[PATCH 1/6] rb532: copy files from 4.14 to 5.4
Adrian Schmutzler
freifunk at adrianschmutzler.de
Sat Aug 22 07:07:47 EDT 2020
Just copy, do not change anything yet.
Signed-off-by: Adrian Schmutzler <freifunk at adrianschmutzler.de>
---
target/linux/rb532/config-5.4 | 181 ++++++++++++++++++
.../rb532/patches-5.4/001-cmdline_hack.patch | 20 ++
.../004-rb532-fix-partition-info.patch | 17 ++
...overflow-and-tx-underflow-interrupts.patch | 156 +++++++++++++++
...actor-rx-descriptor-flags-processing.patch | 110 +++++++++++
.../107-use-NAPI_POLL_WEIGHT.patch | 11 ++
.../patches-5.4/108-korina-use-gro.patch | 11 ++
.../109-korina-whitespace-cleanup-2.patch | 135 +++++++++++++
.../110-korina-update-authors.patch | 17 ++
.../patches-5.4/111-korina-version-bump.patch | 13 ++
10 files changed, 671 insertions(+)
create mode 100644 target/linux/rb532/config-5.4
create mode 100644 target/linux/rb532/patches-5.4/001-cmdline_hack.patch
create mode 100644 target/linux/rb532/patches-5.4/004-rb532-fix-partition-info.patch
create mode 100644 target/linux/rb532/patches-5.4/106-dont-use-rx-overflow-and-tx-underflow-interrupts.patch
create mode 100644 target/linux/rb532/patches-5.4/107-korina-refactor-rx-descriptor-flags-processing.patch
create mode 100644 target/linux/rb532/patches-5.4/107-use-NAPI_POLL_WEIGHT.patch
create mode 100644 target/linux/rb532/patches-5.4/108-korina-use-gro.patch
create mode 100644 target/linux/rb532/patches-5.4/109-korina-whitespace-cleanup-2.patch
create mode 100644 target/linux/rb532/patches-5.4/110-korina-update-authors.patch
create mode 100644 target/linux/rb532/patches-5.4/111-korina-version-bump.patch
diff --git a/target/linux/rb532/config-5.4 b/target/linux/rb532/config-5.4
new file mode 100644
index 0000000000..257b4e2d6c
--- /dev/null
+++ b/target/linux/rb532/config-5.4
@@ -0,0 +1,181 @@
+CONFIG_ARCH_BINFMT_ELF_STATE=y
+CONFIG_ARCH_CLOCKSOURCE_DATA=y
+CONFIG_ARCH_DISCARD_MEMBLOCK=y
+CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE=y
+CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
+# CONFIG_ARCH_HAS_GCOV_PROFILE_ALL is not set
+# CONFIG_ARCH_HAS_SG_CHAIN is not set
+CONFIG_ARCH_HIBERNATION_POSSIBLE=y
+CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
+CONFIG_ARCH_MIGHT_HAVE_PC_SERIO=y
+CONFIG_ARCH_REQUIRE_GPIOLIB=y
+CONFIG_ARCH_SUPPORTS_UPROBES=y
+CONFIG_ARCH_SUSPEND_POSSIBLE=y
+CONFIG_ARCH_USE_BUILTIN_BSWAP=y
+CONFIG_ARCH_WANT_IPC_PARSE_VERSION=y
+CONFIG_ATA=y
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_BLK_DEV_SD=y
+CONFIG_CEVT_R4K=y
+CONFIG_CLONE_BACKWARDS=y
+CONFIG_CPU_GENERIC_DUMP_TLB=y
+CONFIG_CPU_HAS_PREFETCH=y
+CONFIG_CPU_HAS_SYNC=y
+CONFIG_CPU_LITTLE_ENDIAN=y
+CONFIG_CPU_MIPS32=y
+CONFIG_CPU_MIPS32_R1=y
+CONFIG_CPU_MIPSR1=y
+CONFIG_CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS=y
+CONFIG_CPU_R4K_CACHE_TLB=y
+CONFIG_CPU_R4K_FPU=y
+CONFIG_CPU_SUPPORTS_32BIT_KERNEL=y
+CONFIG_CPU_SUPPORTS_HIGHMEM=y
+CONFIG_CRC16=y
+CONFIG_CRYPTO_CRC32C=y
+CONFIG_CRYPTO_DEFLATE=y
+CONFIG_CRYPTO_HASH=y
+CONFIG_CRYPTO_HASH2=y
+CONFIG_CRYPTO_LZO=y
+CONFIG_CRYPTO_RNG2=y
