[v2,12/16] common/qat: reset ring pairs before setting gen4
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Commit Message
This commit resets ring pairs of particular vf before
setting PMD.
Signed-off-by: Arek Kusztal <arkadiuszx.kusztal@intel.com>
---
drivers/common/qat/qat_device.c | 32 ++++++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)
Comments
> -----Original Message-----
> From: Kusztal, ArkadiuszX <arkadiuszx.kusztal@intel.com>
> Sent: Monday, June 28, 2021 5:35 PM
> To: dev@dpdk.org
> Cc: gakhil@marvell.com; Trahe, Fiona <fiona.trahe@intel.com>; Zhang, Roy
> Fan <roy.fan.zhang@intel.com>; Kusztal, ArkadiuszX
> <arkadiuszx.kusztal@intel.com>
> Subject: [PATCH v2 12/16] common/qat: reset ring pairs before setting gen4
>
> This commit resets ring pairs of particular vf before
> setting PMD.
>
> Signed-off-by: Arek Kusztal <arkadiuszx.kusztal@intel.com>
Acked-by: Fan Zhang <roy.fan.zhang@intel.com>
@@ -11,6 +11,7 @@
#include "qat_sym_pmd.h"
#include "qat_comp_pmd.h"
#include "adf_pf2vf_msg.h"
+#include "qat_pf2vf.h"
/* pv2vf data Gen 4*/
struct qat_pf2vf_dev qat_pf2vf_gen4 = {
@@ -125,6 +126,28 @@ qat_get_qat_dev_from_pci_dev(struct rte_pci_device *pci_dev)
return qat_pci_get_named_dev(name);
}
+static int
+qat_gen4_reset_ring_pair(struct qat_pci_device *qat_pci_dev)
+{
+ int ret = 0, i;
+ uint8_t data[4];
+ struct qat_pf2vf_msg pf2vf_msg;
+
+ pf2vf_msg.msg_type = ADF_VF2PF_MSGTYPE_RP_RESET;
+ pf2vf_msg.block_hdr = -1;
+ for (i = 0; i < QAT_GEN4_BUNDLE_NUM; i++) {
+ pf2vf_msg.msg_data = i;
+ ret = qat_pf2vf_exch_msg(qat_pci_dev, pf2vf_msg, 1, data);
+ if (ret) {
+ QAT_LOG(ERR, "QAT error when reset bundle no %d",
+ i);
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
static void qat_dev_parse_cmd(const char *str, struct qat_dev_cmd_param
*qat_dev_cmd_param)
{
@@ -371,6 +394,15 @@ static int qat_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
if (qat_pci_dev == NULL)
return -ENODEV;
+ if (qat_pci_dev->qat_dev_gen == QAT_GEN4) {
+ if (qat_gen4_reset_ring_pair(qat_pci_dev)) {
+ QAT_LOG(ERR,
+ "Cannot reset ring pairs, does pf driver supports pf2vf comms?"
+ );
+ return -ENODEV;
+ }
+ }
+
sym_ret = qat_sym_dev_create(qat_pci_dev, qat_dev_cmd_param);
if (sym_ret == 0) {
num_pmds_created++;