[PATCH 37/52] mips: octeon: Add cvmx-pko3-compat.c
Stefan Roese
sr at denx.de
Wed Mar 30 12:07:13 CEST 2022
From: Aaron Williams <awilliams at marvell.com>
Import cvmx-pko3-compat.c from 2013 U-Boot. It will be used by the later
added drivers to support networking on the MIPS Octeon II / III
platforms.
Signed-off-by: Aaron Williams <awilliams at marvell.com>
Signed-off-by: Stefan Roese <sr at denx.de>
---
arch/mips/mach-octeon/cvmx-pko3-compat.c | 656 +++++++++++++++++++++++
1 file changed, 656 insertions(+)
create mode 100644 arch/mips/mach-octeon/cvmx-pko3-compat.c
diff --git a/arch/mips/mach-octeon/cvmx-pko3-compat.c b/arch/mips/mach-octeon/cvmx-pko3-compat.c
new file mode 100644
index 000000000000..3e142322dbfb
--- /dev/null
+++ b/arch/mips/mach-octeon/cvmx-pko3-compat.c
@@ -0,0 +1,656 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2018-2022 Marvell International Ltd.
+ *
+ */
+
+#include <errno.h>
+#include <log.h>
+#include <time.h>
+#include <linux/delay.h>
+
+#include <mach/cvmx-regs.h>
+#include <mach/cvmx-csr.h>
+#include <mach/cvmx-bootmem.h>
+#include <mach/octeon-model.h>
+#include <mach/cvmx-fuse.h>
+#include <mach/octeon-feature.h>
+#include <mach/cvmx-qlm.h>
+#include <mach/octeon_qlm.h>
+#include <mach/cvmx-pcie.h>
+#include <mach/cvmx-coremask.h>
+
+#include <mach/cvmx-agl-defs.h>
+#include <mach/cvmx-bgxx-defs.h>
+#include <mach/cvmx-ciu-defs.h>
+#include <mach/cvmx-gmxx-defs.h>
+#include <mach/cvmx-gserx-defs.h>
+#include <mach/cvmx-ilk-defs.h>
+#include <mach/cvmx-ipd-defs.h>
+#include <mach/cvmx-pcsx-defs.h>
+#include <mach/cvmx-pcsxx-defs.h>
+#include <mach/cvmx-pki-defs.h>
+#include <mach/cvmx-pko-defs.h>
+#include <mach/cvmx-xcv-defs.h>
+
+#include <mach/cvmx-scratch.h>
+#include <mach/cvmx-hwfau.h>
+#include <mach/cvmx-fau.h>
+
+#include <mach/cvmx-hwpko.h>
+#include <mach/cvmx-ilk.h>
+#include <mach/cvmx-pki.h>
+#include <mach/cvmx-pko3.h>
+#include <mach/cvmx-pko3-queue.h>
+#include <mach/cvmx-pko3-resources.h>
+
+#include <mach/cvmx-helper.h>
+#include <mach/cvmx-helper-board.h>
+#include <mach/cvmx-helper-cfg.h>
+
+#include <mach/cvmx-helper-bgx.h>
+#include <mach/cvmx-helper-cfg.h>
+#include <mach/cvmx-helper-util.h>
+#include <mach/cvmx-helper-pki.h>
+
+/* #undef CVMX_ENABLE_PARAMETER_CHECKING */
+/* #define CVMX_ENABLE_PARAMETER_CHECKING 1 */
+/* #define __PKO3_NATIVE_PTR */
+
+static inline u64 cvmx_pko3_legacy_paddr(unsigned int node, u64 addr)
+{
+ u64 paddr;
+
+ paddr = node;
+ paddr = (addr & ((1ull << 40) - 1)) | (paddr << 40);
+ return paddr;
+}
+
+#if CVMX_ENABLE_PARAMETER_CHECKING
+/**
+ * @INTERNAL
+ *
+ * Verify the integrity of a legacy buffer link pointer,
+ *
+ * Note that the IPD/PIP/PKO hardware would sometimes
+ * round-up the buf_ptr->size field of the last buffer in a chain to the next
+ * cache line size, so the sum of buf_ptr->size
+ * fields for a packet may exceed total_bytes by up to 127 bytes.