+CONFIG_CRYPTO_WORKQUEUE=y
+CONFIG_CSRC_R4K=y
+CONFIG_DMA_NONCOHERENT=y
+# CONFIG_ENABLE_WARN_DEPRECATED is not set
+CONFIG_EXT4_FS=y
+# CONFIG_F2FS_CHECK_FS is not set
+CONFIG_F2FS_FS=y
+# CONFIG_F2FS_FS_SECURITY is not set
+CONFIG_F2FS_FS_XATTR=y
+CONFIG_F2FS_STAT_FS=y
+CONFIG_FS_MBCACHE=y
+CONFIG_GENERIC_ATOMIC64=y
+CONFIG_GENERIC_CLOCKEVENTS=y
+CONFIG_GENERIC_CMOS_UPDATE=y
+CONFIG_GENERIC_IO=y
+CONFIG_GENERIC_IRQ_CHIP=y
+CONFIG_GENERIC_IRQ_SHOW=y
+CONFIG_GENERIC_PCI_IOMAP=y
+CONFIG_GENERIC_SCHED_CLOCK=y
+CONFIG_GENERIC_SMP_IDLE_THREAD=y
+CONFIG_GENERIC_TIME_VSYSCALL=y
+CONFIG_GLOB=y
+CONFIG_GPIOLIB=y
+CONFIG_HARDWARE_WATCHPOINTS=y
+CONFIG_HAS_DMA=y
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT_MAP=y
+# CONFIG_HAVE_64BIT_ALIGNED_ACCESS is not set
+# CONFIG_HAVE_ARCH_BITREVERSE is not set
+CONFIG_HAVE_ARCH_JUMP_LABEL=y
+CONFIG_HAVE_ARCH_KGDB=y
+CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
+CONFIG_HAVE_ARCH_TRACEHOOK=y
+# CONFIG_HAVE_BOOTMEM_INFO_NODE is not set
+CONFIG_HAVE_CC_STACKPROTECTOR=y
+CONFIG_HAVE_CONTEXT_TRACKING=y
+CONFIG_HAVE_C_RECORDMCOUNT=y
+CONFIG_HAVE_DEBUG_KMEMLEAK=y
+CONFIG_HAVE_DEBUG_STACKOVERFLOW=y
+CONFIG_HAVE_DMA_API_DEBUG=y
+CONFIG_HAVE_DMA_ATTRS=y
+CONFIG_HAVE_DMA_CONTIGUOUS=y
+CONFIG_HAVE_DYNAMIC_FTRACE=y
+CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
+CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
+CONFIG_HAVE_FUNCTION_TRACER=y
+CONFIG_HAVE_GENERIC_DMA_COHERENT=y
+CONFIG_HAVE_IDE=y
+CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
+CONFIG_HAVE_LATENCYTOP_SUPPORT=y
+CONFIG_HAVE_MEMBLOCK=y
+CONFIG_HAVE_MEMBLOCK_NODE_MAP=y
+CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
+CONFIG_HAVE_NET_DSA=y
+CONFIG_HAVE_OPROFILE=y
+CONFIG_HAVE_PERF_EVENTS=y
+CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
+CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
+# CONFIG_HIGH_RES_TIMERS is not set
+CONFIG_HW_HAS_PCI=y
+CONFIG_HW_RANDOM=y
+CONFIG_HZ=250
+# CONFIG_HZ_100 is not set
+CONFIG_HZ_250=y
+CONFIG_HZ_PERIODIC=y
+CONFIG_IMAGE_CMDLINE_HACK=y
+CONFIG_INITRAMFS_SOURCE=""
+CONFIG_IRQ_DOMAIN=y
+CONFIG_IRQ_FORCED_THREADING=y
+CONFIG_IRQ_MIPS_CPU=y
+CONFIG_IRQ_WORK=y
+CONFIG_JBD2=y
+CONFIG_KEXEC=y
+CONFIG_KEXEC_CORE=y
+CONFIG_KORINA=y
+CONFIG_LEDS_MIKROTIK_RB532=y
+CONFIG_LZO_COMPRESS=y
+CONFIG_LZO_DECOMPRESS=y
+CONFIG_MIKROTIK_RB532=y
+CONFIG_MIPS=y
+CONFIG_MIPS_CLOCK_VSYSCALL=y
+CONFIG_MIPS_CMDLINE_FROM_BOOTLOADER=y
+# CONFIG_MIPS_HUGE_TLB_SUPPORT is not set
+CONFIG_MIPS_L1_CACHE_SHIFT=4
+CONFIG_MIPS_L1_CACHE_SHIFT_4=y
+# CONFIG_MIPS_MACHINE is not set
+CONFIG_MODULES_USE_ELF_REL=y
+CONFIG_MTD_CFI_ADV_OPTIONS=y
+# CONFIG_MTD_CFI_AMDSTD is not set
+CONFIG_MTD_CFI_GEOMETRY=y
+# CONFIG_MTD_CFI_INTELEXT is not set
+# CONFIG_MTD_COMPLEX_MAPPINGS is not set
+CONFIG_MTD_NAND=y
+CONFIG_MTD_NAND_ECC=y
+CONFIG_MTD_NAND_PLATFORM=y
+CONFIG_MTD_PHYSMAP=y
+# CONFIG_MTD_ROOTFS_ROOT_DEV is not set
+CONFIG_MTD_UBI=y
+CONFIG_MTD_UBI_BEB_LIMIT=20
+CONFIG_MTD_UBI_BLOCK=y
+# CONFIG_MTD_UBI_FASTMAP is not set
+# CONFIG_MTD_UBI_GLUEBI is not set
