[PATCH v5 07/29] baseband/acc100: enforce additional check on FCW
Hernan Vargas
hernan.vargas at intel.com
Fri Oct 21 07:20:40 CEST 2022
Enforce additional check on Frame Control Word validity and add stronger
alignment for decompression mode.
Fixes: 5ad5060f8f7 ("baseband/acc100: add LDPC processing functions")
Cc: stable at dpdk.org
Signed-off-by: Hernan Vargas <hernan.vargas at intel.com>
---
drivers/baseband/acc/acc100_pmd.h | 1 +
drivers/baseband/acc/acc_common.h | 1 +
drivers/baseband/acc/rte_acc100_pmd.c | 71 ++++++++++++++++++++++-----
3 files changed, 62 insertions(+), 11 deletions(-)
diff --git a/drivers/baseband/acc/acc100_pmd.h b/drivers/baseband/acc/acc100_pmd.h
index 9486e98521..eb6349c85a 100644
--- a/drivers/baseband/acc/acc100_pmd.h
+++ b/drivers/baseband/acc/acc100_pmd.h
@@ -87,6 +87,7 @@
#define ACC100_HARQ_DDR (512 * 1)
#define ACC100_PRQ_DDR_VER 0x10092020
#define ACC100_DDR_TRAINING_MAX (5000)
+#define ACC100_HARQ_ALIGN_COMP 256
struct acc100_registry_addr {
unsigned int dma_ring_dl5g_hi;
diff --git a/drivers/baseband/acc/acc_common.h b/drivers/baseband/acc/acc_common.h
index 6f141c95ce..97d10b8b40 100644
--- a/drivers/baseband/acc/acc_common.h
+++ b/drivers/baseband/acc/acc_common.h
@@ -120,6 +120,7 @@
#define ACC_ALGO_SPA 0
#define ACC_ALGO_MSA 1
+#define ACC_HARQ_ALIGN_64B 64
/* Helper macro for logging */
#define rte_acc_log(level, fmt, ...) \
diff --git a/drivers/baseband/acc/rte_acc100_pmd.c b/drivers/baseband/acc/rte_acc100_pmd.c
index e8ec70d954..13a762cb80 100644
--- a/drivers/baseband/acc/rte_acc100_pmd.c
+++ b/drivers/baseband/acc/rte_acc100_pmd.c
@@ -1040,6 +1040,7 @@ acc100_fcw_ld_fill(struct rte_bbdev_dec_op *op, struct acc_fcw_ld *fcw,
uint16_t harq_index;
uint32_t l;
bool harq_prun = false;
+ uint32_t max_hc_in;
fcw->qm = op->ldpc_dec.q_m;
fcw->nfiller = op->ldpc_dec.n_filler;
@@ -1089,13 +1090,22 @@ acc100_fcw_ld_fill(struct rte_bbdev_dec_op *op, struct acc_fcw_ld *fcw,
harq_in_length = op->ldpc_dec.harq_combined_input.length;
if (fcw->hcin_decomp_mode > 0)
harq_in_length = harq_in_length * 8 / 6;
- harq_in_length = RTE_ALIGN(harq_in_length, 64);
- if ((harq_layout[harq_index].offset > 0) & harq_prun) {
+
+ harq_in_length = RTE_MIN(harq_in_length, op->ldpc_dec.n_cb
+ - op->ldpc_dec.n_filler);
+
+ /* Alignment on next 64B - Already enforced from HC output */
+ harq_in_length = RTE_ALIGN_FLOOR(harq_in_length, ACC_HARQ_ALIGN_64B);
+
+ /* Stronger alignment requirement when in decompression mode */
+ if (fcw->hcin_decomp_mode > 0)
+ harq_in_length = RTE_ALIGN_FLOOR(harq_in_length, ACC100_HARQ_ALIGN_COMP);
+
+ if ((harq_layout[harq_index].offset > 0) && harq_prun) {
rte_bbdev_log_debug("HARQ IN offset unexpected for now\n");
fcw->hcin_size0 = harq_layout[harq_index].size0;
fcw->hcin_offset = harq_layout[harq_index].offset;
- fcw->hcin_size1 = harq_in_length -
- harq_layout[harq_index].offset;
+ fcw->hcin_size1 = harq_in_length - harq_layout[harq_index].offset;
} else {
fcw->hcin_size0 = harq_in_length;
fcw->hcin_offset = 0;
@@ -1107,6 +1117,21 @@ acc100_fcw_ld_fill(struct rte_bbdev_dec_op *op, struct acc_fcw_ld *fcw,
fcw->hcin_size1 = 0;
}
+ /* Enforce additional check on FCW validity */
+ max_hc_in = RTE_ALIGN_CEIL(fcw->ncb - fcw->nfiller, ACC_HARQ_ALIGN_64B);
+ if ((fcw->hcin_size0 > max_hc_in) ||
+ (fcw->hcin_size1 + fcw->hcin_offset > max_hc_in) ||
+ ((fcw->hcin_size0 > fcw->hcin_offset) &&
+ (fcw->hcin_size1 != 0))) {
+ rte_bbdev_log(ERR, " Invalid FCW : HCIn %d %d %d, Ncb %d F %d",
+ fcw->hcin_size0, fcw->hcin_size1,
+ fcw->hcin_offset,
+ fcw->ncb, fcw->nfiller);
+ /* Disable HARQ input in that case to carry forward */
+ op->ldpc_dec.op_flags ^= RTE_BBDEV_LDPC_HQ_COMBINE_IN_ENABLE;
+ fcw->hcin_en = 0;
+ }
+
fcw->itmax = op->ldpc_dec.iter_max;
fcw->itstop = check_bit(op->ldpc_dec.op_flags,
RTE_BBDEV_LDPC_ITERATION_STOP_ENABLE);
@@ -1131,15 +1156,27 @@ acc100_fcw_ld_fill(struct rte_bbdev_dec_op *op, struct acc_fcw_ld *fcw,
if (fcw->hcout_en > 0) {
parity_offset = (op->ldpc_dec.basegraph == 1 ? 20 : 8)
* op->ldpc_dec.z_c - op->ldpc_dec.n_filler;
- k0_p = (fcw->k0 > parity_offset) ?
