On 8/20/22 04:31, Hernan Vargas wrote:
Enforce additional check on Frame Control Word validity and add stronger
alignment for decompression mode.
As on previous patches, it is a fix and so should be marked
appropriately and moved at the beginning of the series.
Signed-off-by: Hernan Vargas <hernan.var...@intel.com>
---
drivers/baseband/acc100/rte_acc100_pmd.c | 40 ++++++++++++++++++++++--
1 file changed, 37 insertions(+), 3 deletions(-)
diff --git a/drivers/baseband/acc100/rte_acc100_pmd.c
b/drivers/baseband/acc100/rte_acc100_pmd.c
index ea850e2d7f..d67495ac52 100644
--- a/drivers/baseband/acc100/rte_acc100_pmd.c
+++ b/drivers/baseband/acc100/rte_acc100_pmd.c
@@ -1508,6 +1508,20 @@ acc100_fcw_ld_fill(struct rte_bbdev_dec_op *op, struct
acc100_fcw_ld *fcw,
fcw->hcin_offset = 0;
fcw->hcin_size1 = 0;
}
+ /* Enforce additional check on FCW validity */
+ uint32_t max_hc_in = RTE_ALIGN_CEIL(fcw->ncb - fcw->nfiller, 64);
Don't mix declaration and code.
+ 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,
@@ -1536,10 +1550,19 @@ acc100_fcw_ld_fill(struct rte_bbdev_dec_op *op, struct
acc100_fcw_ld *fcw,
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;
+ 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, 256);
A define would make sense instead of raw value
+ /* 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, 64);
+ /* Stronger alignment when in compression mode enforced again */
+ if (fcw->hcout_comp_mode > 0)
+ harq_out_length = RTE_ALIGN_FLOOR(harq_out_length, 256);
if ((k0_p > fcw->hcin_size0 + ACC100_HARQ_OFFSET_THRESHOLD) &&
harq_prun) {
fcw->hcout_size0 = (uint16_t) fcw->hcin_size0;
@@ -1550,6 +1573,13 @@ acc100_fcw_ld_fill(struct rte_bbdev_dec_op *op, struct
acc100_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 {
@@ -1591,6 +1621,10 @@ acc101_fcw_ld_fill(struct rte_bbdev_dec_op *op, struct
acc100_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);