+ *
+ * @returns 0 on success, a negative number on error.
+ */
+static int cvmx_pko3_legacy_bufptr_validate(cvmx_buf_ptr_t buf_ptr,
+ unsigned int gather,
+ unsigned int buffers,
+ unsigned int total_bytes)
+{
+ unsigned int node = cvmx_get_node_num();
+ unsigned int segs = 0, bytes = 0;
+ unsigned int phys_addr;
+ cvmx_buf_ptr_t ptr;
+ int delta;
+
+ if (buffers == 0) {
+ return -1;
+ } else if (buffers == 1) {
+ delta = buf_ptr.s.size - total_bytes;
+ if (delta < 0 || delta > 127)
+ return -2;
+ } else if (gather) {
+ cvmx_buf_ptr_t *vptr;
+ /* Validate gather list */
+ if (buf_ptr.s.size < buffers)
+ return -3;
+ phys_addr = cvmx_pko3_legacy_paddr(node, buf_ptr.s.addr);
+ vptr = cvmx_phys_to_ptr(phys_addr);
+ for (segs = 0; segs < buffers; segs++)
+ bytes += vptr[segs].s.size;
+ delta = bytes - total_bytes;
+ if (delta < 0 || delta > 127)
+ return -4;
+ } else {
+ void *vptr;
+ /* Validate linked buffers */
+ ptr = buf_ptr;
+ for (segs = 0; segs < buffers; segs++) {
+ bytes += ptr.s.size;
+ phys_addr = cvmx_pko3_legacy_paddr(node, ptr.s.addr);
+ vptr = cvmx_phys_to_ptr(phys_addr);
+ memcpy(&ptr, vptr - sizeof(u64), sizeof(u64));
+ }
+ delta = bytes - total_bytes;
+ if (delta < 0 || delta > 127)
+ return -5;
+ }
+ return 0;
+}
+#endif /* CVMX_ENABLE_PARAMETER_CHECKING */
+
+/*
+ * @INTERNAL
+ *
+ * Implementation note:
+ * When the packet is sure to not need a jump_buf,
+ * it will be written directly into cvmseg.
+ * When the packet might not fit into cvmseg with all
+ * of its descriptors, a jump_buf is allocated a priori,
+ * and only header is first placed into cvmseg, all other
+ * descriptors are placed into jump_buf, and finally
+ * the PKO_SEND_JUMP_S is written to cvmseg.
+ * This is because if there are no EXT or TSO descriptors,
+ * then HDR must be first, and JMP second and that is all
+ * that should go into cvmseg.
+ */
+struct __cvmx_pko3_legacy_desc {
+ u64 *cmd_words;
+ u64 *jump_buf_base_ptr;
+ unsigned short word_count;
+ short last_pool;
+ u8 port_node;
+ u8 aura_node;
+ u8 jump_buf_size;
+};
+
+/**
+ * @INTERNAL
+ *
+ * Add a subdescriptor into a command buffer,
+ * and handle command-buffer overflow by allocating a JUMP_s buffer
+ * from PKO3 internal AURA.
+ */
+static int __cvmx_pko3_cmd_subdc_add(struct __cvmx_pko3_legacy_desc *desc,
+ u64 subdc)
+{
+ /* SEND_JUMP_S missing on Pass1.X */
+ if (desc->word_count >= 15) {
+ printf("%s: ERROR: too many segments\n", __func__);
+ return -EBADF;
+ }
+
+ /* Handle small commands simply */
+ if (cvmx_likely(!desc->jump_buf_base_ptr)) {
+ desc->cmd_words[desc->word_count] = subdc;
+ (desc->word_count)++;
+ return desc->word_count;
+ }
+
+ if (cvmx_unlikely(desc->jump_buf_size >= 255))
+ return -ENOMEM;
+
+ desc->jump_buf_base_ptr[desc->jump_buf_size++] = subdc;
+
+ return desc->word_count + desc->jump_buf_size;
+}
+
+/**
+ * @INTERNAL
+ *
+ * Finalize command buffer
+ *
+ * @returns: number of command words in command buffer and jump buffer
+ * or negative number on error.