+CONFIG_MTD_UBI_WL_THRESHOLD=4096
+CONFIG_NEED_DMA_MAP_STATE=y
+CONFIG_NEED_PER_CPU_KM=y
+CONFIG_NO_GENERIC_PCI_IOPORT_MAP=y
+# CONFIG_NO_IOPORT_MAP is not set
+# CONFIG_OF is not set
+CONFIG_PATA_RB532=y
+CONFIG_PCI=y
+CONFIG_PCI_DISABLE_COMMON_QUIRKS=y
+CONFIG_PCI_DOMAINS=y
+CONFIG_PERF_USE_VMALLOC=y
+CONFIG_PGTABLE_LEVELS=2
+CONFIG_RC32434_WDT=y
+# CONFIG_RCU_STALL_COMMON is not set
+# CONFIG_SCHED_HRTICK is not set
+# CONFIG_SCHED_INFO is not set
+CONFIG_SCSI=y
+# CONFIG_SCSI_LOWLEVEL is not set
+# CONFIG_SCSI_PROC_FS is not set
+# CONFIG_SERIAL_8250_FSL is not set
+CONFIG_SQUASHFS_DECOMP_MULTI=y
+# CONFIG_SQUASHFS_DECOMP_MULTI_PERCPU is not set
+CONFIG_SRCU=y
+# CONFIG_SWAP is not set
+CONFIG_SWAP_IO_SPACE=y
+CONFIG_SYSCTL_EXCEPTION_TRACE=y
+CONFIG_SYS_HAS_CPU_MIPS32_R1=y
+CONFIG_SYS_SUPPORTS_32BIT_KERNEL=y
+CONFIG_SYS_SUPPORTS_ARBIT_HZ=y
+CONFIG_SYS_SUPPORTS_LITTLE_ENDIAN=y
+CONFIG_TICK_CPU_ACCOUNTING=y
+CONFIG_UBIFS_FS=y
+# CONFIG_UBIFS_FS_ADVANCED_COMPR is not set
+CONFIG_UBIFS_FS_LZO=y
+CONFIG_UBIFS_FS_ZLIB=y
+CONFIG_VIA_RHINE=y
+CONFIG_VIA_RHINE_MMIO=y
+CONFIG_ZLIB_DEFLATE=y
+CONFIG_ZLIB_INFLATE=y
+CONFIG_ZONE_DMA_FLAG=0
diff --git a/target/linux/rb532/patches-5.4/001-cmdline_hack.patch b/target/linux/rb532/patches-5.4/001-cmdline_hack.patch
new file mode 100644
index 0000000000..a39da9c14a
--- /dev/null
+++ b/target/linux/rb532/patches-5.4/001-cmdline_hack.patch
@@ -0,0 +1,20 @@
+--- a/arch/mips/rb532/prom.c
++++ b/arch/mips/rb532/prom.c
+@@ -67,6 +67,7 @@ static inline unsigned long tag2ul(char
+ return simple_strtoul(num, 0, 10);
+ }
+
++extern char __image_cmdline[];
+ void __init prom_setup_cmdline(void)
+ {
+ static char cmd_line[COMMAND_LINE_SIZE] __initdata;
+@@ -108,6 +109,9 @@ void __init prom_setup_cmdline(void)
+ }
+ *(cp++) = ' ';
+
++ strcpy(cp,(__image_cmdline));
++ cp += strlen(__image_cmdline);
++
+ i = strlen(arcs_cmdline);
+ if (i > 0) {
+ *(cp++) = ' ';
diff --git a/target/linux/rb532/patches-5.4/004-rb532-fix-partition-info.patch b/target/linux/rb532/patches-5.4/004-rb532-fix-partition-info.patch
new file mode 100644
index 0000000000..5161a233dd
--- /dev/null
+++ b/target/linux/rb532/patches-5.4/004-rb532-fix-partition-info.patch
@@ -0,0 +1,17 @@
+--- a/arch/mips/rb532/devices.c
++++ b/arch/mips/rb532/devices.c
+@@ -186,11 +186,11 @@ static struct platform_device nand_slot0
+
+ static struct mtd_partition rb532_partition_info[] = {
+ {
+- .name = "Routerboard NAND boot",
++ .name = "kernel",
+ .offset = 0,
+- .size = 4 * 1024 * 1024,
++ .size = 8 * 1024 * 1024,
+ }, {
+- .name = "rootfs",
++ .name = "ubi",
+ .offset = MTDPART_OFS_NXTBLK,
+ .size = MTDPART_SIZ_FULL,
+ }
diff --git a/target/linux/rb532/patches-5.4/106-dont-use-rx-overflow-and-tx-underflow-interrupts.patch b/target/linux/rb532/patches-5.4/106-dont-use-rx-overflow-and-tx-underflow-interrupts.patch
new file mode 100644
index 0000000000..2bc2c1067e
--- /dev/null
+++ b/target/linux/rb532/patches-5.4/106-dont-use-rx-overflow-and-tx-underflow-interrupts.patch
@@ -0,0 +1,156 @@
+--- a/drivers/net/ethernet/korina.c
