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net: ionic: Provide RDMA reset support for the RDMA driver

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The Ethernet driver holds the privilege to execute the device commands.
Export the function to execute RDMA reset command for use by RDMA driver.

Reviewed-by: Shannon Nelson <shannon.nelson@amd.com>
Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com>
Link: https://patch.msgid.link/20250903061606.4139957-5-abhijit.gangurde@amd.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
This commit is contained in:
Abhijit Gangurde 2025-09-03 11:45:56 +05:30 committed by Leon Romanovsky
parent 089bbf4836
commit 0e02faffdb
2 changed files with 31 additions and 0 deletions
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9
drivers/net/ethernet/pensando/ionic/ionic_api.h
View File

@ -54,4 +54,13 @@ int ionic_adminq_post_wait(struct ionic_lif *lif, struct ionic_admin_ctx *ctx);
*/
int ionic_error_to_errno(enum ionic_status_code code);
/**
* ionic_request_rdma_reset - request reset or disable the device or lif
* @lif: Logical interface
*
* The reset is triggered asynchronously. It will wait until reset request
* completes or times out.
*/
void ionic_request_rdma_reset(struct ionic_lif *lif);
#endif /* _IONIC_API_H_ */

22
drivers/net/ethernet/pensando/ionic/ionic_aux.c
View File

@ -78,3 +78,25 @@ void ionic_auxbus_unregister(struct ionic_lif *lif)
out:
mutex_unlock(&lif->adev_lock);
}
void ionic_request_rdma_reset(struct ionic_lif *lif)
{
struct ionic *ionic = lif->ionic;
int err;
union ionic_dev_cmd cmd = {
.cmd.opcode = IONIC_CMD_RDMA_RESET_LIF,
.cmd.lif_index = cpu_to_le16(lif->index),
};
mutex_lock(&ionic->dev_cmd_lock);
ionic_dev_cmd_go(&ionic->idev, &cmd);
err = ionic_dev_cmd_wait(ionic, DEVCMD_TIMEOUT);
mutex_unlock(&ionic->dev_cmd_lock);
if (err)
pr_warn("%s request_reset: error %d\n", __func__, err);
}
EXPORT_SYMBOL_NS(ionic_request_rdma_reset, "NET_IONIC");