+ */
+
+static int __cvmx_pko3_cmd_done(struct __cvmx_pko3_legacy_desc *desc)
+{
+ short pko_aura;
+ cvmx_pko_buf_ptr_t jump_s;
+ cvmx_pko_send_aura_t aura_s;
+
+ /* no jump buffer, nothing to do */
+ if (!desc->jump_buf_base_ptr)
+ return desc->word_count;
+
+ desc->word_count++;
+
+ /* Verify number of words is 15 */
+ if (desc->word_count != 2) {
+ printf("ERROR: %s: internal error, word_count=%d\n", __func__,
+ desc->word_count);
+ return -EINVAL;
+ }
+
+ /* Add SEND_AURA_S at the end of jump_buf */
+ pko_aura = __cvmx_pko3_aura_get(desc->port_node);
+
+ aura_s.u64 = 0;
+ aura_s.s.aura = pko_aura;
+ aura_s.s.offset = 0;
+ aura_s.s.alg = AURAALG_NOP;
+ aura_s.s.subdc4 = CVMX_PKO_SENDSUBDC_AURA;
+
+ desc->jump_buf_base_ptr[desc->jump_buf_size++] = aura_s.u64;
+
+ /* Add SEND_JUMPS to point to jump_buf */
+ jump_s.u64 = 0;
+ jump_s.s.subdc3 = CVMX_PKO_SENDSUBDC_JUMP;
+ jump_s.s.addr = cvmx_ptr_to_phys(desc->jump_buf_base_ptr);
+ jump_s.s.i = 1; /* F=1: Free this buffer when done */
+ jump_s.s.size = desc->jump_buf_size;
+ desc->cmd_words[1] = jump_s.u64;
+
+ return desc->word_count + desc->jump_buf_size;
+}
+
+/**
+ * @INTERNAL
+ *
+ * Handle buffer pools for PKO legacy transmit operation
+ */
+static inline int cvmx_pko3_legacy_pool(struct __cvmx_pko3_legacy_desc *desc,
+ int pool)
+{
+ cvmx_pko_send_aura_t aura_s;
+ unsigned int aura;
+
+ if (cvmx_unlikely(desc->last_pool == pool))
+ return 0;
+
+ aura = desc->aura_node << 10; /* LAURA=AURA[0..9] */
+ aura |= pool;
+
+ if (cvmx_likely(desc->last_pool < 0)) {
+ cvmx_pko_send_hdr_t *hdr_s;
+
+ hdr_s = (void *)&desc->cmd_words[0];
+ /* Create AURA from legacy pool (assume LAURA==POOL */
+ hdr_s->s.aura = aura;
+ desc->last_pool = pool;
+ return 0;
+ }
+
+ aura_s.u64 = 0;
+ aura_s.s.subdc4 = CVMX_PKO_SENDSUBDC_AURA;
+ aura_s.s.offset = 0;
+ aura_s.s.alg = AURAALG_NOP;
+ aura |= pool;
+ aura_s.s.aura = aura;
+ desc->last_pool = pool;
+ return __cvmx_pko3_cmd_subdc_add(desc, aura_s.u64);
+}
+
+/**
+ * @INTERNAL
+ *
+ * Backward compatibility for packet transmission using legacy PKO command.
+ *
+ * NOTE: Only supports output on node-local ports.
+ *
+ * TBD: Could embed destination node in extended DQ number.
