forked from luck/tmp_suning_uos_patched
IB/srp: Sync buffer before posting send
srp_send_tsk_mgmt() was missing the proper DMA sync calls before posting the buffer to the device. Signed-off-by: David Dillow <dillowda@ornl.gov> Signed-off-by: Roland Dreier <rolandd@cisco.com>
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21c1a90769
commit
19081f31ce
@ -1442,6 +1442,7 @@ static int srp_cm_handler(struct ib_cm_id *cm_id, struct ib_cm_event *event)
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static int srp_send_tsk_mgmt(struct srp_target_port *target,
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struct srp_request *req, u8 func)
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{
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struct ib_device *dev = target->srp_host->srp_dev->dev;
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struct srp_iu *iu;
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struct srp_tsk_mgmt *tsk_mgmt;
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@ -1459,6 +1460,8 @@ static int srp_send_tsk_mgmt(struct srp_target_port *target,
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if (!iu)
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goto out;
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ib_dma_sync_single_for_cpu(dev, iu->dma, sizeof *tsk_mgmt,
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DMA_TO_DEVICE);
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tsk_mgmt = iu->buf;
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memset(tsk_mgmt, 0, sizeof *tsk_mgmt);
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@ -1468,6 +1471,8 @@ static int srp_send_tsk_mgmt(struct srp_target_port *target,
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tsk_mgmt->tsk_mgmt_func = func;
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tsk_mgmt->task_tag = req->index;
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ib_dma_sync_single_for_device(dev, iu->dma, sizeof *tsk_mgmt,
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DMA_TO_DEVICE);
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if (__srp_post_send(target, iu, sizeof *tsk_mgmt))
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goto out;
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