++++ b/drivers/net/ethernet/korina.c
+@@ -122,8 +122,6 @@ struct korina_private {
+
+ int rx_irq;
+ int tx_irq;
+- int ovr_irq;
+- int und_irq;
+
+ spinlock_t lock; /* NIC xmit lock */
+
+@@ -891,8 +889,6 @@ static void korina_restart_task(struct w
+ */
+ disable_irq(lp->rx_irq);
+ disable_irq(lp->tx_irq);
+- disable_irq(lp->ovr_irq);
+- disable_irq(lp->und_irq);
+
+ writel(readl(&lp->tx_dma_regs->dmasm) |
+ DMA_STAT_FINI | DMA_STAT_ERR,
+@@ -911,40 +907,10 @@ static void korina_restart_task(struct w
+ }
+ korina_multicast_list(dev);
+
+- enable_irq(lp->und_irq);
+- enable_irq(lp->ovr_irq);
+ enable_irq(lp->tx_irq);
+ enable_irq(lp->rx_irq);
+ }
+
+-static void korina_clear_and_restart(struct net_device *dev, u32 value)
+-{
+- struct korina_private *lp = netdev_priv(dev);
+-
+- netif_stop_queue(dev);
+- writel(value, &lp->eth_regs->ethintfc);
+- schedule_work(&lp->restart_task);
+-}
+-
+-/* Ethernet Tx Underflow interrupt */
+-static irqreturn_t korina_und_interrupt(int irq, void *dev_id)
+-{
+- struct net_device *dev = dev_id;
+- struct korina_private *lp = netdev_priv(dev);
+- unsigned int und;
+-
+- spin_lock(&lp->lock);
+-
+- und = readl(&lp->eth_regs->ethintfc);
+-
+- if (und & ETH_INT_FC_UND)
+- korina_clear_and_restart(dev, und & ~ETH_INT_FC_UND);
+-
+- spin_unlock(&lp->lock);
+-
+- return IRQ_HANDLED;
+-}
+-
+ static void korina_tx_timeout(struct net_device *dev)
+ {
+ struct korina_private *lp = netdev_priv(dev);
+@@ -952,25 +918,6 @@ static void korina_tx_timeout(struct net
+ schedule_work(&lp->restart_task);
+ }
+
+-/* Ethernet Rx Overflow interrupt */
+-static irqreturn_t
+-korina_ovr_interrupt(int irq, void *dev_id)
+-{
+- struct net_device *dev = dev_id;
+- struct korina_private *lp = netdev_priv(dev);
+- unsigned int ovr;
+-
+- spin_lock(&lp->lock);
+- ovr = readl(&lp->eth_regs->ethintfc);
+-
+- if (ovr & ETH_INT_FC_OVR)
+- korina_clear_and_restart(dev, ovr & ~ETH_INT_FC_OVR);
+-
+- spin_unlock(&lp->lock);
+-
+- return IRQ_HANDLED;
+-}
+-
+ #ifdef CONFIG_NET_POLL_CONTROLLER
+ static void korina_poll_controller(struct net_device *dev)
+ {
+@@ -993,8 +940,7 @@ static int korina_open(struct net_device
+ }
+
+ /* Install the interrupt handler
+- * that handles the Done Finished
+- * Ovr and Und Events */
++ * that handles the Done Finished */
+ ret = request_irq(lp->rx_irq, korina_rx_dma_interrupt,
+ 0, "Korina ethernet Rx", dev);
+ if (ret < 0) {
+@@ -1010,31 +956,10 @@ static int korina_open(struct net_device
+ goto err_free_rx_irq;
+ }
+
+- /* Install handler for overrun error. */
+- ret = request_irq(lp->ovr_irq, korina_ovr_interrupt,
+- 0, "Ethernet Overflow", dev);
+- if (ret < 0) {
+- printk(KERN_ERR "%s: unable to get OVR IRQ %d\n",
+- dev->name, lp->ovr_irq);
+- goto err_free_tx_irq;
+- }
+-
+- /* Install handler for underflow error. */
+- ret = request_irq(lp->und_irq, korina_und_interrupt,
+- 0, "Ethernet Underflow", dev);
+- if (ret < 0) {
+- printk(KERN_ERR "%s: unable to get UND IRQ %d\n",
+- dev->name, lp->und_irq);
+- goto err_free_ovr_irq;
+- }