+ */
+cvmx_pko_return_value_t
+cvmx_pko3_legacy_xmit(unsigned int dq, cvmx_pko_command_word0_t pko_command,
+ cvmx_buf_ptr_t packet, u64 addr, bool tag_sw)
+{
+ cvmx_pko_query_rtn_t pko_status;
+ cvmx_pko_send_hdr_t *hdr_s;
+ struct __cvmx_pko3_legacy_desc desc;
+ u8 *data_ptr;
+ unsigned int node, seg_cnt;
+ int res;
+ cvmx_buf_ptr_pki_t bptr;
+
+ seg_cnt = pko_command.s.segs;
+ desc.cmd_words = cvmx_pko3_cvmseg_addr();
+
+ /* Allocate from local aura, assume all old-pools are local */
+ node = cvmx_get_node_num();
+ desc.aura_node = node;
+
+ /* Derive destination node from dq */
+ desc.port_node = dq >> 10;
+ dq &= (1 << 10) - 1;
+
+ desc.word_count = 1;
+ desc.last_pool = -1;
+
+ /* For small packets, write descriptors directly to CVMSEG
+ * but for longer packets use jump_buf
+ */
+ if (seg_cnt < 7 || OCTEON_IS_MODEL(OCTEON_CN78XX_PASS1_X)) {
+ desc.jump_buf_size = 0;
+ desc.jump_buf_base_ptr = NULL;
+ } else {
+ unsigned int pko_aura = __cvmx_pko3_aura_get(desc.port_node);
+
+ cvmx_fpa3_gaura_t aura =
+ __cvmx_fpa3_gaura(pko_aura >> 10, pko_aura & 0x3ff);
+
+ /* Allocate from internal AURA, size is 4KiB */
+ desc.jump_buf_base_ptr = cvmx_fpa3_alloc(aura);
+
+ if (!desc.jump_buf_base_ptr)
+ return -ENOMEM;
+ desc.jump_buf_size = 0;
+ }
+
+ /* Native buffer-pointer for error checiing */
+ bptr.u64 = packet.u64;
+
+#if CVMX_ENABLE_PARAMETER_CHECKING
+ if (seg_cnt == 1 && bptr.size == pko_command.s.total_bytes) {
+ /*
+ * Special case for native buffer pointer:
+ * This is the only case where the native pointer-style can be
+ * automatically identified, that is when an entire packet
+ * fits into a single buffer by the PKI.
+ * The use of the native buffers with this function
+ * should be avoided.
+ */
+ debug("%s: WARNING: Native buffer-pointer\n", __func__);
+ } else {
+ /* The buffer ptr is assume to be received in legacy format */
+ res = cvmx_pko3_legacy_bufptr_validate(
+ packet, pko_command.s.gather, pko_command.s.segs,
+ pko_command.s.total_bytes);
+ if (res < 0) {
+ debug("%s: ERROR: Not a valid packet pointer <%d>\n",
+ __func__, res);
+ return CVMX_PKO_CMD_QUEUE_INIT_ERROR;
+ }
+ }
+#endif /* CVMX_ENABLE_PARAMETER_CHECKING */
+
+ /* Squash warnings */
+ (void)bptr;
+
+ /*** Translate legacy PKO fields into PKO3 PKO_SEND_HDR_S ***/
+
+ /* PKO_SEND_HDR_S is alwasy the first word in the command */
+ hdr_s = (void *)&desc.cmd_words[0];
+ hdr_s->u64 = 0;
+
+ /* Copy total packet size */
+ hdr_s->s.total = pko_command.s.total_bytes;
+
+ /* Endianness */
+ hdr_s->s.le = pko_command.s.le;
+
+ /* N2 is the same meaning */
+ if (OCTEON_IS_MODEL(OCTEON_CN78XX_PASS1_X))
+ hdr_s->s.n2 = 0; /* L2 allocate everything */
+ else
+ hdr_s->s.n2 = pko_command.s.n2;
+
+ /* DF bit has the same meaning */
