Hi Can, On Mon, 2021-05-24 at 01:36 -0700, Can Guo wrote: > Current UFS IRQ handler is completely wrapped by host lock, and because > ufshcd_send_command() is also protected by host lock, when IRQ handler > fires, not only the CPU running the IRQ handler cannot send new requests, > the rest CPUs can neither. Move the host lock wrapping the IRQ handler into > specific branches, i.e., ufshcd_uic_cmd_compl(), ufshcd_check_errors(), > ufshcd_tmc_handler() and ufshcd_transfer_req_compl(). Meanwhile, to further > reduce occpuation of host lock in ufshcd_transfer_req_compl(), host lock is > no longer required to call __ufshcd_transfer_req_compl(). As per test, the > optimization can bring considerable gain to random read/write performance. > > Cc: Stanley Chu <stanley.chu@xxxxxxxxxxxx> > Co-developed-by: Asutosh Das <asutoshd@xxxxxxxxxxxxxx> > Signed-off-by: Asutosh Das <asutoshd@xxxxxxxxxxxxxx> > Signed-off-by: Can Guo <cang@xxxxxxxxxxxxxx> According to my test, the performance indeed has impressive improvement with this series! Reviewed-by: Stanley Chu <stanley.chu@xxxxxxxxxxxx> > #endif > > bool req_abort_skip; > - bool in_use; > }; > > /**