+ mod_timer(&lp->media_check_timer, jiffies + 1);
+ out:
+ return ret;
+
+-err_free_ovr_irq:
+- free_irq(lp->ovr_irq, dev);
+-err_free_tx_irq:
+- free_irq(lp->tx_irq, dev);
+ err_free_rx_irq:
+ free_irq(lp->rx_irq, dev);
+ err_release:
+@@ -1052,8 +977,6 @@ static int korina_close(struct net_devic
+ /* Disable interrupts */
+ disable_irq(lp->rx_irq);
+ disable_irq(lp->tx_irq);
+- disable_irq(lp->ovr_irq);
+- disable_irq(lp->und_irq);
+
+ korina_abort_tx(dev);
+ tmp = readl(&lp->tx_dma_regs->dmasm);
+@@ -1073,8 +996,6 @@ static int korina_close(struct net_devic
+
+ free_irq(lp->rx_irq, dev);
+ free_irq(lp->tx_irq, dev);
+- free_irq(lp->ovr_irq, dev);
+- free_irq(lp->und_irq, dev);
+
+ return 0;
+ }
+@@ -1113,8 +1034,6 @@ static int korina_probe(struct platform_
+
+ lp->rx_irq = platform_get_irq_byname(pdev, "korina_rx");
+ lp->tx_irq = platform_get_irq_byname(pdev, "korina_tx");
+- lp->ovr_irq = platform_get_irq_byname(pdev, "korina_ovr");
+- lp->und_irq = platform_get_irq_byname(pdev, "korina_und");
+
+ r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "korina_regs");
+ dev->base_addr = r->start;
diff --git a/target/linux/rb532/patches-5.4/107-korina-refactor-rx-descriptor-flags-processing.patch b/target/linux/rb532/patches-5.4/107-korina-refactor-rx-descriptor-flags-processing.patch
new file mode 100644
index 0000000000..80745f534d
--- /dev/null
+++ b/target/linux/rb532/patches-5.4/107-korina-refactor-rx-descriptor-flags-processing.patch
@@ -0,0 +1,110 @@
+--- a/drivers/net/ethernet/korina.c
++++ b/drivers/net/ethernet/korina.c
+@@ -363,59 +363,60 @@ static int korina_rx(struct net_device *
+ if ((KORINA_RBSIZE - (u32)DMA_COUNT(rd->control)) == 0)
+ break;
+
+- /* Update statistics counters */
+- if (devcs & ETH_RX_CRC)
+- dev->stats.rx_crc_errors++;
+- if (devcs & ETH_RX_LOR)
+- dev->stats.rx_length_errors++;
+- if (devcs & ETH_RX_LE)
+- dev->stats.rx_length_errors++;
+- if (devcs & ETH_RX_OVR)
+- dev->stats.rx_fifo_errors++;
+- if (devcs & ETH_RX_CV)
+- dev->stats.rx_frame_errors++;
+- if (devcs & ETH_RX_CES)
+- dev->stats.rx_length_errors++;
+- if (devcs & ETH_RX_MP)
+- dev->stats.multicast++;
++ /* check that this is a whole packet
++ * WARNING: DMA_FD bit incorrectly set
++ * in Rc32434 (errata ref #077) */
++ if (!(devcs & ETH_RX_LD))
++ goto next;
+
+- if ((devcs & ETH_RX_LD) != ETH_RX_LD) {
+- /* check that this is a whole packet
+- * WARNING: DMA_FD bit incorrectly set
+- * in Rc32434 (errata ref #077) */
++ if (!(devcs & ETH_RX_ROK)) {
++ /* Update statistics counters */
+ dev->stats.rx_errors++;
+ dev->stats.rx_dropped++;
+- } else if ((devcs & ETH_RX_ROK)) {
+- pkt_len = RCVPKT_LENGTH(devcs);
++ if (devcs & ETH_RX_CRC)
++ dev->stats.rx_crc_errors++;
++ if (devcs & ETH_RX_LE)
++ dev->stats.rx_length_errors++;
++ if (devcs & ETH_RX_OVR)
++ dev->stats.rx_fifo_errors++;
++ if (devcs & ETH_RX_CV)
++ dev->stats.rx_frame_errors++;
++ if (devcs & ETH_RX_CES)
++ dev->stats.rx_frame_errors++;
+
+- /* must be the (first and) last
+- * descriptor then */
+- pkt_buf = (u8 *)lp->rx_skb[lp->rx_next_done]->data;