+ hdr_s->s.df = pko_command.s.dontfree;
+
+ /* II bit has the same meaning */
+ hdr_s->s.ii = pko_command.s.ignore_i;
+
+ /* non-zero IP header offset requires L3/L4 checksum calculation */
+ if (cvmx_unlikely(pko_command.s.ipoffp1 > 0)) {
+ u8 ipoff, ip0, l4_proto = 0;
+
+ /* Get data pointer for header inspection below */
+ if (pko_command.s.gather) {
+ cvmx_buf_ptr_t *p_ptr;
+ cvmx_buf_ptr_t blk;
+
+ p_ptr = cvmx_phys_to_ptr(
+ cvmx_pko3_legacy_paddr(node, packet.s.addr));
+ blk = p_ptr[0];
+ data_ptr = cvmx_phys_to_ptr(
+ cvmx_pko3_legacy_paddr(node, blk.s.addr));
+ } else {
+ data_ptr = cvmx_phys_to_ptr(
+ cvmx_pko3_legacy_paddr(node, packet.s.addr));
+ }
+
+ /* Get IP header offset */
+ ipoff = pko_command.s.ipoffp1 - 1;
+
+ /* Parse IP header, version, L4 protocol */
+ hdr_s->s.l3ptr = ipoff;
+ ip0 = data_ptr[ipoff];
+
+ /* IPv4 header length, checksum offload */
+ if ((ip0 >> 4) == 4) {
+ hdr_s->s.l4ptr = hdr_s->s.l3ptr + ((ip0 & 0xf) << 2);
+ l4_proto = data_ptr[ipoff + 9];
+ hdr_s->s.ckl3 = 1; /* Only valid for IPv4 */
+ }
+ /* IPv6 header length is fixed, no checksum */
+ if ((ip0 >> 4) == 6) {
+ hdr_s->s.l4ptr = hdr_s->s.l3ptr + 40;
+ l4_proto = data_ptr[ipoff + 6];
+ }
+ /* Set L4 checksum algo based on L4 protocol */
+ if (l4_proto == 6)
+ hdr_s->s.ckl4 = /* TCP */ 2;
+ else if (l4_proto == 17)
+ hdr_s->s.ckl4 = /* UDP */ 1;
+ else if (l4_proto == 132)
+ hdr_s->s.ckl4 = /* SCTP */ 3;
+ else
+ hdr_s->s.ckl4 = /* Unknown */ 0;
+ }
+
+ if (pko_command.s.gather) {
+ /* Process legacy gather list */
+ cvmx_pko_buf_ptr_t gather_s;
+ cvmx_buf_ptr_t *p_ptr;
+ cvmx_buf_ptr_t blk;
+ unsigned int i;
+
+ /* Get gather list pointer */
+ p_ptr = cvmx_phys_to_ptr(
+ cvmx_pko3_legacy_paddr(node, packet.s.addr));
+ blk = p_ptr[0];
+ /* setup data_ptr */
+ data_ptr = cvmx_phys_to_ptr(
+ cvmx_pko3_legacy_paddr(node, blk.s.addr));
+
+ for (i = 0; i < seg_cnt; i++) {
+ if (cvmx_unlikely(cvmx_pko3_legacy_pool(
+ &desc, blk.s.pool) < 0))
+ return CVMX_PKO_NO_MEMORY;
+
+ /* Insert PKO_SEND_GATHER_S for the current buffer */
+ gather_s.u64 = 0;
+ gather_s.s.subdc3 = CVMX_PKO_SENDSUBDC_GATHER;
+ gather_s.s.size = blk.s.size;
+ gather_s.s.i = blk.s.i;
+ gather_s.s.addr =
+ cvmx_pko3_legacy_paddr(node, blk.s.addr);
+
+ res = __cvmx_pko3_cmd_subdc_add(&desc, gather_s.u64);
+ if (res < 0)
+ return CVMX_PKO_NO_MEMORY;
+
+ /* get next bufptr */
+ blk = p_ptr[i + 1];
+ } /* for i */
+
+ /* Free original gather-list buffer */
+ if ((pko_command.s.ignore_i && !pko_command.s.dontfree) ||
+ packet.s.i == pko_command.s.dontfree)
+ cvmx_fpa_free_nosync(p_ptr, packet.s.pool,
+ (i - 1) / 16 + 1);
+ } else {
+ /* Process legacy linked buffer list */
+ cvmx_pko_buf_ptr_t gather_s;
+ cvmx_buf_ptr_t blk;
+ void *vptr;
+
+ data_ptr = cvmx_phys_to_ptr(