- fcw->k0 - op->ldpc_dec.n_filler : fcw->k0;
+ k0_p = (fcw->k0 > parity_offset) ? fcw->k0 - op->ldpc_dec.n_filler : fcw->k0;
ncb_p = fcw->ncb - op->ldpc_dec.n_filler;
- l = k0_p + fcw->rm_e;
+ l = RTE_MIN(k0_p + fcw->rm_e, INT16_MAX);
harq_out_length = (uint16_t) fcw->hcin_size0;
- harq_out_length = RTE_MIN(RTE_MAX(harq_out_length, l), ncb_p);
- harq_out_length = (harq_out_length + 0x3F) & 0xFFC0;
- if ((k0_p > fcw->hcin_size0 + ACC_HARQ_OFFSET_THRESHOLD) &&
- harq_prun) {
+ harq_out_length = RTE_MAX(harq_out_length, l);
+
+ /* Stronger alignment when in compression mode */
+ if (fcw->hcout_comp_mode > 0)
+ harq_out_length = RTE_ALIGN_CEIL(harq_out_length, ACC100_HARQ_ALIGN_COMP);
+
+ /* Cannot exceed the pruned Ncb circular buffer */
+ harq_out_length = RTE_MIN(harq_out_length, ncb_p);
+
+ /* Alignment on next 64B */
+ harq_out_length = RTE_ALIGN_CEIL(harq_out_length, ACC_HARQ_ALIGN_64B);
+
+ /* Stronger alignment when in compression mode enforced again */
+ if (fcw->hcout_comp_mode > 0)
+ harq_out_length = RTE_ALIGN_FLOOR(harq_out_length, ACC100_HARQ_ALIGN_COMP);
+
+ if ((k0_p > fcw->hcin_size0 + ACC_HARQ_OFFSET_THRESHOLD) && harq_prun) {
fcw->hcout_size0 = (uint16_t) fcw->hcin_size0;
fcw->hcout_offset = k0_p & 0xFFC0;
fcw->hcout_size1 = harq_out_length - fcw->hcout_offset;
@@ -1148,6 +1185,14 @@ acc100_fcw_ld_fill(struct rte_bbdev_dec_op *op, struct acc_fcw_ld *fcw,
fcw->hcout_size1 = 0;
fcw->hcout_offset = 0;
}
+
+ if (fcw->hcout_size0 == 0) {
+ rte_bbdev_log(ERR, " Invalid FCW : HCout %d",
+ fcw->hcout_size0);
+ op->ldpc_dec.op_flags ^= RTE_BBDEV_LDPC_HQ_COMBINE_OUT_ENABLE;
+ fcw->hcout_en = 0;
+ }
+
harq_layout[harq_index].offset = fcw->hcout_offset;
harq_layout[harq_index].size0 = fcw->hcout_size0;
} else {
@@ -1188,6 +1233,10 @@ acc101_fcw_ld_fill(struct rte_bbdev_dec_op *op, struct acc_fcw_ld *fcw,
/* Disable HARQ input in that case to carry forward */
op->ldpc_dec.op_flags ^= RTE_BBDEV_LDPC_HQ_COMBINE_IN_ENABLE;
}
+ if (unlikely(fcw->rm_e == 0)) {
+ rte_bbdev_log(WARNING, "Null E input provided");
+ fcw->rm_e = 2;
+ }
fcw->hcin_en = check_bit(op->ldpc_dec.op_flags,
RTE_BBDEV_LDPC_HQ_COMBINE_IN_ENABLE);
--
2.37.1
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