+-
+- /* invalidate the cache */
+- dma_cache_inv((unsigned long)pkt_buf, pkt_len - 4);
+-
+- /* Malloc up new buffer. */
+- skb_new = netdev_alloc_skb_ip_align(dev, KORINA_RBSIZE);
+-
+- if (!skb_new)
+- break;
+- /* Do not count the CRC */
+- skb_put(skb, pkt_len - 4);
+- skb->protocol = eth_type_trans(skb, dev);
+-
+- /* Pass the packet to upper layers */
+- netif_receive_skb(skb);
+- dev->stats.rx_packets++;
+- dev->stats.rx_bytes += pkt_len;
+-
+- /* Update the mcast stats */
+- if (devcs & ETH_RX_MP)
+- dev->stats.multicast++;
+-
+- lp->rx_skb[lp->rx_next_done] = skb_new;
++ goto next;
+ }
+
++ pkt_len = RCVPKT_LENGTH(devcs);
++
++ /* must be the (first and) last
++ * descriptor then */
++ pkt_buf = (u8 *)lp->rx_skb[lp->rx_next_done]->data;
++
++ /* invalidate the cache */
++ dma_cache_inv((unsigned long)pkt_buf, pkt_len - 4);
++
++ /* Malloc up new buffer. */
++ skb_new = netdev_alloc_skb_ip_align(dev, KORINA_RBSIZE);
++
++ if (!skb_new)
++ break;
++ /* Do not count the CRC */
++ skb_put(skb, pkt_len - 4);
++ skb->protocol = eth_type_trans(skb, dev);
++
++ /* Pass the packet to upper layers */
++ netif_receive_skb(skb);
++ dev->stats.rx_packets++;
++ dev->stats.rx_bytes += pkt_len;
++
++ /* Update the mcast stats */
++ if (devcs & ETH_RX_MP)
++ dev->stats.multicast++;
++
++ lp->rx_skb[lp->rx_next_done] = skb_new;
++
++next:
+ rd->devcs = 0;
+
+ /* Restore descriptor's curr_addr */
diff --git a/target/linux/rb532/patches-5.4/107-use-NAPI_POLL_WEIGHT.patch b/target/linux/rb532/patches-5.4/107-use-NAPI_POLL_WEIGHT.patch
new file mode 100644
index 0000000000..d4af90636f
--- /dev/null
+++ b/target/linux/rb532/patches-5.4/107-use-NAPI_POLL_WEIGHT.patch
@@ -0,0 +1,11 @@
+--- a/drivers/net/ethernet/korina.c
++++ b/drivers/net/ethernet/korina.c
+@@ -1082,7 +1082,7 @@ static int korina_probe(struct platform_
+ dev->netdev_ops = &korina_netdev_ops;
+ dev->ethtool_ops = &netdev_ethtool_ops;
+ dev->watchdog_timeo = TX_TIMEOUT;
+- netif_napi_add(dev, &lp->napi, korina_poll, 64);
++ netif_napi_add(dev, &lp->napi, korina_poll, NAPI_POLL_WEIGHT);
+
+ lp->phy_addr = (((lp->rx_irq == 0x2c? 1:0) << 8) | 0x05);
+ lp->mii_if.dev = dev;
diff --git a/target/linux/rb532/patches-5.4/108-korina-use-gro.patch b/target/linux/rb532/patches-5.4/108-korina-use-gro.patch
new file mode 100644
index 0000000000..8cbe2a0777
--- /dev/null
+++ b/target/linux/rb532/patches-5.4/108-korina-use-gro.patch
@@ -0,0 +1,11 @@
+--- a/drivers/net/ethernet/korina.c
++++ b/drivers/net/ethernet/korina.c
+@@ -406,7 +406,7 @@ static int korina_rx(struct net_device *
+ skb->protocol = eth_type_trans(skb, dev);
+
+ /* Pass the packet to upper layers */
+- netif_receive_skb(skb);
++ napi_gro_receive(&lp->napi, skb);
+ dev->stats.rx_packets++;
+ dev->stats.rx_bytes += pkt_len;
+
diff --git a/target/linux/rb532/patches-5.4/109-korina-whitespace-cleanup-2.patch b/target/linux/rb532/patches-5.4/109-korina-whitespace-cleanup-2.patch
new file mode 100644
index 0000000000..ad24a9e846
--- /dev/null
+++ b/target/linux/rb532/patches-5.4/109-korina-whitespace-cleanup-2.patch
