(7)
#define XGMAC_FILTER_PM BIT(4)
#define XGMAC_FILTER_HMC BIT(2)
#define XGMAC_FILTER_PR BIT(0)
#define XGMAC_HASH_TABLE(x) (0x00000010 + (x) * 4)
#define XGMAC_MAX_HASH_TABLE 8
#define XGMAC_RXQ_CTRL0 0x000000a0
#define XGMAC_RXQEN(x) GENMASK((x) * 2 + 1, (x) * 2)
#define XGMAC_RXQEN_SHIFT(x) ((x) * 2)
@ -99,11 +101,12 @@
#define XGMAC_MDIO_ADDR 0x00000200
#define XGMAC_MDIO_DATA 0x00000204
#define XGMAC_MDIO_C22P 0x00000220
#define XGMAC_ADDR0_HIGH 0x00000300
#define XGMAC_ADDRx_HIGH(x) (0x00000300 + (x) * 0x8)
#define XGMAC_ADDR_MAX 32
#define XGMAC_AE BIT(31)
#define XGMAC_DCS GENMASK(19, 16)
#define XGMAC_DCS_SHIFT 16
#define XGMAC_ADDR0_LOW 0x00000304
#define XGMAC_ADDRx_LOW(x) (0x00000304 + (x) * 0x8)
#define XGMAC_ARP_ADDR 0x00000c10
#define XGMAC_TIMESTAMP_STATUS 0x00000d20
#define XGMAC_TXTSC BIT(15)

87
drivers/net/ethernet/stmicro/stmmac/dwxgmac2_core.c
View File

@ -4,6 +4,8 @@
* stmmac XGMAC support.
*/
#include <linux/bitrev.h>
#include <linux/crc32.h>
#include "stmmac.h"
#include "dwxgmac2.h"
@ -106,6 +108,8 @@ static void dwxgmac2_rx_queue_prio(struct mac_device_info *hw, u32 prio,
u32 value, reg;
reg = (queue < 4) ? XGMAC_RXQ_CTRL2 : XGMAC_RXQ_CTRL3;
if (queue >= 4)
queue -= 4;
value = readl(ioaddr + reg);
value &= ~XGMAC_PSRQ(queue);
@ -169,6 +173,8 @@ static void dwxgmac2_map_mtl_to_dma(struct mac_device_info *hw, u32 queue,
u32 value, reg;
reg = (queue < 4) ? XGMAC_MTL_RXQ_DMA_MAP0 : XGMAC_MTL_RXQ_DMA_MAP1;
if (queue >= 4)
queue -= 4;
value = readl(ioaddr + reg);
value &= ~XGMAC_QxMDMACH(queue);
@ -278,10 +284,10 @@ static void dwxgmac2_set_umac_addr(struct mac_device_info *hw,
u32 value;
value = (addr[5] << 8) | addr[4];
writel(value | XGMAC_AE, ioaddr + XGMAC_ADDR0_HIGH);
writel(value | XGMAC_AE, ioaddr + XGMAC_ADDRx_HIGH(reg_n));
value = (addr[3] << 24) | (addr[2] << 16) | (addr[1] << 8) | addr[0];
writel(value, ioaddr + XGMAC_ADDR0_LOW);
writel(value, ioaddr + XGMAC_ADDRx_LOW(reg_n));
}
static void dwxgmac2_get_umac_addr(struct mac_device_info *hw,
@ -291,8 +297,8 @@ static void dwxgmac2_get_umac_addr(struct mac_device_info *hw,
u32 hi_addr, lo_addr;
/* Read the MAC address from the hardware */
hi_addr = readl(ioaddr + XGMAC_ADDR0_HIGH);
lo_addr = readl(ioaddr + XGMAC_ADDR0_LOW);
hi_addr = readl(ioaddr + XGMAC_ADDRx_HIGH(reg_n));
lo_addr = readl(ioaddr + XGMAC_ADDRx_LOW(reg_n));
/* Extract the MAC address from the high and low words */
addr[0] = lo_addr & 0xff;
@ -303,19 +309,82 @@ static void dwxgmac2_get_umac_addr(struct mac_device_info *hw,
addr[5] = (hi_addr >> 8) & 0xff;
}
static void dwxgmac2_set_mchash(void __iomem *ioaddr, u32 *mcfilterbits,
int mcbitslog2)
{
int numhashregs, regs;
switch (mcbitslog2) {
case 6:
numhashregs = 2;
break;
case 7:
numhashregs = 4;
break;
case 8:
numhashregs = 8;
break;
default:
return;
}
for (regs = 0; regs < numhashregs; regs++)
writel(mcfilterbits[regs], ioaddr + XGMAC_HASH_TABLE(regs));
}
static void dwxgmac2_set_filter(struct mac_device_info *hw,
struct net_device *dev)
{
void __iomem *ioaddr = (void __iomem *)dev->base_addr;
u32 value = XGMAC_FILTER_RA;
u32 value = readl(ioaddr + XGMAC_PACKET_FILTER);
int mcbitslog2 = hw->mcast_bits_log2;
u32 mc_filter[8];
int i;
value &= ~(XGMAC_FILTER_PR | XGMAC_FILTER_HMC | XGMAC_FILTER_PM);
value |= XGMAC_FILTER_HPF;
memset(mc_filter, 0, sizeof(mc_filter));
if (dev->flags & IFF_PROMISC) {
value |= XGMAC_FILTER_PR | XGMAC_FILTER_PCF;
value |= XGMAC_FILTER_PR;
value |= XGMAC_FILTER_PCF;
} else if ((dev->flags & IFF_ALLMULTI) ||
(netdev_mc_count(dev) > HASH_TABLE_SIZE)) {
(netdev_mc_count(dev) > hw->multicast_filter_bins)) {
value |= XGMAC_FILTER_PM;
writel(~0x0, ioaddr + XGMAC_HASH_TABLE(0));
writel(~0x0, ioaddr + XGMAC_HASH_TABLE(1));
for (i = 0; i < XGMAC_MAX_HASH_TABLE; i++)
writel(~0x0, ioaddr + XGMAC_HASH_TABLE(i));
} else if (!netdev_mc_empty(dev)) {
struct netdev_hw_addr *ha;
value |= XGMAC_FILTER_HMC;
netdev_for_each_mc_addr(ha, dev) {
int nr = (bitrev32(~crc32_le(~0, ha->addr, 6)) >>
(32 - mcbitslog2));
mc_filter[nr >> 5] |= (1 << (nr & 0x1F));
}
}
dwxgmac2_set_mchash(ioaddr, mc_filter, mcbitslog2);
/* Handle multiple unicast addresses */
if (netdev_uc_count(dev) > XGMAC_ADDR_MAX) {
value |= XGMAC_FILTER_PR;
} else {
struct netdev_hw_addr *ha;
int reg = 1;
netdev_for_each_uc_addr(ha, dev) {
dwxgmac2_set_umac_addr(hw, ha->addr, reg);
reg++;
}
for ( ; reg < XGMAC_ADDR_MAX; reg++) {
writel(0, ioaddr + XGMAC_ADDRx_HIGH(reg));
writel(0, ioaddr + XGMAC_ADDRx_LOW(reg));
}
}
writel(value, ioaddr + XGMAC_PACKET_FILTER);

2
drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c
View File

@ -37,7 +37,7 @@ static struct stmmac_tc_entry *tc_find_entry(struct stmmac_priv *priv,
entry = &priv->tc_entries[i];
if (!entry->in_use && !first && free)
first = entry;
if (entry->handle == loc && !free)
if ((entry->handle == loc) && !free && !entry->is_frag)
dup = entry;
}