+ cvmx_pko3_legacy_paddr(node, packet.s.addr));
+ blk = packet;
+
+ /*
+ * Legacy linked-buffers converted into flat gather list
+ * so that the AURA can optionally be changed to reflect
+ * the POOL number in the legacy pointers
+ */
+ do {
+ /* Insert PKO_SEND_AURA_S if pool changes */
+ if (cvmx_unlikely(cvmx_pko3_legacy_pool(
+ &desc, blk.s.pool) < 0))
+ return CVMX_PKO_NO_MEMORY;
+
+ /* Insert PKO_SEND_GATHER_S for the current buffer */
+ gather_s.u64 = 0;
+ gather_s.s.subdc3 = CVMX_PKO_SENDSUBDC_GATHER;
+ gather_s.s.size = blk.s.size;
+ gather_s.s.i = blk.s.i;
+ gather_s.s.addr =
+ cvmx_pko3_legacy_paddr(node, blk.s.addr);
+
+ res = __cvmx_pko3_cmd_subdc_add(&desc, gather_s.u64);
+ if (res < 0)
+ return CVMX_PKO_NO_MEMORY;
+
+ /* Get the next buffer pointer */
+ vptr = cvmx_phys_to_ptr(
+ cvmx_pko3_legacy_paddr(node, blk.s.addr));
+ memcpy(&blk, vptr - sizeof(blk), sizeof(blk));
+
+ /* Decrement segment count */
+ seg_cnt--;
+
+ } while (seg_cnt > 0);
+ }
+
+ /* This field indicates the presence of 3rd legacy command word */
+ /* NOTE: legacy 3rd word may contain CN78XX native phys addr already */
+ if (cvmx_unlikely(pko_command.s.rsp)) {
+ /* PTP bit in word3 is not supported -
+ * can not be distibguished from larger phys_addr[42..41]
+ */
+ if (pko_command.s.wqp) {
+ /* <addr> is an SSO WQE */
+ cvmx_wqe_word1_t *wqe_p;
+ cvmx_pko_send_work_t work_s;
+
+ work_s.u64 = 0;
+ work_s.s.subdc4 = CVMX_PKO_SENDSUBDC_WORK;
+ work_s.s.addr = addr;
+ /* Assume WQE is legacy format too */
+ wqe_p = cvmx_phys_to_ptr(addr + sizeof(u64));
+ work_s.s.grp = wqe_p->cn38xx.grp;
+ work_s.s.tt = wqe_p->tag_type;
+
+ res = __cvmx_pko3_cmd_subdc_add(&desc, work_s.u64);
+ } else {
+ cvmx_pko_send_mem_t mem_s;
+ /* MEMALG_SET broken on Pass1 */
+ if (OCTEON_IS_MODEL(OCTEON_CN78XX_PASS1_0)) {
+ debug("%s: ERROR: PKO byte-clear not supported\n",
+ __func__);
+ }
+ /* <addr> is a physical address of byte clear */
+ mem_s.u64 = 0;
+ mem_s.s.subdc4 = CVMX_PKO_SENDSUBDC_MEM;
+ mem_s.s.addr = addr;
+ mem_s.s.dsz = MEMDSZ_B8;
+ mem_s.s.alg = MEMALG_SET;
+ mem_s.s.offset = 0;
+
+ res = __cvmx_pko3_cmd_subdc_add(&desc, mem_s.u64);
+ }
+ if (res < 0)
+ return CVMX_PKO_NO_MEMORY;
+ }
+
+ /* FAU counter binding reg0 */
+ if (pko_command.s.reg0) {
+ cvmx_pko_send_mem_t mem_s;
+
+ debug("%s: Legacy FAU commands: reg0=%#x sz0=%#x\n", __func__,
+ pko_command.s.reg0, pko_command.s.size0);
+ mem_s.u64 = 0;
+ mem_s.s.subdc4 = CVMX_PKO_SENDSUBDC_MEM;
+ mem_s.s.addr = cvmx_ptr_to_phys(
+ CASTPTR(void, __cvmx_fau_sw_addr(pko_command.s.reg0)));
+ if (cvmx_likely(pko_command.s.size0 == CVMX_FAU_OP_SIZE_64))
+ mem_s.s.dsz = MEMDSZ_B64;
+ else if (pko_command.s.size0 == CVMX_FAU_OP_SIZE_32)
+ mem_s.s.dsz = MEMDSZ_B32;
+ else if (pko_command.s.size0 == CVMX_FAU_OP_SIZE_16)