@@ -0,0 +1,135 @@
+--- a/drivers/net/ethernet/korina.c
++++ b/drivers/net/ethernet/korina.c
+@@ -64,9 +64,9 @@
+ #include <asm/mach-rc32434/eth.h>
+ #include <asm/mach-rc32434/dma_v.h>
+
+-#define DRV_NAME "korina"
+-#define DRV_VERSION "0.10"
+-#define DRV_RELDATE "04Mar2008"
++#define DRV_NAME "korina"
++#define DRV_VERSION "0.10"
++#define DRV_RELDATE "04Mar2008"
+
+ #define STATION_ADDRESS_HIGH(dev) (((dev)->dev_addr[0] << 8) | \
+ ((dev)->dev_addr[1]))
+@@ -75,7 +75,7 @@
+ ((dev)->dev_addr[4] << 8) | \
+ ((dev)->dev_addr[5]))
+
+-#define MII_CLOCK 1250000 /* no more than 2.5MHz */
++#define MII_CLOCK 1250000 /* no more than 2.5MHz */
+
+ /* the following must be powers of two */
+ #define KORINA_NUM_RDS 64 /* number of receive descriptors */
+@@ -87,15 +87,19 @@
+ #define KORINA_RBSIZE 1536 /* size of one resource buffer = Ether MTU */
+ #define KORINA_RDS_MASK (KORINA_NUM_RDS - 1)
+ #define KORINA_TDS_MASK (KORINA_NUM_TDS - 1)
+-#define RD_RING_SIZE (KORINA_NUM_RDS * sizeof(struct dma_desc))
++#define RD_RING_SIZE (KORINA_NUM_RDS * sizeof(struct dma_desc))
+ #define TD_RING_SIZE (KORINA_NUM_TDS * sizeof(struct dma_desc))
+
+-#define TX_TIMEOUT (6000 * HZ / 1000)
++#define TX_TIMEOUT (6000 * HZ / 1000)
+
+-enum chain_status { desc_filled, desc_empty };
+-#define IS_DMA_FINISHED(X) (((X) & (DMA_DESC_FINI)) != 0)
+-#define IS_DMA_DONE(X) (((X) & (DMA_DESC_DONE)) != 0)
+-#define RCVPKT_LENGTH(X) (((X) & ETH_RX_LEN) >> ETH_RX_LEN_BIT)
++enum chain_status {
++ desc_filled,
++ desc_empty
++};
++
++#define IS_DMA_FINISHED(X) (((X) & (DMA_DESC_FINI)) != 0)
++#define IS_DMA_DONE(X) (((X) & (DMA_DESC_DONE)) != 0)
++#define RCVPKT_LENGTH(X) (((X) & ETH_RX_LEN) >> ETH_RX_LEN_BIT)
+
+ /* Information that need to be kept for each board. */
+ struct korina_private {
+@@ -123,7 +127,7 @@ struct korina_private {
+ int rx_irq;
+ int tx_irq;
+
+- spinlock_t lock; /* NIC xmit lock */
++ spinlock_t lock; /* NIC xmit lock */
+
+ int dma_halt_cnt;
+ int dma_run_cnt;
+@@ -146,17 +150,17 @@ static inline void korina_start_dma(stru
+ static inline void korina_abort_dma(struct net_device *dev,
+ struct dma_reg *ch)
+ {
+- if (readl(&ch->dmac) & DMA_CHAN_RUN_BIT) {
+- writel(0x10, &ch->dmac);
++ if (readl(&ch->dmac) & DMA_CHAN_RUN_BIT) {
++ writel(0x10, &ch->dmac);
+
+- while (!(readl(&ch->dmas) & DMA_STAT_HALT))
+- netif_trans_update(dev);
++ while (!(readl(&ch->dmas) & DMA_STAT_HALT))
++ netif_trans_update(dev);
+
+- writel(0, &ch->dmas);
+- }
++ writel(0, &ch->dmas);
++ }
+
+- writel(0, &ch->dmadptr);
+- writel(0, &ch->dmandptr);
++ writel(0, &ch->dmadptr);
++ writel(0, &ch->dmandptr);
+ }
+
+ static inline void korina_chain_dma(struct dma_reg *ch, u32 dma_addr)
+@@ -685,7 +689,7 @@ static int korina_ioctl(struct net_devic
+
+ /* ethtool helpers */
+ static void netdev_get_drvinfo(struct net_device *dev,
+- struct ethtool_drvinfo *info)
++ struct ethtool_drvinfo *info)
+ {
+ struct korina_private *lp = netdev_priv(dev);
+
+@@ -728,10 +732,10 @@ static u32 netdev_get_link(struct net_de
+ }
+
+ static const struct ethtool_ops netdev_ethtool_ops = {
+- .get_drvinfo = netdev_get_drvinfo,
+- .get_link = netdev_get_link,
+- .get_link_ksettings = netdev_get_link_ksettings,
+- .set_link_ksettings = netdev_set_link_ksettings,
++ .get_drvinfo = netdev_get_drvinfo,
++ .get_link = netdev_get_link,
++ .get_link_ksettings = netdev_get_link_ksettings,
++ .set_link_ksettings = netdev_set_link_ksettings,
+ };
+
+ static int korina_alloc_ring(struct net_device *dev)
+@@ -863,7 +867,7 @@ static int korina_init(struct net_device
+ /* Management Clock Prescaler Divisor
+ * Clock independent setting */
+ writel(((idt_cpu_freq) / MII_CLOCK + 1) & ~1,
+- &lp->eth_regs->ethmcp);
++ &lp->eth_regs->ethmcp);
+
+ /* don't transmit until fifo contains 48b */
+ writel(48, &lp->eth_regs->ethfifott);
+@@ -946,14 +950,14 @@ static int korina_open(struct net_device
+ 0, "Korina ethernet Rx", dev);
+ if (ret < 0) {
+ printk(KERN_ERR "%s: unable to get Rx DMA IRQ %d\n",
+- dev->name, lp->rx_irq);
++ dev->name, lp->rx_irq);
+ goto err_release;
+ }
+ ret = request_irq(lp->tx_irq, korina_tx_dma_interrupt,
+ 0, "Korina ethernet Tx", dev);
+ if (ret < 0) {
+ printk(KERN_ERR "%s: unable to get Tx DMA IRQ %d\n",
+- dev->name, lp->tx_irq);
++ dev->name, lp->tx_irq);
+ goto err_free_rx_irq;
+ }
+
diff --git a/target/linux/rb532/patches-5.4/110-korina-update-authors.patch b/target/linux/rb532/patches-5.4/110-korina-update-authors.patch
new file mode 100644
index 0000000000..843397cf37
--- /dev/null
+++ b/target/linux/rb532/patches-5.4/110-korina-update-authors.patch
@@ -0,0 +1,17 @@
+--- a/drivers/net/ethernet/korina.c
++++ b/drivers/net/ethernet/korina.c
+@@ -4,6 +4,7 @@
+ * Copyright 2004 IDT Inc. (rischelp at idt.com)
+ * Copyright 2006 Felix Fietkau <nbd at openwrt.org>
+ * Copyright 2008 Florian Fainelli <florian at openwrt.org>
++ * Copyright 2017 Roman Yeryomin <roman at advem.lv>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+@@ -1150,5 +1151,6 @@ module_platform_driver(korina_driver);
+ MODULE_AUTHOR("Philip Rischel <rischelp at idt.com>");
+ MODULE_AUTHOR("Felix Fietkau <nbd at openwrt.org>");
+ MODULE_AUTHOR("Florian Fainelli <florian at openwrt.org>");
++MODULE_AUTHOR("Roman Yeryomin <roman at advem.lv>");
+ MODULE_DESCRIPTION("IDT RC32434 (Korina) Ethernet driver");
+ MODULE_LICENSE("GPL");
diff --git a/target/linux/rb532/patches-5.4/111-korina-version-bump.patch b/target/linux/rb532/patches-5.4/111-korina-version-bump.patch
new file mode 100644
index 0000000000..1501e174b1
--- /dev/null
+++ b/target/linux/rb532/patches-5.4/111-korina-version-bump.patch
@@ -0,0 +1,13 @@
+--- a/drivers/net/ethernet/korina.c
++++ b/drivers/net/ethernet/korina.c
+@@ -66,8 +66,8 @@
+ #include <asm/mach-rc32434/dma_v.h>
+
+ #define DRV_NAME "korina"
+-#define DRV_VERSION "0.10"
+-#define DRV_RELDATE "04Mar2008"
++#define DRV_VERSION "0.20"
++#define DRV_RELDATE "15Sep2017"
+
+ #define STATION_ADDRESS_HIGH(dev) (((dev)->dev_addr[0] << 8) | \
+ ((dev)->dev_addr[1]))
--
2.20.1
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