+ mem_s.s.dsz = MEMDSZ_B16;
+ else
+ mem_s.s.dsz = MEMDSZ_B8;
+
+ if (mem_s.s.dsz == MEMDSZ_B16 || mem_s.s.dsz == MEMDSZ_B8)
+ debug("%s: ERROR: 8/16 bit decrement unsupported",
+ __func__);
+
+ mem_s.s.offset = pko_command.s.subone0;
+ if (mem_s.s.offset)
+ mem_s.s.alg = MEMALG_SUB;
+ else
+ mem_s.s.alg = MEMALG_SUBLEN;
+
+ res = __cvmx_pko3_cmd_subdc_add(&desc, mem_s.u64);
+ if (res < 0)
+ return CVMX_PKO_NO_MEMORY;
+ }
+
+ /* FAU counter binding reg1 */
+ if (cvmx_unlikely(pko_command.s.reg1)) {
+ cvmx_pko_send_mem_t mem_s;
+
+ debug("%s: Legacy FAU commands: reg1=%#x sz1=%#x\n", __func__,
+ pko_command.s.reg1, pko_command.s.size1);
+ mem_s.u64 = 0;
+ mem_s.s.subdc4 = CVMX_PKO_SENDSUBDC_MEM;
+ mem_s.s.addr = cvmx_ptr_to_phys(
+ CASTPTR(void, __cvmx_fau_sw_addr(pko_command.s.reg1)));
+ if (cvmx_likely(pko_command.s.size1 == CVMX_FAU_OP_SIZE_64))
+ mem_s.s.dsz = MEMDSZ_B64;
+ else if (pko_command.s.size1 == CVMX_FAU_OP_SIZE_32)
+ mem_s.s.dsz = MEMDSZ_B32;
+ else if (pko_command.s.size1 == CVMX_FAU_OP_SIZE_16)
+ mem_s.s.dsz = MEMDSZ_B16;
+ else
+ mem_s.s.dsz = MEMDSZ_B8;
+
+ if (mem_s.s.dsz == MEMDSZ_B16 || mem_s.s.dsz == MEMDSZ_B8)
+ printf("%s: ERROR: 8/16 bit decrement unsupported",
+ __func__);
+
+ mem_s.s.offset = pko_command.s.subone1;
+ if (mem_s.s.offset)
+ mem_s.s.alg = MEMALG_SUB;
+ else
+ mem_s.s.alg = MEMALG_SUBLEN;
+
+ res = __cvmx_pko3_cmd_subdc_add(&desc, mem_s.u64);
+ if (res < 0)
+ return CVMX_PKO_NO_MEMORY;
+ }
+
+ /* These PKO_HDR_S fields are not used: */
+ /* hdr_s->s.ds does not have legacy equivalent, remains 0 */
+ /* hdr_s->s.format has no legacy equivalent, remains 0 */
+
+ /*** Finalize command buffer ***/
+ res = __cvmx_pko3_cmd_done(&desc);
+ if (res < 0)
+ return CVMX_PKO_NO_MEMORY;
+
+ /*** Send the PKO3 command into the Descriptor Queue ***/
+ pko_status =
+ __cvmx_pko3_lmtdma(desc.port_node, dq, desc.word_count, tag_sw);
+
+ /*** Map PKO3 result codes to legacy return values ***/
+ if (cvmx_likely(pko_status.s.dqstatus == PKO_DQSTATUS_PASS))
+ return CVMX_PKO_SUCCESS;
+
+ debug("%s: ERROR: failed to enqueue: %s\n", __func__,
+ pko_dqstatus_error(pko_status.s.dqstatus));
+
+ if (pko_status.s.dqstatus == PKO_DQSTATUS_ALREADY)
+ return CVMX_PKO_PORT_ALREADY_SETUP;
+ if (pko_status.s.dqstatus == PKO_DQSTATUS_NOFPABUF ||
+ pko_status.s.dqstatus == PKO_DQSTATUS_NOPKOBUF)
+ return CVMX_PKO_NO_MEMORY;
+ if (pko_status.s.dqstatus == PKO_DQSTATUS_NOTCREATED)
+ return CVMX_PKO_INVALID_QUEUE;
+ if (pko_status.s.dqstatus == PKO_DQSTATUS_BADSTATE)
+ return CVMX_PKO_CMD_QUEUE_INIT_ERROR;
+ if (pko_status.s.dqstatus == PKO_DQSTATUS_SENDPKTDROP)
+ return CVMX_PKO_INVALID_PORT;
+
+ return CVMX_PKO_INVALID_PORT;
+}
--
2.35.1
More information about the U-Boot
mailing list